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Volfart A, Rossion B. The neuropsychological evaluation of face identity recognition. Neuropsychologia 2024; 198:108865. [PMID: 38522782 DOI: 10.1016/j.neuropsychologia.2024.108865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 03/14/2024] [Accepted: 03/18/2024] [Indexed: 03/26/2024]
Abstract
Facial identity recognition (FIR) is arguably the ultimate form of recognition for the adult human brain. Even if the term prosopagnosia is reserved for exceptionally rare brain-damaged cases with a category-specific abrupt loss of FIR at adulthood, subjective and objective impairments or difficulties of FIR are common in the neuropsychological population. Here we provide a critical overview of the evaluation of FIR both for clinicians and researchers in neuropsychology. FIR impairments occur following many causes that should be identified objectively by both general and specific, behavioral and neural examinations. We refute the commonly used dissociation between perceptual and memory deficits/tests for FIR, since even a task involving the discrimination of unfamiliar face images presented side-by-side relies on cortical memories of faces in the right-lateralized ventral occipito-temporal cortex. Another frequently encountered confusion is between specific deficits of the FIR function and a more general impairment of semantic memory (of people), the latter being most often encountered following anterior temporal lobe damage. Many computerized tests aimed at evaluating FIR have appeared over the last two decades, as reviewed here. However, despite undeniable strengths, they often suffer from ecological limitations, difficulties of instruction, as well as a lack of consideration for processing speed and qualitative information. Taking into account these issues, a recently developed behavioral test with natural images manipulating face familiarity, stimulus inversion, and correct response times as a key variable appears promising. The measurement of electroencephalographic (EEG) activity in the frequency domain from fast periodic visual stimulation also appears as a particularly promising tool to complete and enhance the neuropsychological assessment of FIR.
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Affiliation(s)
- Angélique Volfart
- School of Psychology and Counselling, Faculty of Health, Queensland University of Technology, Australia.
| | - Bruno Rossion
- Centre for Biomedical Technologies, Queensland University of Technology, Australia; Université de Lorraine, CNRS, IMoPA, F-54000, Nancy, France.
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Balgova E, Diveica V, Jackson RL, Binney RJ. Overlapping Neural Correlates Underpin Theory of Mind and Semantic Cognition: Evidence from a Meta-Analysis of 344 Functional Neuroimaging Studies. Neuropsychologia 2024:108904. [PMID: 38759780 DOI: 10.1016/j.neuropsychologia.2024.108904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 03/21/2024] [Accepted: 05/06/2024] [Indexed: 05/19/2024]
Abstract
Key unanswered questions for cognitive neuroscience include whether social cognition is underpinned by specialised brain regions and to what extent it simultaneously depends on more domain-general systems. Until we glean a better understanding of the full set of contributions made by various systems, theories of social cognition will remain fundamentally limited. In the present study, we evaluate a recent proposal that semantic cognition plays a crucial role in supporting social cognition. While previous brain-based investigations have focused on dissociating these two systems, our primary aim was to assess the degree to which the neural correlates are overlapping, particularly within two key regions, the anterior temporal lobe (ATL) and the temporoparietal junction (TPJ). We focus on activation associated with theory of mind (ToM) and adopt a meta-analytic activation likelihood approach to synthesise a large set of functional neuroimaging studies and compare their results with studies of semantic cognition. As a key consideration, we sought to account for methodological differences across the two sets of studies, including the fact that ToM studies tend to use nonverbal stimuli while the semantics literature is dominated by language-based tasks. Overall, we observed consistent overlap between the two sets of brain regions, especially in the ATL and TPJ. This supports the claim that tasks involving ToM draw upon more general semantic retrieval processes. We also identified activation specific to ToM in the right TPJ, bilateral anterior mPFC, and right precuneus. This is consistent with the view that, nested amongst more domain-general systems, there is specialised circuitry that is tuned to social processes.
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Affiliation(s)
- Eva Balgova
- Cognitive Neuroscience Institute, Department of Psychology, Bangor University, Gwynedd, Wales, UK; Department of Psychology, Aberystwyth University, Ceredigion, Wales, UK
| | - Veronica Diveica
- Cognitive Neuroscience Institute, Department of Psychology, Bangor University, Gwynedd, Wales, UK; Montreal Neurological Institute, Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada
| | - Rebecca L Jackson
- Department of Psychology & York Biomedical Research Institute, University of York, Heslington, York, UK
| | - Richard J Binney
- Cognitive Neuroscience Institute, Department of Psychology, Bangor University, Gwynedd, Wales, UK.
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Younes K, Smith V, Johns E, Carlson ML, Winer J, He Z, Henderson VW, Greicius MD, Young CB, Mormino EC. Temporal tau asymmetry spectrum influences divergent behavior and language patterns in Alzheimer's disease. Brain Behav Immun 2024:S0889-1591(24)00390-8. [PMID: 38710339 DOI: 10.1016/j.bbi.2024.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 03/31/2024] [Accepted: 05/02/2024] [Indexed: 05/08/2024] Open
Abstract
Understanding the psychiatric symptoms of Alzheimer s disease (AD) is crucial for advancing precision medicine and therapeutic strategies. The relationship between AD behavioral symptoms and asymmetry in spatial tau PET patterns is not well-known. Braak tau progression implicates the temporal lobes early. However, the clinical and pathological implications of temporal tau laterality remain unexplored. This cross-sectional study investigated the correlation between temporal tau PET asymmetry and behavior assessed using the neuropsychiatric inventory and composite scores for memory, executive function, and language, using data from the Alzheimer's Disease Neuroimaging Initiative (ADNI) dataset. In the entire cohort, continuous right and left temporal tau contributions to behavior and cognition were evaluated, controlling for age, sex, education, and tau burden on the contralateral side. Additionally, a temporal tau laterality index was calculated to define "asymmetry-extreme" groups (individuals with laterality indices greater than two standard deviations from the mean). 695 individuals (age = 73.9 ± 7.6 years, 372(53.5 %) females) were included, comprising 281(40 %) cognitively unimpaired (CU) amyloid negative, 185(27 %) CU amyloid positive, and 229(33 %) impaired (CI) amyloid positive participants. In the full cohort analysis, right temporal tau was associated with worse behavior (B = 8.14, p-value = 0.007), and left temporal tau was associated with worse language (B = 1.4, p-value < 0.001). Categorization into asymmetry-extreme groups revealed 20 right- and 27 left-asymmetric participants. Within these extreme groups, there was additional heterogeneity along the anterior-posterior dimension. Asymmetrical tau burden is associated with distinct behavioral and cognitive profiles. Wide multi-cultural implementation of social cognition measures is needed to understand right-sided asymmetry in AD.
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Affiliation(s)
- Kyan Younes
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, USA.
| | - Viktorija Smith
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, USA
| | - Emily Johns
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, USA
| | - Mackenzie L Carlson
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, USA
| | - Joseph Winer
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, USA
| | - Zihuai He
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, USA; Quantitative Sciences Unit, Department of Medicine, Stanford University, Stanford, CA, USA
| | - Victor W Henderson
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, USA; Department of Epidemiology and Population Health, Stanford University, USA
| | - Michael D Greicius
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, USA
| | - Christina B Young
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, USA
| | - Elizabeth C Mormino
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, USA; Wu Tsai Neuroscience Institute, Stanford, CA, USA
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Hurley RS, Lapin B, Jones SE, Crawford A, Leverenz JB, Bonner-Jackson A, Pillai JA. Hemispheric asymmetries in hippocampal volume related to memory in left and right temporal variants of frontotemporal degeneration. Front Neurol 2024; 15:1374827. [PMID: 38742046 PMCID: PMC11089209 DOI: 10.3389/fneur.2024.1374827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 04/16/2024] [Indexed: 05/16/2024] Open
Abstract
In addition to Alzheimer's disease (AD), the hippocampus is now known to be affected in variants of frontotemporal degeneration (FTD). In semantic variant primary progressive aphasia (svPPA), characterized by language impairments, hippocampal atrophy is greater in the left hemisphere. Nonverbal impairments (e.g., visual object recognition) are prominent in the right temporal variant of FTD (rtvFTD), and hippocampal atrophy may be greater in the right hemisphere. In this study we examined the hypothesis that leftward hippocampal asymmetry (predicted in svPPA) would be associated with selective verbal memory impairments (with relative preservation of visual memory), while rightward asymmetry (predicted in rtvFTD) would be associated with the opposite pattern (greater visual memory impairment). In contrast, we predicted that controls and individuals in the amnestic mild cognitive impairment stage of AD (aMCI), both of whom were expected to show symmetrical hippocampal volumes, would show roughly equivalent scores in verbal and visual memory. Participants completed delayed recall tests with words and geometric shapes, and hippocampal volumes were assessed with MRI. The aMCI sample showed symmetrical hippocampal atrophy, and similar degree of verbal and visual memory impairment. The svPPA sample showed greater left hippocampal atrophy and verbal memory impairment, while rtvFTD showed greater right hippocampal atrophy and visual memory impairment. Greater asymmetry in hippocampal volumes was associated with larger differences between verbal and visual memory in the FTD samples. Unlike AD, asymmetry is a core feature of brain-memory relationships in temporal variants of FTD.
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Affiliation(s)
- Robert S. Hurley
- Department of Psychology, Cleveland State University, Cleveland, OH, United States
| | - Brittany Lapin
- Department of Quantitative Health Sciences, Lerner Research Institute Cleveland Clinic, Cleveland, OH, United States
- Center for Outcomes Research and Evaluation, Neurological Institute Cleveland Clinic, Cleveland, OH, United States
| | - Stephen E. Jones
- Department of Diagnostic Radiology, Imaging Institute Cleveland Clinic, Cleveland, OH, United States
| | - Anna Crawford
- Department of Diagnostic Radiology, Imaging Institute Cleveland Clinic, Cleveland, OH, United States
| | - James B. Leverenz
- Lou Ruvo Center for Brain Health, Neurological Institute Cleveland Clinic, Cleveland, OH, United States
| | - Aaron Bonner-Jackson
- Lou Ruvo Center for Brain Health, Neurological Institute Cleveland Clinic, Cleveland, OH, United States
| | - Jagan A. Pillai
- Lou Ruvo Center for Brain Health, Neurological Institute Cleveland Clinic, Cleveland, OH, United States
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Ghirelli A, Spinelli EG, Canu E, Basaia S, Castelnovo V, Cecchetti G, Sibilla E, Domi T, Magnani G, Caso F, Caroppo P, Prioni S, Villa C, Rossi G, Tremolizzo L, Appollonio I, Verde F, Ticozzi N, Silani V, Filippi M, Agosta F. Clinical and neuroanatomical characterization of the semantic behavioral variant of frontotemporal dementia in a multicenter Italian cohort. J Neurol 2024:10.1007/s00415-024-12338-9. [PMID: 38597943 DOI: 10.1007/s00415-024-12338-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/19/2024] [Accepted: 03/18/2024] [Indexed: 04/11/2024]
Abstract
BACKGROUND Semantic behavioral variant frontotemporal dementia (sbvFTD) is a neurodegenerative condition presenting with specific behavioral and semantic derangements and predominant atrophy of the right anterior temporal lobe (ATL). The objective was to evaluate clinical, neuropsychological, neuroimaging, and genetic features of an Italian sbvFTD cohort, defined according to recently proposed guidelines, compared to semantic variant primary progressive aphasia (svPPA) and behavioral variant FTD (bvFTD) patients. METHODS Fifteen sbvFTD, sixty-three bvFTD, and twenty-five svPPA patients and forty controls were enrolled. Patients underwent clinical, cognitive evaluations, and brain MRI. Symptoms of bvFTD patients between onset and first visit were retrospectively recorded and classified as early and late. Grey matter atrophy was investigated using voxel-based morphometry. RESULTS sbvFTD experienced early criteria-specific symptoms: world, object and person-specific semantic loss (67%), complex compulsions and rigid thought (60%). Sequentially, more behavioral symptoms emerged (apathy/inertia, loss of empathy) along with non-criteria-specific symptoms (anxiety, suspiciousness). sbvFTD showed sparing of attentive/executive functions, especially compared to bvFTD and better language functions compared to svPPA. All sbvFTD patients failed at the famous face recognition test and more than 80% failed in understanding written metaphors and humor. At MRI, sbvFTD had predominant right ATL atrophy, almost specular to svPPA. Three sbvFTD patients presented pathogenic genetic variants. CONCLUSION We replicated the application of sbvFTD diagnostic guidelines in an independent Italian cohort, demonstrating that the presence of person-specific semantic knowledge loss and mental rigidity, along with preserved executive functions and a predominant right ATL atrophy with sparing of frontal lobes, should prompt a diagnosis of sbvFTD.
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Affiliation(s)
- Alma Ghirelli
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
- Neurology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Edoardo Gioele Spinelli
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
- Neurology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Elisa Canu
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy
| | - Silvia Basaia
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy
| | - Veronica Castelnovo
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy
| | - Giordano Cecchetti
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy
- Neurology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Elisa Sibilla
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy
| | - Teuta Domi
- Experimental Neuropathology Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Giuseppe Magnani
- Neurology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Francesca Caso
- Neurology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Paola Caroppo
- Unit of Neurology 5-Neuropathology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Sara Prioni
- Unit of Neurology 5-Neuropathology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Cristina Villa
- Unit of Neurology 5-Neuropathology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Giacomina Rossi
- Unit of Neurology 5-Neuropathology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Lucio Tremolizzo
- Neurology Unit, "San Gerardo" Hospital and University of Milano-Bicocca, Monza, Italy
| | - Ildebrando Appollonio
- Neurology Unit, "San Gerardo" Hospital and University of Milano-Bicocca, Monza, Italy
| | - Federico Verde
- Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, Milan, Italy
- "Dino Ferrari" Center, Department of Pathophysiology and Transplantation, Università Degli Studi di Milano, Milan, Italy
| | - Nicola Ticozzi
- Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, Milan, Italy
- "Dino Ferrari" Center, Department of Pathophysiology and Transplantation, Università Degli Studi di Milano, Milan, Italy
| | - Vincenzo Silani
- Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, Milan, Italy
- "Dino Ferrari" Center, Department of Pathophysiology and Transplantation, Università Degli Studi di Milano, Milan, Italy
| | - Massimo Filippi
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
- Neurology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Neurophysiology Service, IRCSS San Raffaele Scientific Institute, Milan, Italy
- Neurorehabilitation Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Federica Agosta
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy.
- Vita-Salute San Raffaele University, Milan, Italy.
- Neurology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy.
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Tee BL, Li‐Ying LK, Chen T, Yan CTY, Tsoh J, Chan AL, Wong A, Lo RY, Lu CJ, Sun Y, Wang P, Lee Y, Chiu M, Allen IE, Battistella G, Bak TH, Chuang Y, García AM, Gorno‐Tempini ML. More than a piece of cake: Noun classifier processing in primary progressive aphasia. Alzheimers Dement 2024; 20:2353-2363. [PMID: 38284802 PMCID: PMC11032580 DOI: 10.1002/alz.13701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 11/29/2023] [Accepted: 12/31/2023] [Indexed: 01/30/2024]
Abstract
INTRODUCTION Clinical understanding of primary progressive aphasia (PPA) has been primarily derived from Indo-European languages. Generalizing certain linguistic findings across languages is unfitting due to contrasting linguistic structures. While PPA patients showed noun classes impairments, Chinese languages lack noun classes. Instead, Chinese languages are classifier language, and how PPA patients manipulate classifiers is unknown. METHODS We included 74 native Chinese speakers (22 controls, 52 PPA). For classifier production task, participants were asked to produce the classifiers of high-frequency items. In a classifier recognition task, participants were asked to choose the correct classifier. RESULTS Both semantic variant (sv) PPA and logopenic variant (lv) PPA scored significantly lower in classifier production task. In classifier recognition task, lvPPA patients outperformed svPPA patients. The classifier production scores were correlated to cortical volume over left temporal and visual association cortices. DISCUSSION This study highlights noun classifiers as linguistic markers to discriminate PPA syndromes in Chinese speakers. HIGHLIGHTS Noun classifier processing varies in the different primary progressive aphasia (PPA) variants. Specifically, semantic variant PPA (svPPA) and logopenic variant PPA (lvPPA) patients showed significantly lower ability in producing specific classifiers. Compared to lvPPA, svPPA patients were less able to choose the accurate classifiers when presented with choices. In svPPA, classifier production score was positively correlated with gray matter volume over bilateral temporal and left visual association cortices in svPPA. Conversely, classifier production performance was correlated with volumetric changes over left ventral temporal and bilateral frontal regions in lvPPA. Comparable performance of mass and count classifier were noted in Chinese PPA patients, suggesting a common cognitive process between mass and count classifiers in Chinese languages.
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Affiliation(s)
- Boon Lead Tee
- Memory and Aging CenterUniversity of California at San FranciscoSan FranciscoCaliforniaUSA
- Department of NeurologyDyslexia CenterUniversity of California, San FranciscoSan FranciscoCaliforniaUSA
- Global Brain Health InstituteUniversity of California, San FranciscoSan FranciscoCaliforniaUSA
| | - Lorinda Kwan‐Chen Li‐Ying
- Department of Special Education and CounsellingThe Education University of Hong KongHong KongHong Kong
| | - Ta‐Fu Chen
- Department of NeurologyNational Taiwan University HospitalTaipeiTaiwan R.O.C.
| | - Connie TY Yan
- Department of PsychiatryPrince of Wales Hospital and ShaTin HospitalHong KongHong Kong
- Department of PsychiatryFaculty of MedicineThe Chinese University of Hong KongHong KongHong Kong
| | - Joshua Tsoh
- Department of PsychiatryPrince of Wales Hospital and ShaTin HospitalHong KongHong Kong
- Department of PsychiatryFaculty of MedicineThe Chinese University of Hong KongHong KongHong Kong
| | | | - Adrian Wong
- Division of NeurologyDepartment of Medicine and TherapeuticsChinese University of Hong KongHong KongHong Kong
| | - Raymond Y. Lo
- Department of NeurologyBuddhist Tzu Chi General HospitalHualienTaiwan
| | - Chien Jung Lu
- Department of NeurologyEn Chu Kong HospitalNew Taipei CityTaiwan R.O.C.
| | - Yu Sun
- Department of NeurologyEn Chu Kong HospitalNew Taipei CityTaiwan R.O.C.
| | - Pei‐Ning Wang
- Division of General NeurologyDepartment of Neurological InstituteTaipei Veterans General HospitalTaipeiTaiwan R.O.C.
- School of MedicineNational Yang Ming Chiao Tung University College of MedicineTaipeiTaiwan R.O.C.
- Brain Research CenterNational Yang‐Ming Chiao‐Tung UniversityHsinChuTaiwan R.O.C.
| | - YiChen Lee
- Department of NeurologyNational Taiwan University HospitalHsinChuTaiwan R.O.C.
| | - Ming‐Jang Chiu
- Department of NeurologyNational Taiwan University HospitalTaipeiTaiwan R.O.C.
| | - Isabel Elaine Allen
- Department of Epidemiology and BiostatisticsUniversity of California, San FranciscoSan FranciscoCaliforniaUSA
| | - Giovanni Battistella
- Department of Otolaryngology ‐ Head and Neck SurgeryMassachusetts Eye and Ear and Harvard Medical SchoolBostonMassachusettsUSA
| | - Thomas H. Bak
- School of Philosophy, Psychology and Language Sciences (PPLS)University of EdinburghEdinburghUK
| | - Yu‐Chen Chuang
- Division of General NeurologyDepartment of Neurological InstituteTaipei Veterans General HospitalTaipeiTaiwan R.O.C.
| | - Adolfo M. García
- Global Brain Health InstituteUniversity of California, San FranciscoSan FranciscoCaliforniaUSA
- Cognitive Neuroscience CenterUniversidad de San AndrésBuenos AiresArgentina
- Departamento de Lingüística y LiteraturaFacultad de HumanidadesUniversidad de Santiago de ChileSantiagoChile
| | - Maria Luisa Gorno‐Tempini
- Memory and Aging CenterUniversity of California at San FranciscoSan FranciscoCaliforniaUSA
- Department of NeurologyDyslexia CenterUniversity of California, San FranciscoSan FranciscoCaliforniaUSA
- Global Brain Health InstituteUniversity of California, San FranciscoSan FranciscoCaliforniaUSA
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Kertesz A. Anton, Balint, Charles Bonnet, and the Others: The ABC of Cerebral Visual Syndromes (A Historical Guide and an Update). Can J Neurol Sci 2024; 51:300-304. [PMID: 37385640 DOI: 10.1017/cjn.2023.246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
Cerebral visual impairments have been of great interest to neurologists, ophthalmologists, and neuroscientists. Complicated or partial varieties related to cortical blindness are discussed in this review. They are a fascinating alphabet of eponymic clinical syndromes, bordering neurology, ophthalmology, and even psychiatry. Recent functional imaging and experimental studies have contributed further knowledge of cognitive visual organization in addition to the classical lesion evidence.
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Affiliation(s)
- Andrew Kertesz
- Department of Clinical Neurological Sciences, Western University, London, ON, Canada
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Shebani Z, Patterson K. (What) can patients with semantic dementia learn? Neuropsychologia 2024; 197:108844. [PMID: 38428519 DOI: 10.1016/j.neuropsychologia.2024.108844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 02/17/2024] [Accepted: 02/27/2024] [Indexed: 03/03/2024]
Abstract
Semantic Dementia (SD) is a neurodegenerative disease characterised by progressive deterioration of semantic knowledge, resulting in diminished understanding of concepts, whether encountered in verbal or non-verbal form. Over the past three decades, a number of studies employing a range of treatment techniques and learning methods have examined whether patients with SD can relearn previously known concepts or learn and retain new information. In this article, we review this research, addressing two main questions: a) Can aspects of semantic knowledge that are 'lost' due to degeneration be re-acquired? b) How much do other memory systems (working and episodic memory) interact with and depend on semantic memory? Several studies demonstrate successful relearning of previously known words and concepts in SD, particularly after regular, prolonged practice; but this success tends to diminish once practice ceases, and furthermore often fails to generalise to other instances of the same object/concept. This pattern suggests that, with impaired semantic knowledge, learning relies to an abnormal extent on perceptual factors, making it difficult to abstract away from the specific visual or other perceptual format in which a given concept has been trained. Furthermore, the impact of semantic 'status' of a word or object on both working and episodic memory indicates pervasive interaction of these other memory systems with conceptual knowledge.
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Affiliation(s)
- Zubaida Shebani
- Department of Psychology, Sultan Qaboos University, Muscat, Oman.
| | - Karalyn Patterson
- Medical Research Council, Cognition and Brain Sciences Unit, University of Cambridge, UK
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Cole RH, Clark CN, Poole NA. Semantic dementia: a complex and culturally influenced presentation. BJPsych Bull 2024; 48:44-50. [PMID: 36718490 PMCID: PMC10801360 DOI: 10.1192/bjb.2022.100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 12/08/2022] [Accepted: 12/20/2022] [Indexed: 02/01/2023] Open
Abstract
SUMMARY The variants of frontotemporal dementia (FTD) require careful differentiation from primary psychiatric disorders as the neuropsychiatric manifestations can overshadow the unique cognitive deficits. The language variants of FTD are less readily recognised by trainees despite making up around 43% of cases. This educational article presents an anonymised case of one of the language variants: semantic dementia. The cognitive deficits and neuropsychiatric manifestations (delusions and hyperreligiosity) are explored in terms of aetiology and management. By the end of the article, readers should be able to differentiate FTD from Alzheimer's disease, understand the principles of management and associated risks, and develop a multifaceted approach to hyperreligiosity in dementia.
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Affiliation(s)
- Richard H. Cole
- Camden and Islington NHS Foundation Trust, London, UK and Institute of Psychiatry, Psychology & Neuroscience, King's College London, UK
| | | | - Norman A. Poole
- South West London and St George's Mental Health NHS Trust, London, UK
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Baumard J, Lesourd M, Jarry C, Merck C, Etcharry-Bouyx F, Chauviré V, Belliard S, Osiurak F, Le Gall D. Knowing "what for," but not "where": Dissociation between functional and contextual tool knowledge in healthy individuals and patients with dementia. J Int Neuropsychol Soc 2024; 30:97-106. [PMID: 37650212 DOI: 10.1017/s1355617723000486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
OBJECTIVE Semantic tool knowledge underlies the ability to perform activities of daily living. Models of apraxia have emphasized the role of functional knowledge about the action performed with tools (e.g., a hammer and a mallet allow a "hammering" action), and contextual knowledge informing individuals about where to find tools in the social space (e.g., a hammer and a mallet can be found in a workshop). The goal of this study was to test whether contextual or functional knowledge, would be central in the organization of tool knowledge. It was assumed that contextual knowledge would be more salient than functional knowledge for healthy controls and that patients with dementia would show impaired contextual knowledge. METHODS We created an original, open-ended categorization task with ambiguity, in which the same familiar tools could be matched on either contextual or functional criteria. RESULTS In our findings, healthy controls prioritized a contextual, over a functional criterion. Patients with dementia had normal visual categorization skills (as demonstrated by an original picture categorization task), yet they made less contextual, but more functional associations than healthy controls. CONCLUSION The findings support a dissociation between functional knowledge ("what for") on the one hand, and contextual knowledge ("where") on the other hand. While functional knowledge may be distributed across semantic and action-related factors, contextual knowledge may actually be the name of higher-order social norms applied to tool knowledge. These findings may encourage researchers to test both functional and contextual knowledge to diagnose semantic deficits and to use open-ended categorization tests.
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Affiliation(s)
| | - Mathieu Lesourd
- Laboratoire de Recherches Intégratives en Neurosciences et Psychologie Cognitive & MSHE Ledoux, CNRS, Université Bourgogne Franche-Comté, Besançon, France
| | - Christophe Jarry
- Laboratoire de Psychologie des Pays de la Loire (EA 4638), Université d'Angers, Angers, France
| | - Catherine Merck
- Department of Neurology, University Hospital Pontchaillou, Rennes, France
| | | | - Valérie Chauviré
- Department of Neurology, University Hospital of Angers, Angers, France
| | - Serge Belliard
- Department of Neurology, University Hospital Pontchaillou, Rennes, France
| | - François Osiurak
- Laboratoire d'Etude des Mécanismes Cognitifs (EA 3082), Université de Lyon, Lyon, France
- Institut Universitaire de France, Paris, France
| | - Didier Le Gall
- Laboratoire de Psychologie des Pays de la Loire (EA 4638), Université d'Angers, Angers, France
- Département de Neurologie, Unité de Neuropsychologie, Centre Hospitalier Universitaire d'Angers, Angers, France
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11
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Akhmadullina DR, Konovalov RN, Shpilyukova YA, Fedotova EY, Illarioshkin SN. Anomia: Deciphering Functional Neuroanatomy in Primary Progressive Aphasia Variants. Brain Sci 2023; 13:1703. [PMID: 38137151 PMCID: PMC10741652 DOI: 10.3390/brainsci13121703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/12/2023] [Accepted: 12/05/2023] [Indexed: 12/24/2023] Open
Abstract
Naming decline is one of the most common symptoms of primary progressive aphasia (PPA). Most studies on anomia in PPA are performed without taking into account PPA variants, especially for action naming. Only limited data are available for the neuroanatomical basis of anomia considering differences in the pathogenesis of PPAs. The aim of our study is to investigate the associations between anomia severity for both noun and verb naming and gray matter (GM) atrophy, as well as accompanying functional connectivity (FC) changes in three PPA variants. A total of 17 patients with non-fluent (nfvPPA), 11 with semantic (svPPA), and 9 with logopenic (lvPPA) PPA variants were included in the study and underwent cognitive/naming assessments and brain MRIs. Voxel-based morphometry was performed to evaluate GM volume. A resting-state functional MRI was applied to investigate FC changes in the identified GM areas. The study shows that different brain regions are involved in naming decline in each PPA variant with a predominantly temporal lobe involvement in svPPA, parietal lobe involvement in lvPPA, and frontal lobe involvement in nfvPPA. Separate data for object and action naming in PPA variants are provided. The obtained results mainly correspond to the current understanding of language processing and indicate that the evaluation of language impairments is preferable for each PPA variant separately. A further analysis of larger cohorts of patients is necessary to confirm these preliminary results.
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12
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Soshi T. Neural Coupling between Interhemispheric and Frontoparietal Functional Connectivity during Semantic Processing. Brain Sci 2023; 13:1601. [PMID: 38002560 PMCID: PMC10670303 DOI: 10.3390/brainsci13111601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 11/09/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023] Open
Abstract
Interhemispheric and frontoparietal functional connectivity have been reported to increase during explicit information processing. However, it is unclear how and when interhemispheric and frontoparietal functional connectivity interact during explicit semantic processing. Here, we tested the neural coupling hypothesis that explicit semantic processing promotes neural activity in the nondominant right hemispheric areas, owing to synchronization with enhanced frontoparietal functional connectivity at later processing stages. We analyzed electroencephalogram data obtained using a semantic priming paradigm, which comprised visual priming and target words successively presented under direct or indirect attention to semantic association. Scalp potential analysis demonstrated that the explicit processing of congruent targets reduced negative event-related potentials, as previously reported. Current source density analysis showed that explicit semantic processing activated the right temporal area during later temporal intervals. Subsequent dynamic functional connectivity and neural coupling analyses revealed that explicit semantic processing increased the correlation between right temporal source activities and frontoparietal functional connectivity in later temporal intervals. These findings indicate that explicit semantic processing increases neural coupling between the interhemispheric and frontoparietal functional connectivity during later processing stages.
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Affiliation(s)
- Takahiro Soshi
- Department of English Language Studies, Faculty of Foreign Language Studies, Mejiro University, Shinjyuku, Tokyo 161-8539, Japan
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13
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Younes K, Smith V, Johns E, Carlson ML, Winer J, He Z, Henderson VW, Greicius MD, Young CB, Mormino EC. Temporal tau asymmetry spectrum influences divergent behavior and language patterns in Alzheimer`s disease. medRxiv 2023:2023.11.10.23296836. [PMID: 37986964 PMCID: PMC10659470 DOI: 10.1101/2023.11.10.23296836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
Understanding psychiatric symptoms in Alzheimer`s disease (AD) is crucial for advancing precision medicine and therapeutic strategies. The relationship between AD behavioral symptoms and asymmetry in spatial tau PET patterns is unknown. Braak tau progression implicates the temporal lobes early. However, the clinical and pathological implications of temporal tau laterality remain unexplored. This cross-sectional study investigated the correlation between temporal tau PET asymmetry and behavior assessed using the neuropsychiatric inventory, and composite scores for memory, executive function, and language; using data from the Alzheimer's Disease Neuroimaging Initiative (ADNI) dataset. In the entire cohort, continuous right and left temporal tau contributions to behavior and cognition were evaluated controlling for age, sex, education, and tau burden on the contralateral side. Additionally, a temporal tau laterality index was calculated to define "asymmetry-extreme" groups (individuals with laterality indices greater than two standard deviations from the mean). 858 individuals (age=73.9±7.7 years, 434(50%) females) were included, comprising 438 cognitively unimpaired (CU) (53.4%) and 420 impaired (CI) participants (48.9%). In the full cohort analysis, right temporal tau was associated with worse behavior (B(SE)=7.19 (2.9), p-value=0.01) and left temporal tau was associated with worse language (B(SE)=1.4(0.2), p-value<0.0001). Categorization into asymmetry-extreme groups revealed 20 right- and 27 left-asymmetric participants. Within these extreme groups, four patterns of tau PET uptake were observed: anterior temporal, typical AD, typical AD with frontal involvement, and posterior. Asymmetrical tau burden is associated with distinct behavioral and cognitive profiles. Behavioral and socioemotional measures are needed to understand right-sided asymmetry in AD.
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Affiliation(s)
- Kyan Younes
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine
| | - Viktorija Smith
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine
| | - Emily Johns
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine
| | - Mackenzie L. Carlson
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine
| | - Joseph Winer
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine
| | - Zihuai He
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine
- Quantitative Sciences Unit, Department of Medicine, Stanford University, Stanford, California
| | - Victor W. Henderson
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine
- Department of Epidemiology and Population Health, Stanford University
| | - Michael D. Greicius
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine
| | - Christina B. Young
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine
| | - Elizabeth C. Mormino
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine
- Wu Tsai Neuroscience Institute, Stanford, CA, USA
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14
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Hua AY, Roy ARK, Kosik EL, Morris NA, Chow TE, Lukic S, Montembeault M, Borghesani V, Younes K, Kramer JH, Seeley WW, Perry DC, Miller ZA, Rosen HJ, Miller BL, Rankin KP, Gorno-Tempini ML, Sturm VE. Diminished baseline autonomic outflow in semantic dementia relates to left-lateralized insula atrophy. Neuroimage Clin 2023; 40:103522. [PMID: 37820490 PMCID: PMC10582496 DOI: 10.1016/j.nicl.2023.103522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 08/28/2023] [Accepted: 09/30/2023] [Indexed: 10/13/2023]
Abstract
In semantic dementia (SD), asymmetric degeneration of the anterior temporal lobes is associated with loss of semantic knowledge and alterations in socioemotional behavior. There are two clinical variants of SD: semantic variant primary progressive aphasia (svPPA), which is characterized by predominant atrophy in the anterior temporal lobe and insula in the left hemisphere, and semantic behavioral variant frontotemporal dementia (sbvFTD), which is characterized by predominant atrophy in those structures in the right hemisphere. Previous studies of behavioral variant frontotemporal dementia, an associated clinical syndrome that targets the frontal lobes and anterior insula, have found impairments in baseline autonomic nervous system activity that correlate with left-lateralized frontotemporal atrophy patterns and disruptions in socioemotional functioning. Here, we evaluated whether there are similar impairments in resting autonomic nervous system activity in SD that also reflect left-lateralized atrophy and relate to diminished affiliative behavior. A total of 82 participants including 33 people with SD (20 svPPA and 13 sbvFTD) and 49 healthy older controls completed a laboratory-based assessment of respiratory sinus arrhythmia (RSA; a parasympathetic measure) and skin conductance level (SCL; a sympathetic measure) during a two-minute resting baseline period. Participants also underwent structural magnetic resonance imaging, and informants rated their current affiliative behavior on the Interpersonal Adjective Scale. Results indicated that baseline RSA and SCL were lower in SD than in healthy controls, with significant impairments present in both svPPA and sbvFTD. Voxel-based morphometry analyses revealed left-greater-than-right atrophy related to diminished parasympathetic and sympathetic outflow in SD. While left-lateralized atrophy in the mid-to-posterior insula correlated with lower RSA, left-lateralized atrophy in the ventral anterior insula correlated with lower SCL. In SD, lower baseline RSA, but not lower SCL, was associated with lower gregariousness/extraversion. Neither autonomic measure related to warmth/agreeableness, however. Through the assessment of baseline autonomic nervous system physiology, the present study contributes to expanding conceptualizations of the biological basis of socioemotional alterations in svPPA and sbvFTD.
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Affiliation(s)
- Alice Y Hua
- Department of Neurology, University of California, San Francisco, Memory and Aging Center, San Francisco, CA, USA
| | - Ashlin R K Roy
- Department of Neurology, University of California, San Francisco, Memory and Aging Center, San Francisco, CA, USA
| | - Eena L Kosik
- Department of Neurology, University of California, San Francisco, Memory and Aging Center, San Francisco, CA, USA
| | - Nathaniel A Morris
- Department of Neurology, University of California, San Francisco, Memory and Aging Center, San Francisco, CA, USA
| | - Tiffany E Chow
- Department of Neurology, University of California, San Francisco, Memory and Aging Center, San Francisco, CA, USA
| | - Sladjana Lukic
- Department of Neurology, University of California, San Francisco, Memory and Aging Center, San Francisco, CA, USA
| | - Maxime Montembeault
- Department of Neurology, University of California, San Francisco, Memory and Aging Center, San Francisco, CA, USA
| | | | - Kyan Younes
- Department of Neurology, Stanford Neuroscience Health Center, Palo Alto, CA, USA
| | - Joel H Kramer
- Department of Neurology, University of California, San Francisco, Memory and Aging Center, San Francisco, CA, USA
| | - William W Seeley
- Department of Neurology, University of California, San Francisco, Memory and Aging Center, San Francisco, CA, USA
| | - David C Perry
- Department of Neurology, University of California, San Francisco, Memory and Aging Center, San Francisco, CA, USA
| | - Zachary A Miller
- Department of Neurology, University of California, San Francisco, Memory and Aging Center, San Francisco, CA, USA
| | - Howard J Rosen
- Department of Neurology, University of California, San Francisco, Memory and Aging Center, San Francisco, CA, USA
| | - Bruce L Miller
- Department of Neurology, University of California, San Francisco, Memory and Aging Center, San Francisco, CA, USA
| | - Katherine P Rankin
- Department of Neurology, University of California, San Francisco, Memory and Aging Center, San Francisco, CA, USA
| | - Maria Luisa Gorno-Tempini
- Department of Neurology, University of California, San Francisco, Memory and Aging Center, San Francisco, CA, USA
| | - Virginia E Sturm
- Department of Neurology, University of California, San Francisco, Memory and Aging Center, San Francisco, CA, USA.
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15
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Antonioni A, Raho EM, Lopriore P, Pace AP, Latino RR, Assogna M, Mancuso M, Gragnaniello D, Granieri E, Pugliatti M, Di Lorenzo F, Koch G. Frontotemporal Dementia, Where Do We Stand? A Narrative Review. Int J Mol Sci 2023; 24:11732. [PMID: 37511491 PMCID: PMC10380352 DOI: 10.3390/ijms241411732] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/18/2023] [Accepted: 07/19/2023] [Indexed: 07/30/2023] Open
Abstract
Frontotemporal dementia (FTD) is a neurodegenerative disease of growing interest, since it accounts for up to 10% of middle-age-onset dementias and entails a social, economic, and emotional burden for the patients and caregivers. It is characterised by a (at least initially) selective degeneration of the frontal and/or temporal lobe, generally leading to behavioural alterations, speech disorders, and psychiatric symptoms. Despite the recent advances, given its extreme heterogeneity, an overview that can bring together all the data currently available is still lacking. Here, we aim to provide a state of the art on the pathogenesis of this disease, starting with established findings and integrating them with more recent ones. In particular, advances in the genetics field will be examined, assessing them in relation to both the clinical manifestations and histopathological findings, as well as considering the link with other diseases, such as amyotrophic lateral sclerosis (ALS). Furthermore, the current diagnostic criteria will be explored, including neuroimaging methods, nuclear medicine investigations, and biomarkers on biological fluids. Of note, the promising information provided by neurophysiological investigations, i.e., electroencephalography and non-invasive brain stimulation techniques, concerning the alterations in brain networks and neurotransmitter systems will be reviewed. Finally, current and experimental therapies will be considered.
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Affiliation(s)
- Annibale Antonioni
- Unit of Clinical Neurology, Neurosciences and Rehabilitation Department, University of Ferrara, 44121 Ferrara, Italy
- Doctoral Program in Translational Neurosciences and Neurotechnologies, University of Ferrara, 44121 Ferrara, Italy
| | - Emanuela Maria Raho
- Unit of Clinical Neurology, Neurosciences and Rehabilitation Department, University of Ferrara, 44121 Ferrara, Italy
| | - Piervito Lopriore
- Neurological Institute, Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy
| | - Antonia Pia Pace
- Institute of Radiology, Department of Medicine, University of Udine, University Hospital S. Maria della Misericordia, Azienda Sanitaria-Universitaria Friuli Centrale, 33100 Udine, Italy
| | - Raffaela Rita Latino
- Complex Structure of Neurology, Emergency Department, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Casa Sollievo della Sofferenza, 71013 San Giovanni Rotondo, Italy
| | - Martina Assogna
- Centro Demenze, Policlinico Tor Vergata, University of Rome 'Tor Vergata', 00133 Rome, Italy
- Non Invasive Brain Stimulation Unit, Istituto di Ricovero e Cura a Carattere Scientifico Santa Lucia, 00179 Rome, Italy
| | - Michelangelo Mancuso
- Neurological Institute, Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy
| | - Daniela Gragnaniello
- Nuerology Unit, Neurosciences and Rehabilitation Department, Ferrara University Hospital, 44124 Ferrara, Italy
| | - Enrico Granieri
- Unit of Clinical Neurology, Neurosciences and Rehabilitation Department, University of Ferrara, 44121 Ferrara, Italy
| | - Maura Pugliatti
- Unit of Clinical Neurology, Neurosciences and Rehabilitation Department, University of Ferrara, 44121 Ferrara, Italy
| | - Francesco Di Lorenzo
- Non Invasive Brain Stimulation Unit, Istituto di Ricovero e Cura a Carattere Scientifico Santa Lucia, 00179 Rome, Italy
| | - Giacomo Koch
- Non Invasive Brain Stimulation Unit, Istituto di Ricovero e Cura a Carattere Scientifico Santa Lucia, 00179 Rome, Italy
- Iit@Unife Center for Translational Neurophysiology, Istituto Italiano di Tecnologia, 44121 Ferrara, Italy
- Section of Human Physiology, Neurosciences and Rehabilitation Department, University of Ferrara, 44121 Ferrara, Italy
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16
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Bonnì S, Borghi I, Maiella M, Casula EP, Koch G, Caltagirone C, Gainotti G. Transcranial Direct Current Stimulation Effects on the Neural Substrate of Conceptual Representations. Brain Sci 2023; 13:1037. [PMID: 37508969 PMCID: PMC10376965 DOI: 10.3390/brainsci13071037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/03/2023] [Accepted: 07/04/2023] [Indexed: 07/30/2023] Open
Abstract
The aim of this study was to shed light on the neural substrate of conceptual representations starting from the construct of higher-order convergence zones and trying to evaluate the unitary or non-unitary nature of this construct. We used the 'Thematic and Taxonomic Semantic (TTS) task' to investigate (a) the neural substrate of stimuli belonging to biological and artifact categories, (b) the format of stimuli presentation, i.e., verbal or pictorial, and (c) the relation between stimuli, i.e., categorial or contextual. We administered anodal transcranial direct current stimulation (tDCS) to different brain structures during the execution of the TTS task. Twenty healthy participants were enrolled and divided into two groups, one investigating the role of the anterior temporal lobes (ATL) and the other the temporo-parietal junctions (TPJ). Each participant underwent three sessions of stimulation to facilitate a control condition and to investigate the role of both hemispheres. Results showed that ATL stimulation influenced all conceptual representations in relation to the format of presentation (i.e., left-verbal and right-pictorial). Moreover, ATL stimulation modulated living categories and taxonomic relations specifically, whereas TPJ stimulation did not influence semantic task performances.
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Affiliation(s)
- Sonia Bonnì
- Non-Invasive Brain Stimulation Unit, Department of Behavioral and Clinical Neurology, Fondazione Santa Lucia IRCCS, 00179 Rome, Italy
| | - Ilaria Borghi
- Non-Invasive Brain Stimulation Unit, Department of Behavioral and Clinical Neurology, Fondazione Santa Lucia IRCCS, 00179 Rome, Italy
- Section of Human Physiology, University of Ferrara, 44121 Ferrara, Italy
| | - Michele Maiella
- Non-Invasive Brain Stimulation Unit, Department of Behavioral and Clinical Neurology, Fondazione Santa Lucia IRCCS, 00179 Rome, Italy
| | - Elias Paolo Casula
- Non-Invasive Brain Stimulation Unit, Department of Behavioral and Clinical Neurology, Fondazione Santa Lucia IRCCS, 00179 Rome, Italy
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Giacomo Koch
- Non-Invasive Brain Stimulation Unit, Department of Behavioral and Clinical Neurology, Fondazione Santa Lucia IRCCS, 00179 Rome, Italy
- Section of Human Physiology, University of Ferrara, 44121 Ferrara, Italy
| | - Carlo Caltagirone
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy
- Department of Clinical and Behavioral Neurology, Fondazione Santa Lucia IRCCS, 00179 Rome, Italy
| | - Guido Gainotti
- Department of Clinical and Behavioral Neurology, Fondazione Santa Lucia IRCCS, 00179 Rome, Italy
- Institute of Neurology, Catholic University of the Sacred Heart, 00168 Rome, Italy
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17
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Rothstein A, Zhang Y, Briggs AQ, Bernard MA, Shao Y, Favilla C, Sloane K, Witsch J, Masurkar AV. Impact of white matter hyperintensities on subjective cognitive decline phenotype in a diverse cohort of cognitively normal older adults. Int J Geriatr Psychiatry 2023; 38:e5948. [PMID: 37291739 DOI: 10.1002/gps.5948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 05/20/2023] [Indexed: 06/10/2023]
Abstract
OBJECTIVES Subjective cognitive decline (SCD) is a preclinical stage of AD. White matter hyperintensities (WMH), an MRI marker of cerebral small vessel disease, associate with AD biomarkers and progression. The impact of WMH on SCD phenotype is unclear. METHODS/DESIGN A retrospective, cross-sectional analysis was conducted on a diverse cohort with SCD evaluated at the NYU Alzheimer's Disease Research Center between January 2017 and November 2021 (n = 234). The cohort was dichotomized into none-to-mild (n = 202) and moderate-to-severe (n = 32) WMH. Differences in SCD and neurocognitive assessments were evaluated via Wilcoxon or Fisher exact tests, with p-values adjusted for demographics using multivariable logistic regression. RESULTS Moderate-to-severe WMH participants reported more difficulty with decision making on the Cognitive Change Index (1.5 SD 0.7 vs. 1.2 SD 0.5, p = 0.0187) and worse short-term memory (2.2 SD 0.4 vs. 1.9 SD 0.3, p = 0.0049) and higher SCD burden (9.5 SD 1.6 vs. 8.7 SD 1.7, p = 0.0411) on the Brief Cognitive Rating Scale. Moderate-to-severe WMH participants scored lower on the Mini-Mental State Examination (28.0 SD 1.6 vs. 28.5 SD 1.9, p = 0.0491), and on delayed paragraph (7.2 SD 2.0 vs. 8.8 SD 2.9, p = 0.0222) and designs recall (4.5 SD 2.3 vs. 6.1 SD 2.5, p = 0.0373) of the Guild Memory Test. CONCLUSIONS In SCD, WMH impact overall symptom severity, specifically in executive and memory domains, as well as objective performance on global and domain-specific tests in verbal memory and visual working/associative memory.
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Affiliation(s)
- Aaron Rothstein
- Department of Neurology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Yian Zhang
- Department of Population Health, NYU Grossman School of Medicine, New York, New York, USA
| | - Anthony Q Briggs
- Center for Cognitive Neurology, Department of Neurology, NYU Grossman School of Medicine, New York, New York, USA
| | - Mark A Bernard
- Center for Cognitive Neurology, Department of Neurology, NYU Grossman School of Medicine, New York, New York, USA
| | - Yongzhao Shao
- Department of Population Health, NYU Grossman School of Medicine, New York, New York, USA
| | - Christopher Favilla
- Department of Neurology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Kelly Sloane
- Department of Neurology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Jens Witsch
- Department of Neurology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Arjun V Masurkar
- Center for Cognitive Neurology, Department of Neurology, NYU Grossman School of Medicine, New York, New York, USA
- Neuroscience Institute, NYU Grossman School of Medicine, New York, New York, USA
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18
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Nelson MJ, Moeller S, Seckin M, Rogalski EJ, Mesulam MM, Hurley RS. The eyes speak when the mouth cannot: Using eye movements to interpret omissions in primary progressive aphasia. Neuropsychologia 2023; 184:108530. [PMID: 36906222 PMCID: PMC10166577 DOI: 10.1016/j.neuropsychologia.2023.108530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 03/01/2023] [Accepted: 03/02/2023] [Indexed: 03/12/2023]
Abstract
Though it may seem simple, object naming is a complex multistage process that can be impaired by lesions at various sites of the language network. Individuals with neurodegenerative disorders of language, known as primary progressive aphasias (PPA), have difficulty with naming objects, and instead frequently say "I don't know" or fail to give a vocal response at all, known as an omission. Whereas other types of naming errors (paraphasias) give clues as to which aspects of the language network have been compromised, the mechanisms underlying omissions remain largely unknown. In this study, we used a novel eye tracking approach to probe the cognitive mechanisms of omissions in the logopenic and semantic variants of PPA (PPA-L and PPA-S). For each participant, we identified pictures of common objects (e.g., animals, tools) that they could name aloud correctly, as well as pictures that elicited an omission. In a separate word-to-picture matching task, those pictures appeared as targets embedded among an array with 15 foils. Participants were given a verbal cue and tasked with pointing to the target, while eye movements were monitored. On trials with correctly-named targets, controls and both PPA groups ceased visual search soon after foveating the target. On omission trials, however, the PPA-S group failed to stop searching, and went on to view many foils "post-target". As further indication of impaired word knowledge, gaze of the PPA-S group was subject to excessive "taxonomic capture", such that they spent less time viewing the target and more time viewing related foils on omission trials. In contrast, viewing behavior of the PPA-L group was similar to controls on both correctly-named and omission trials. These results indicate that the mechanisms of omission in PPA differ by variant. In PPA-S, anterior temporal lobe degeneration causes taxonomic blurring, such that words from the same category can no longer be reliably distinguished. In PPA-L, word knowledge remains relatively intact, and omissions instead appear to be caused by downstream factors (e.g., lexical access, phonological encoding). These findings demonstrate that when words fail, eye movements can be particularly informative.
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Affiliation(s)
- M J Nelson
- Mesulam Center for Cognitive Neurology and Alzheimer's Disease, Feinberg School of Medicine, Northwestern University, Chicago, IL USA, 60611; Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, USA; Department of Neurosurgery, School of Medicine, University of Alabama at Birmingham, Birmingham, AL 35249, USA.
| | - S Moeller
- Mesulam Center for Cognitive Neurology and Alzheimer's Disease, Feinberg School of Medicine, Northwestern University, Chicago, IL USA, 60611; Department of Psychology, University of Nevada, Las Vegas, NV 89154, USA
| | - M Seckin
- Mesulam Center for Cognitive Neurology and Alzheimer's Disease, Feinberg School of Medicine, Northwestern University, Chicago, IL USA, 60611; Department of Neurology, Acıbadem Mehmet Ali Aydınlar University School of Medicine, İstanbul, 34684, Turkey
| | - E J Rogalski
- Mesulam Center for Cognitive Neurology and Alzheimer's Disease, Feinberg School of Medicine, Northwestern University, Chicago, IL USA, 60611; Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, USA
| | - M-M Mesulam
- Mesulam Center for Cognitive Neurology and Alzheimer's Disease, Feinberg School of Medicine, Northwestern University, Chicago, IL USA, 60611; Department of Neurology, Feinberg School of Medicine, Northwestern University, USA
| | - R S Hurley
- Mesulam Center for Cognitive Neurology and Alzheimer's Disease, Feinberg School of Medicine, Northwestern University, Chicago, IL USA, 60611; Department of Psychology, Cleveland State University, Cleveland, OH, 44115, USA.
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19
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Sugimoto H, Abe MS, Otake-Matsuura M. Word-producing brain: Contribution of the left anterior middle temporal gyrus to word production patterns in spoken language. Brain Lang 2023; 238:105233. [PMID: 36842390 DOI: 10.1016/j.bandl.2023.105233] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 12/27/2022] [Accepted: 02/01/2023] [Indexed: 06/18/2023]
Abstract
Vocabulary is based on semantic knowledge. The anterior temporal lobe (ATL) has been considered an essential region for processing semantic knowledge; nonetheless, the association between word production patterns and the structural and functional characteristics of the ATL remains unclear. To examine this, we analyzed over one million words from group conversations among community-dwelling older adults and their multimodal magnetic resonance imaging data. A quantitative index for the word production patterns, namely the exponent β of Heaps' law, positively correlated with the left anterior middle temporal gyrus volume. Moreover, β negatively correlated with its resting-state functional connectivity with the precuneus. There was no significant correlation with the diffusion tensor imaging metrics in any fiber. These findings suggest that the vocabulary richness in spoken language depends on the brain status characterized by the semantic knowledge-related brain structure and its activation dissimilarity with the precuneus, a core region of the default mode network.
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Affiliation(s)
- Hikaru Sugimoto
- RIKEN Center for Advanced Intelligence Project, Nihonbashi 1-chome Mitsui Building, 15th floor, 1-4-1 Nihonbashi, Chuo-ku, Tokyo 103-0027, Japan.
| | - Masato S Abe
- RIKEN Center for Advanced Intelligence Project, Nihonbashi 1-chome Mitsui Building, 15th floor, 1-4-1 Nihonbashi, Chuo-ku, Tokyo 103-0027, Japan; Faculty of Culture and Information Science, Doshisha University, 1-3 Tatara Miyakodani, Kyotanabe-shi, Kyoto-fu 610-0394, Japan.
| | - Mihoko Otake-Matsuura
- RIKEN Center for Advanced Intelligence Project, Nihonbashi 1-chome Mitsui Building, 15th floor, 1-4-1 Nihonbashi, Chuo-ku, Tokyo 103-0027, Japan.
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20
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Breining BL, Faria AV, Tippett DC, Stockbridge MD, Meier EL, Caffo B, Hermann O, Friedman R, Meyer A, Tsapkini K, Hillis AE. Association of Regional Atrophy With Naming Decline in Primary Progressive Aphasia. Neurology 2023; 100:e582-e594. [PMID: 36319108 PMCID: PMC9946192 DOI: 10.1212/wnl.0000000000201491] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 09/14/2022] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Primary progressive aphasia (PPA) is a neurodegenerative condition that predominantly impairs language. Most investigations of how focal atrophy affects language consider 1 time point compared with healthy controls. However, true atrophy quantification requires comparing individual brains over time. In this observational cohort study, we identified areas where focal atrophy was associated with contemporaneous decline in naming in the same individuals. METHODS Cross-sectional analyses-related Boston Naming Test (BNT) performance and volume in 22 regions of interests (ROIs) at each time point using Least Absolute Shrinkage and Selection Operator (LASSO) regression. Longitudinal analysis evaluated changes in BNT performance and change in volume in the same ROIs. RESULTS Participants (N = 62; 50% female; mean age = 66.8 ± 7.4 years) with PPA completed the BNT and MRI twice (mean = 343.9 ± 209.0 days apart). In cross-sectional left inferior frontal gyrus pars opercularis, superior temporal pole, middle temporal gyrus, and inferior temporal gyrus were identified as critical for naming at all time points. Longitudinal analysis revealed that increasing atrophy in the left supramarginal gyrus and middle temporal pole predicted greater naming decline, as did female sex and longer intervals between time points. DISCUSSION Although cross-sectional analyses identified classic language areas that were consistently related to poor performance at multiple time points, it was not increasing atrophy in these areas that lead to further decline: longitudinal analysis of each person's atrophy over time instead identified nearby but distinct regions where increased atrophy was related to decreasing performance. The results demonstrate that directly examining atrophy (in each individual) over time furthers understanding of decline in PPA and reveal the importance of left supramarginal gyrus and middle temporal pole in maintaining naming when areas normally critical for language degenerate. The novel results provide insight into how the underlying disease progresses to result in the clinical decline in naming, the deficit most common among all 3 PPA variants.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Argye Elizabeth Hillis
- From the Johns Hopkins University School of Medicine (B.L.B., A.V.F., D.C.T., M.D.S., E.L.M., O.H., K.T., A.E.H.), Baltimore, MD; Johns Hopkins University (B.C.), Bloomberg School of Public Health, Baltimore, MD; and Georgetown University (R.F., A.M.), Washington, DC.
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21
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Vignaroli F, Mele A, Tondo G, De Giorgis V, Manfredi M, Comi C, Mazzini L, De Marchi F. The Need for Biomarkers in the ALS-FTD Spectrum: A Clinical Point of View on the Role of Proteomics. Proteomes 2023; 11:proteomes11010001. [PMID: 36648959 PMCID: PMC9844364 DOI: 10.3390/proteomes11010001] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/30/2022] [Accepted: 01/04/2023] [Indexed: 01/11/2023] Open
Abstract
Frontotemporal dementia (FTD) and amyotrophic lateral sclerosis (ALS) are severely debilitating and progressive neurodegenerative disorders. A distinctive pathological feature of several neurodegenerative diseases, including ALS and FTD, is the deposition of aberrant protein inclusions in neuronal cells, which leads to cellular dysfunction and neuronal damage and loss. Despite this, to date, the biological process behind developing these protein inclusions must be better clarified, making the development of disease-modifying treatment impossible until this is done. Proteomics is a powerful tool to characterize the expression, structure, functions, interactions, and modifications of proteins of tissue and biological fluid, including plasma, serum, and cerebrospinal fluid. This protein-profiling characterization aims to identify disease-specific protein alteration or specific pathology-based mechanisms which may be used as markers of these conditions. Our narrative review aims to highlight the need for biomarkers and the potential use of proteomics in clinical practice for ALS-FTD spectrum disorders, considering the emerging rationale in proteomics for new drug development. Certainly, new data will emerge in the near future in this regard and support clinicians in the development of personalized medicine.
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Affiliation(s)
| | - Angelica Mele
- Neurology Unit, Maggiore della Carità Hospital, 28100 Novara, Italy
| | - Giacomo Tondo
- Department of Neurology, S. Andrea Hospital, University of Piemonte Orientale, 13100 Vercelli, Italy
| | - Veronica De Giorgis
- Department of Translational Medicine, University of Piemonte Orientale, 28100 Novara, Italy
- Center for Translational Research and Autoimmune and Allergic Diseases (CAAD), University of Piemonte Orientale, 28100 Novara, Italy
| | - Marcello Manfredi
- Department of Translational Medicine, University of Piemonte Orientale, 28100 Novara, Italy
- Center for Translational Research and Autoimmune and Allergic Diseases (CAAD), University of Piemonte Orientale, 28100 Novara, Italy
| | - Cristoforo Comi
- Department of Neurology, S. Andrea Hospital, University of Piemonte Orientale, 13100 Vercelli, Italy
- Department of Translational Medicine, University of Piemonte Orientale, 28100 Novara, Italy
| | - Letizia Mazzini
- Neurology Unit, Maggiore della Carità Hospital, 28100 Novara, Italy
- Department of Translational Medicine, University of Piemonte Orientale, 28100 Novara, Italy
| | - Fabiola De Marchi
- Neurology Unit, Maggiore della Carità Hospital, 28100 Novara, Italy
- Department of Translational Medicine, University of Piemonte Orientale, 28100 Novara, Italy
- Correspondence: ; Tel.: +39-0321-3733962
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22
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Abstract
Following prolonged neglect during the formative decades of behavioural neurology, the temporopolar region has become a site of vibrant research on the neurobiology of cognition and conduct. This turnaround can be attributed to increasing recognition of neurodegenerative diseases that target temporopolar regions for peak destruction. The resultant syndromes include behavioural dementia, associative agnosia, semantic forms of primary progressive aphasia and semantic dementia. Clinicopathological correlations show that object naming and word comprehension are critically dependent on the language-dominant (usually left) temporopolar region, whereas behavioural control and non-verbal object recognition display a more bilateral representation with a rightward bias. Neuroanatomical experiments in macaques and neuroimaging in humans show that the temporoparietal region sits at the confluence of auditory, visual and limbic streams of processing at the downstream (deep) pole of the 'what' pathway. The functional neuroanatomy of this region revolves around three axes, an anterograde horizontal axis from unimodal to heteromodal and paralimbic cortex; a radial axis where visual (ventral), auditory (dorsal) and paralimbic (medial) territories encircle temporopolar cortex and display hemispheric asymmetry; and a vertical depth-of-processing axis for the associative elaboration of words, objects and interoceptive states. One function of this neural matrix is to support the transformation of object and word representations from unimodal percepts to multimodal concepts. The underlying process is likely to start at canonical gateways that successively lead to generic (superordinate), specific (basic) and unique levels of recognition. A first sign of left temporopolar dysfunction takes the form of taxonomic blurring where boundaries among categories are preserved but not boundaries among exemplars of a category. Semantic paraphasias and coordinate errors in word-picture verification tests are consequences of this phenomenon. Eventually, boundaries among categories are also blurred and comprehension impairments become more profound. The medial temporopolar region belongs to the amygdalocentric component of the limbic system and stands to integrate exteroceptive information with interoceptive states underlying social interactions. Review of the pertinent literature shows that word comprehension and conduct impairments caused by temporopolar strokes and temporal lobectomy are far less severe than those seen in temporopolar atrophies. One explanation for this unexpected discrepancy invokes the miswiring of residual temporopolar neurons during the many years of indolently progressive neurodegeneration. According to this hypothesis, the temporopolar regions become not only dysfunctional but also sources of aberrant outputs that interfere with the function of areas elsewhere in the language and paralimbic networks, a juxtaposition not seen in lobectomy or stroke.
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Affiliation(s)
- M Marsel Mesulam
- Mesulam Center for Cognitive Neurology and Alzheimer's Disease, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
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23
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Ramanan S, El-Omar H, Roquet D, Ahmed RM, Hodges JR, Piguet O, Lambon Ralph MA, Irish M. Mapping behavioural, cognitive and affective transdiagnostic dimensions in frontotemporal dementia. Brain Commun 2023; 5:fcac344. [PMID: 36687395 PMCID: PMC9847565 DOI: 10.1093/braincomms/fcac344] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 09/26/2022] [Accepted: 01/03/2023] [Indexed: 01/09/2023] Open
Abstract
Two common clinical variants of frontotemporal dementia are the behavioural variant frontotemporal dementia, presenting with behavioural and personality changes attributable to prefrontal atrophy, and semantic dementia, displaying early semantic dysfunction primarily due to anterior temporal degeneration. Despite representing independent diagnostic entities, mounting evidence indicates overlapping cognitive-behavioural profiles in these syndromes, particularly with disease progression. Why such overlap occurs remains unclear. Understanding the nature of this overlap, however, is essential to improve early diagnosis, characterization and management of those affected. Here, we explored common cognitive-behavioural and neural mechanisms contributing to heterogeneous frontotemporal dementia presentations, irrespective of clinical diagnosis. This transdiagnostic approach allowed us to ascertain whether symptoms not currently considered core to these two syndromes are present in a significant proportion of cases and to explore the neural basis of clinical heterogeneity. Sixty-two frontotemporal dementia patients (31 behavioural variant frontotemporal dementia and 31 semantic dementia) underwent comprehensive neuropsychological, behavioural and structural neuroimaging assessments. Orthogonally rotated principal component analysis of neuropsychological and behavioural data uncovered eight statistically independent factors explaining the majority of cognitive-behavioural performance variation in behavioural variant frontotemporal dementia and semantic dementia. These factors included Behavioural changes, Semantic dysfunction, General Cognition, Executive function, Initiation, Disinhibition, Visuospatial function and Affective changes. Marked individual-level overlap between behavioural variant frontotemporal dementia and semantic dementia was evident on the Behavioural changes, General Cognition, Initiation, Disinhibition and Affective changes factors. Compared to behavioural variant frontotemporal dementia, semantic dementia patients displayed disproportionate impairment on the Semantic dysfunction factor, whereas greater impairment on Executive and Visuospatial function factors was noted in behavioural variant frontotemporal dementia. Both patient groups showed comparable magnitude of atrophy to frontal regions, whereas severe temporal lobe atrophy was characteristic of semantic dementia. Whole-brain voxel-based morphometry correlations with emergent factors revealed associations between fronto-insular and striatal grey matter changes with Behavioural, Executive and Initiation factor performance, bilateral temporal atrophy with Semantic dysfunction factor scores, parietal-subcortical regions with General Cognitive performance and ventral temporal atrophy associated with Visuospatial factor scores. Together, these findings indicate that cognitive-behavioural overlap (i) occurs systematically in frontotemporal dementia; (ii) varies in a graded manner between individuals and (iii) is associated with degeneration of different neural systems. Our findings suggest that phenotypic heterogeneity in frontotemporal dementia syndromes can be captured along continuous, multidimensional spectra of cognitive-behavioural changes. This has implications for the diagnosis of both syndromes amidst overlapping features as well as the design of symptomatic treatments applicable to multiple syndromes.
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Affiliation(s)
- Siddharth Ramanan
- Medical Research Council Cognition and Brain Sciences Unit, The University of Cambridge, Cambridge CB3 1AU, UK
- Brain and Mind Centre, The University of Sydney, Sydney, NSW 2050, Australia
- School of Psychology, The University of Sydney, Sydney, NSW 2050, Australia
| | - Hashim El-Omar
- Brain and Mind Centre, The University of Sydney, Sydney, NSW 2050, Australia
| | - Daniel Roquet
- Brain and Mind Centre, The University of Sydney, Sydney, NSW 2050, Australia
- School of Psychology, The University of Sydney, Sydney, NSW 2050, Australia
| | - Rebekah M Ahmed
- Brain and Mind Centre, The University of Sydney, Sydney, NSW 2050, Australia
- Memory and Cognition Clinic, Department of Clinical Neurosciences, Royal Prince Alfred Hospital, Sydney, NSW 2050, Australia
| | - John R Hodges
- Brain and Mind Centre, The University of Sydney, Sydney, NSW 2050, Australia
- School of Psychology, The University of Sydney, Sydney, NSW 2050, Australia
- School of Medical Sciences, The University of Sydney, Sydney, NSW 2050, Australia
| | - Olivier Piguet
- Brain and Mind Centre, The University of Sydney, Sydney, NSW 2050, Australia
- School of Psychology, The University of Sydney, Sydney, NSW 2050, Australia
| | - Matthew A Lambon Ralph
- Medical Research Council Cognition and Brain Sciences Unit, The University of Cambridge, Cambridge CB3 1AU, UK
| | - Muireann Irish
- Brain and Mind Centre, The University of Sydney, Sydney, NSW 2050, Australia
- School of Psychology, The University of Sydney, Sydney, NSW 2050, Australia
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24
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Che XQ, Lin GZ, Liu XH, Wang G, Zhao QH, Ren RJ. Genetic and Neuroimaging Analysis of SIGMAR1 for Frontotemporal Dementia. J Alzheimers Dis 2023; 95:469-475. [PMID: 37545231 DOI: 10.3233/jad-221195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
BACKGROUND Recently, Sigma nonopioid intracellular receptor 1 (SIGMAR1) variants have been shown harboring C9orf72 pathogenic repeat expansions in some frontotemporal dementia (FTD) cases. However, no SIGMAR1 genotype analysis has been reported in a cohort absent of C9orf72 pathogenic repeat expansions to date. OBJECTIVE The present study investigated the contribution of SIGMAR1 independent of C9orf72 gene status to FTD spectrum syndromes. METHODS We directly sequencing the entire coding region and a minimum of 50 bp from each of the flanking introns of SIGMAR1 gene in 82 sporadic FTD patients (female: male = 42 : 40) and 417 controls. For the patient carrying SIGMAR1 variant, a follow-up 3T MR imaging was performed in the study. RESULTS Gene sequencing of SIGMAR1 revealed a rare 3'UTR nucleotide variation rs192856872 in a male patient with semantic dementia independent of C9orf72 gene status. The MR imaging showed asymmetrical atrophy in the anterior temporal lobes and the degeneration extends caudally into the posterior temporal lobes as the disease progresses. ESEFinder analysis showed new SRSF1 and SRSF1-IgM-BRCA1 binding sites with significant scores, which is predicted to affect normal splicing. CONCLUSION We found a novel SIGMAR1 variant independent of C9orf72 gene status associated with semantic dementia phenotype.
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Affiliation(s)
- Xiang-Qian Che
- Department of Neurology & Neuroscience Institute, Ruijin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Guo-Zhen Lin
- Department of Psychiatry, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiao-Hong Liu
- Department of Neurology, Shanghai Putuo District People's Hospital, Shanghai, China
| | - Gang Wang
- Department of Neurology & Neuroscience Institute, Ruijin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qian-Hua Zhao
- Department of Neurology, Huashan Hospital, Fudan University, Shanghai, China
- MOE Frontiers Center for Brain Science, Fudan University, Shanghai, China
| | - Ru-Jing Ren
- Department of Neurology & Neuroscience Institute, Ruijin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
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25
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Koros C, Beratis I, Matsi S, Bougea A, Bonakis A, Papatriantafyllou I, Angelopoulou E, Kapaki E, Stefanis L, Papageorgiou SG. Prosopagnosia, Other Specific Cognitive Deficits, and Behavioral Symptoms: Comparison between Right Temporal and Behavioral Variant of Frontotemporal Dementia. Vision (Basel) 2022; 6:vision6040075. [PMID: 36548937 PMCID: PMC9781966 DOI: 10.3390/vision6040075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/03/2022] [Accepted: 12/09/2022] [Indexed: 12/15/2022]
Abstract
Right temporal variant of frontotemporal dementia (rtv-FTD) represents an uncommon and recently described frontotemporal dementia (FTD) entity presenting with symptoms in many ways comparable to those of the frontal or behavioral variant of FTD (bv-FTD). The aims of this study were to explore the timing of cognitive and behavioral symptoms of rtv-FTD, and to compare the distinct cognitive deficits including prosopagnosia and behavioral symptoms of rtv-FTD patients with those observed in bv-FTD patients. We reviewed the records of 105 patients clinically diagnosed with FTD. A total of 7 patients (5 men/2 women) with FTD and marked right temporal atrophy in magnetic resonance imaging (MRI) were detected. Clinical features were compared with those observed in a group of 22 age-matched patients (16 men/6 women) with FTD and predominant frontal lobe atrophy. The main presenting symptoms of rtv-FTD were prosopagnosia, apathy, and episodic memory impairment. In contrast, social awkwardness and compulsive behaviors were dominant in later stages of the disease together with disinhibition and loss of insight with a marked personality change. Although the cognitive and behavioral profiles of patients with right temporal or frontal lobes atrophy present substantial similarities, each subtype has a number of distinct characteristics. It appears that prosopagnosia, obsessive behaviors, and psychotic symptoms are more prominent in rtv-FTD patients.
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Affiliation(s)
- Christos Koros
- 1st Department of Neurology, Eginition Hospital, Medical School, National and Kapodistrian University of Athens, 11528 Athens, Greece; (C.K.); (I.B.); (S.M.); (A.B.); (I.P.); (E.K.); (L.S.); (S.G.P.)
| | - Ion Beratis
- 1st Department of Neurology, Eginition Hospital, Medical School, National and Kapodistrian University of Athens, 11528 Athens, Greece; (C.K.); (I.B.); (S.M.); (A.B.); (I.P.); (E.K.); (L.S.); (S.G.P.)
- Deree-The American College of Greece, 15342 Athens, Greece
| | - Stavroula Matsi
- 1st Department of Neurology, Eginition Hospital, Medical School, National and Kapodistrian University of Athens, 11528 Athens, Greece; (C.K.); (I.B.); (S.M.); (A.B.); (I.P.); (E.K.); (L.S.); (S.G.P.)
| | - Anastasia Bougea
- 1st Department of Neurology, Eginition Hospital, Medical School, National and Kapodistrian University of Athens, 11528 Athens, Greece; (C.K.); (I.B.); (S.M.); (A.B.); (I.P.); (E.K.); (L.S.); (S.G.P.)
| | - Anastasios Bonakis
- 2nd Department of Neurology, Attikon Hospital, Medical School, National and Kapodistrian University of Athens, 12462 Athens, Greece;
| | - Ioannis Papatriantafyllou
- 1st Department of Neurology, Eginition Hospital, Medical School, National and Kapodistrian University of Athens, 11528 Athens, Greece; (C.K.); (I.B.); (S.M.); (A.B.); (I.P.); (E.K.); (L.S.); (S.G.P.)
| | - Efthalia Angelopoulou
- 1st Department of Neurology, Eginition Hospital, Medical School, National and Kapodistrian University of Athens, 11528 Athens, Greece; (C.K.); (I.B.); (S.M.); (A.B.); (I.P.); (E.K.); (L.S.); (S.G.P.)
- Correspondence:
| | - Elisabeth Kapaki
- 1st Department of Neurology, Eginition Hospital, Medical School, National and Kapodistrian University of Athens, 11528 Athens, Greece; (C.K.); (I.B.); (S.M.); (A.B.); (I.P.); (E.K.); (L.S.); (S.G.P.)
| | - Leonidas Stefanis
- 1st Department of Neurology, Eginition Hospital, Medical School, National and Kapodistrian University of Athens, 11528 Athens, Greece; (C.K.); (I.B.); (S.M.); (A.B.); (I.P.); (E.K.); (L.S.); (S.G.P.)
| | - Sokratis G. Papageorgiou
- 1st Department of Neurology, Eginition Hospital, Medical School, National and Kapodistrian University of Athens, 11528 Athens, Greece; (C.K.); (I.B.); (S.M.); (A.B.); (I.P.); (E.K.); (L.S.); (S.G.P.)
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26
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Younes K, Borghesani V, Montembeault M, Spina S, Mandelli ML, Welch AE, Weis E, Callahan P, Elahi FM, Hua AY, Perry DC, Karydas A, Geschwind D, Huang E, Grinberg LT, Kramer JH, Boxer AL, Rabinovici GD, Rosen HJ, Seeley WW, Miller ZA, Miller BL, Sturm VE, Rankin KP, Gorno-Tempini ML. Right temporal degeneration and socioemotional semantics: semantic behavioural variant frontotemporal dementia. Brain 2022; 145:4080-4096. [PMID: 35731122 PMCID: PMC10200288 DOI: 10.1093/brain/awac217] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 04/28/2022] [Accepted: 05/27/2022] [Indexed: 02/05/2023] Open
Abstract
Focal anterior temporal lobe degeneration often preferentially affects the left or right hemisphere. While patients with left-predominant anterior temporal lobe atrophy show severe anomia and verbal semantic deficits and meet criteria for semantic variant primary progressive aphasia and semantic dementia, patients with early right anterior temporal lobe atrophy are more difficult to diagnose as their symptoms are less well understood. Focal right anterior temporal lobe atrophy is associated with prominent emotional and behavioural changes, and patients often meet, or go on to meet, criteria for behavioural variant frontotemporal dementia. Uncertainty around early symptoms and absence of an overarching clinico-anatomical framework continue to hinder proper diagnosis and care of patients with right anterior temporal lobe disease. Here, we examine a large, well-characterized, longitudinal cohort of patients with right anterior temporal lobe-predominant degeneration and propose new criteria and nosology. We identified individuals from our database with a clinical diagnosis of behavioural variant frontotemporal dementia or semantic variant primary progressive aphasia and a structural MRI (n = 478). On the basis of neuroimaging criteria, we defined three patient groups: right anterior temporal lobe-predominant atrophy with relative sparing of the frontal lobes (n = 46), frontal-predominant atrophy with relative sparing of the right anterior temporal lobe (n = 79) and left-predominant anterior temporal lobe-predominant atrophy with relative sparing of the frontal lobes (n = 75). We compared the clinical, neuropsychological, genetic and pathological profiles of these groups. In the right anterior temporal lobe-predominant group, the earliest symptoms were loss of empathy (27%), person-specific semantic impairment (23%) and complex compulsions and rigid thought process (18%). On testing, this group exhibited greater impairments in Emotional Theory of Mind, recognition of famous people (from names and faces) and facial affect naming (despite preserved face perception) than the frontal- and left-predominant anterior temporal lobe-predominant groups. The clinical symptoms in the first 3 years of the disease alone were highly sensitive (81%) and specific (84%) differentiating right anterior temporal lobe-predominant from frontal-predominant groups. Frontotemporal lobar degeneration-transactive response DNA binding protein (84%) was the most common pathology of the right anterior temporal lobe-predominant group. Right anterior temporal lobe-predominant degeneration is characterized by early loss of empathy and person-specific knowledge, deficits that are caused by progressive decline in semantic memory for concepts of socioemotional relevance. Guided by our results, we outline new diagnostic criteria and propose the name, 'semantic behavioural variant frontotemporal dementia', which highlights the underlying cognitive mechanism and the predominant symptomatology. These diagnostic criteria will facilitate early identification and care of patients with early, focal right anterior temporal lobe degeneration as well as in vivo prediction of frontotemporal lobar degeneration-transactive response DNA binding protein pathology.
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Affiliation(s)
- Kyan Younes
- Memory and Aging Center, Department of Neurology, UCSF Weill Institute for Neurosciences, University of California, San Francisco, CA 94158, USA
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA 94304, USA
| | - Valentina Borghesani
- Memory and Aging Center, Department of Neurology, UCSF Weill Institute for Neurosciences, University of California, San Francisco, CA 94158, USA
| | - Maxime Montembeault
- Memory and Aging Center, Department of Neurology, UCSF Weill Institute for Neurosciences, University of California, San Francisco, CA 94158, USA
| | - Salvatore Spina
- Memory and Aging Center, Department of Neurology, UCSF Weill Institute for Neurosciences, University of California, San Francisco, CA 94158, USA
| | - Maria Luisa Mandelli
- Memory and Aging Center, Department of Neurology, UCSF Weill Institute for Neurosciences, University of California, San Francisco, CA 94158, USA
| | - Ariane E Welch
- Memory and Aging Center, Department of Neurology, UCSF Weill Institute for Neurosciences, University of California, San Francisco, CA 94158, USA
| | - Elizabeth Weis
- Memory and Aging Center, Department of Neurology, UCSF Weill Institute for Neurosciences, University of California, San Francisco, CA 94158, USA
| | - Patrick Callahan
- Memory and Aging Center, Department of Neurology, UCSF Weill Institute for Neurosciences, University of California, San Francisco, CA 94158, USA
| | - Fanny M Elahi
- Memory and Aging Center, Department of Neurology, UCSF Weill Institute for Neurosciences, University of California, San Francisco, CA 94158, USA
| | - Alice Y Hua
- Memory and Aging Center, Department of Neurology, UCSF Weill Institute for Neurosciences, University of California, San Francisco, CA 94158, USA
| | - David C Perry
- Memory and Aging Center, Department of Neurology, UCSF Weill Institute for Neurosciences, University of California, San Francisco, CA 94158, USA
| | - Anna Karydas
- Memory and Aging Center, Department of Neurology, UCSF Weill Institute for Neurosciences, University of California, San Francisco, CA 94158, USA
| | - Daniel Geschwind
- Neurogenetics Program, Department of Neurology and Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine, University of California, Los Angeles, CA 90024, USA
| | - Eric Huang
- Department of Pathology, University of California, San Francisco, CA 94143, USA
| | - Lea T Grinberg
- Memory and Aging Center, Department of Neurology, UCSF Weill Institute for Neurosciences, University of California, San Francisco, CA 94158, USA
- Department of Pathology, University of California, San Francisco, CA 94143, USA
| | - Joel H Kramer
- Memory and Aging Center, Department of Neurology, UCSF Weill Institute for Neurosciences, University of California, San Francisco, CA 94158, USA
| | - Adam L Boxer
- Memory and Aging Center, Department of Neurology, UCSF Weill Institute for Neurosciences, University of California, San Francisco, CA 94158, USA
| | - Gil D Rabinovici
- Memory and Aging Center, Department of Neurology, UCSF Weill Institute for Neurosciences, University of California, San Francisco, CA 94158, USA
| | - Howard J Rosen
- Memory and Aging Center, Department of Neurology, UCSF Weill Institute for Neurosciences, University of California, San Francisco, CA 94158, USA
| | - William W Seeley
- Memory and Aging Center, Department of Neurology, UCSF Weill Institute for Neurosciences, University of California, San Francisco, CA 94158, USA
- Department of Pathology, University of California, San Francisco, CA 94143, USA
| | - Zachary A Miller
- Memory and Aging Center, Department of Neurology, UCSF Weill Institute for Neurosciences, University of California, San Francisco, CA 94158, USA
| | - Bruce L Miller
- Memory and Aging Center, Department of Neurology, UCSF Weill Institute for Neurosciences, University of California, San Francisco, CA 94158, USA
| | - Virginia E Sturm
- Memory and Aging Center, Department of Neurology, UCSF Weill Institute for Neurosciences, University of California, San Francisco, CA 94158, USA
| | - Katherine P Rankin
- Memory and Aging Center, Department of Neurology, UCSF Weill Institute for Neurosciences, University of California, San Francisco, CA 94158, USA
| | - Maria Luisa Gorno-Tempini
- Memory and Aging Center, Department of Neurology, UCSF Weill Institute for Neurosciences, University of California, San Francisco, CA 94158, USA
- Dyslexia Center, University of California, San Francisco, CA 94158, USA
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27
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Snowden JS. Changing perspectives on frontotemporal dementia: A review. J Neuropsychol 2022. [DOI: 10.1111/jnp.12297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 10/04/2022] [Accepted: 10/05/2022] [Indexed: 11/05/2022]
Affiliation(s)
- Julie S. Snowden
- Cerebral Function Unit, Manchester Centre for Neurosciences Salford Royal NHS Foundation Trust Salford UK
- Division of Neuroscience & Experimental Psychology School of Biological Sciences, University of Manchester Manchester UK
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Farahibozorg SR, Henson RN, Woollams AM, Hauk O. Distinct roles for the anterior temporal lobe and angular gyrus in the spatiotemporal cortical semantic network. Cereb Cortex 2022; 32:4549-4564. [PMID: 35094061 PMCID: PMC9574238 DOI: 10.1093/cercor/bhab501] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 11/13/2021] [Accepted: 11/14/2021] [Indexed: 11/30/2022] Open
Abstract
Semantic knowledge is supported by numerous brain regions, but the spatiotemporal configuration of the network that links these areas remains an open question. The hub-and-spokes model posits that a central semantic hub coordinates this network. In this study, we explored distinct aspects that define a semantic hub, as reflected in the spatiotemporal modulation of neural activity and connectivity by semantic variables, from the earliest stages of semantic processing. We used source-reconstructed electro/magnetoencephalography, and investigated the concreteness contrast across three tasks. In a whole-cortex analysis, the left anterior temporal lobe (ATL) was the only area that showed modulation of evoked brain activity from 100 ms post-stimulus. Furthermore, using Dynamic Causal Modeling of the evoked responses, we investigated effective connectivity amongst the candidate semantic hub regions, that is, left ATL, supramarginal/angular gyrus (SMG/AG), middle temporal gyrus, and inferior frontal gyrus. We found that models with a single semantic hub showed the highest Bayesian evidence, and the hub region was found to change from ATL (within 250 ms) to SMG/AG (within 450 ms) over time. Our results support a single semantic hub view, with ATL showing sustained modulation of neural activity by semantics, and both ATL and AG underlying connectivity depending on the stage of semantic processing.
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Affiliation(s)
- Seyedeh-Rezvan Farahibozorg
- MRC Cognition and Brain Sciences Unit, University of Cambridge, Cambridge, CB2 7EF, UK.,Wellcome Centre for Integrative Neuroimaging, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, OX3 9DU, UK
| | - Richard N Henson
- MRC Cognition and Brain Sciences Unit, University of Cambridge, Cambridge, CB2 7EF, UK.,Department of Psychiatry, University of Cambridge, Cambridge, CB2 0SZ, UK
| | - Anna M Woollams
- Neuroscience and Aphasia Research Unit, School of Biological Sciences, University of Manchester, Manchester, M13 9PL, UK
| | - Olaf Hauk
- MRC Cognition and Brain Sciences Unit, University of Cambridge, Cambridge, CB2 7EF, UK
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29
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Campos DF, Rocca AR, Caixeta LF. Right Temporal Lobe Variant of Frontotemporal Dementia: Systematic Review. Alzheimer Dis Assoc Disord 2022; 36:272-279. [PMID: 35867973 DOI: 10.1097/wad.0000000000000511] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 04/30/2022] [Indexed: 11/25/2022]
Abstract
Frontotemporal dementia corresponds to a heterogenous group of syndromes characterized by progressive changes in behavior and/or language. Approximately 30% of patients with primary progressive aphasia, semantic variant (semantic dementia), present with atrophy in the right cerebral hemisphere, in a rare clinical condition called right temporal variant of frontotemporal dementia (rtvFTD). The objective of the study is to present the main demographic, clinical, neuropsychological, neuroimaging, and pathologic characteristics of rtvFTD patients. A systematic review of the literature was carried out in the PubMed, LILACS, and SCIELO databases between January and March 2022. After the evaluation process, 41 articles were selected, published between 1993 and 2021. We found that rtvFTD presents with severe and progressive prosopagnosia (related to anterior temporal lobe injury) associated with behavioral symptoms-desinibition (51%), apathy (39%), obsessive-compulsive symptoms (37%), changes in eating habits (33%), and depression (28%), which is different from semantic dementia. The most common pathologic pattern is TDP-43, type C. This field of knowledge has few studies (mainly reports and case series) and heterogenous nomenclature, which is a limitation. A multinational longitudinal registry of people with rtvFTD, with standardized assessment and description of symptoms, is necessary to elucidate the characteristics of this entity.
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Affiliation(s)
- Danilo F Campos
- Center for Cognitive Neurology and Neuropsychiatry, Federal University of Goiás
| | - Andrey R Rocca
- Center for Cognitive Neurology and Neuropsychiatry, Federal University of Goiás
| | - Leonardo F Caixeta
- Center for Cognitive Neurology and Neuropsychiatry, Federal University of Goiás
- Department of Neurology, Federal University of Goiás School of Medicine, Goiânia, Goiás, Brazil
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30
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Mulder-Heijstra MMP, Jokel RR, Chertkow HH, Conn DDK, Mah LL. Primary Progressive Aphasia Presenting With Neuropsychiatric Symptoms. J Geriatr Psychiatry Neurol 2022; 35:574-579. [PMID: 34382469 DOI: 10.1177/08919887211036189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
We describe a case of primary progressive aphasia (PPA) with an underlying neurodegenerative motor disorder (possible ALS or PSP), presenting with symptoms of irritability and frustration, that were misdiagnosed and treated as a primary psychiatric disorder, i.e. depression. PPA is a rare neurodegenerative disorder characterized by insidious onset and gradual progression of speech and language impairment. We emphasize that PPA can initially masquerade as or be accompanied by neuropsychiatric symptoms potentially leading to misdiagnosis. Most prevalent neuropsychiatric symptoms reported in the PPA literature are agitation, depression, anxiety, apathy, irritability, abnormal appetite and disinhibition. To ensure early diagnosis of PPA, if a patient presents with new psychiatric symptoms accompanied by new onset speech and/or language impairment, referral to a specialist (i.e., neurologist and/or speech-language pathologist) is recommended.
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Affiliation(s)
- Mirjam M P Mulder-Heijstra
- Rotman Research Institute, 63671Baycrest Health Sciences, Toronto, Ontario, Canada.,GGZ Rivierduinen, Leiden, the Netherlands
| | - Regina R Jokel
- Rotman Research Institute, 63671Baycrest Health Sciences, Toronto, Ontario, Canada.,Department of Speech-Language Pathology, University of Toronto, Toronto, Canada
| | - Howard H Chertkow
- Rotman Research Institute, 63671Baycrest Health Sciences, Toronto, Ontario, Canada.,Department of Medicine (Neurology), University of Toronto, Toronto, Ontario, Canada
| | - David D K Conn
- Baycrest Centre and Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
| | - Linda L Mah
- Rotman Research Institute, 63671Baycrest Health Sciences, Toronto, Ontario, Canada.,Department of Psychiatry, Baycrest, Toronto, Ontario, Canada.,Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
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31
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Labek K, Dommes L, Bosch JE, Schurz M, Viviani R, Buchheim A. A Short Functional Neuroimaging Assay Using Attachment Scenes to Recruit Neural Correlates of Social Cognition—A Replication Study. Brain Sci 2022; 12:brainsci12070855. [PMID: 35884660 PMCID: PMC9313198 DOI: 10.3390/brainsci12070855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/22/2022] [Accepted: 06/27/2022] [Indexed: 11/22/2022] Open
Abstract
Attachment theory provides a conceptual framework to understand the impact of early child–caregiver experiences, such as loss or separation, on adult functioning and psychopathology. In the current study, scenes from the Adult Attachment Projective Picture System (AAP), a validated, commonly used standardized diagnostic instrument to assess adult attachment representations, were used to develop a short fMRI assay eliciting the neural correlates of encoding of potentially hurtful and threatening social situations such as social losses, rejections or loneliness. Data from healthy participants (N = 19) showed activations in brain areas associated with social cognition and semantic knowledge during exposure to attachment-related scenes compared to control scenes. Extensive activation of the temporal poles was observed, suggesting the use of semantic knowledge for generating social concepts and scripts. This knowledge may underlie our ability to explain and predict social interactions, a specific aspect of theory of mind or mentalization. In this replication study, we verified the effectiveness of a modified fMRI assay to assess the external validity of a previously used imaging paradigm to investigate the processing of emotionally negatively valenced and painful social interactions. Our data confirm the recruitment of brain areas associated with social cognition with our very short neuroimaging assay.
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Affiliation(s)
- Karin Labek
- Institute of Psychology, Faculty of Psychology and Sport Science, University of Innsbruck, 6020 Innsbruck, Austria; (M.S.); (R.V.); (A.B.)
- Correspondence:
| | - Lisa Dommes
- Department of Psychiatry and Psychotherapy III, Ulm University Medical Center, 89075 Ulm, Germany; (L.D.); (J.E.B.)
| | - Julia Eva Bosch
- Department of Psychiatry and Psychotherapy III, Ulm University Medical Center, 89075 Ulm, Germany; (L.D.); (J.E.B.)
| | - Matthias Schurz
- Institute of Psychology, Faculty of Psychology and Sport Science, University of Innsbruck, 6020 Innsbruck, Austria; (M.S.); (R.V.); (A.B.)
| | - Roberto Viviani
- Institute of Psychology, Faculty of Psychology and Sport Science, University of Innsbruck, 6020 Innsbruck, Austria; (M.S.); (R.V.); (A.B.)
- Department of Psychiatry and Psychotherapy III, Ulm University Medical Center, 89075 Ulm, Germany; (L.D.); (J.E.B.)
| | - Anna Buchheim
- Institute of Psychology, Faculty of Psychology and Sport Science, University of Innsbruck, 6020 Innsbruck, Austria; (M.S.); (R.V.); (A.B.)
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Balgova E, Diveica V, Walbrin J, Binney RJ. The role of the ventrolateral anterior temporal lobes in social cognition. Hum Brain Mapp 2022; 43:4589-4608. [PMID: 35716023 PMCID: PMC9491293 DOI: 10.1002/hbm.25976] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 05/27/2022] [Accepted: 05/28/2022] [Indexed: 11/24/2022] Open
Abstract
A key challenge for neurobiological models of social cognition is to elucidate whether brain regions are specialised for that domain. In recent years, discussion surrounding the role of anterior temporal regions epitomises such debates; some argue the anterior temporal lobe (ATL) is part of a domain‐specific network for social processing, while others claim it comprises a domain‐general hub for semantic representation. In the present study, we used ATL‐optimised fMRI to map the contribution of different ATL structures to a variety of paradigms frequently used to probe a crucial social ability, namely ‘theory of mind’ (ToM). Using multiple tasks enables a clearer attribution of activation to ToM as opposed to idiosyncratic features of stimuli. Further, we directly explored whether these same structures are also activated by a non‐social task probing semantic representations. We revealed that common to all of the tasks was activation of a key ventrolateral ATL region that is often invisible to standard fMRI. This constitutes novel evidence in support of the view that the ventrolateral ATL contributes to social cognition via a domain‐general role in semantic processing and against claims of a specialised social function.
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Affiliation(s)
- Eva Balgova
- School of Human and Behavioural Sciences, Bangor University, Gwynedd, Wales, UK
| | - Veronica Diveica
- School of Human and Behavioural Sciences, Bangor University, Gwynedd, Wales, UK
| | - Jon Walbrin
- Faculdade de Psicologia e de Ciências da Educação, Universidade de Coimbra, Portugal
| | - Richard J Binney
- School of Human and Behavioural Sciences, Bangor University, Gwynedd, Wales, UK
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33
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Aamodt EB, Lydersen S, Alnæs D, Schellhorn T, Saltvedt I, Beyer MK, Håberg A. Longitudinal Brain Changes After Stroke and the Association With Cognitive Decline. Front Neurol 2022; 13:856919. [PMID: 35720079 PMCID: PMC9204010 DOI: 10.3389/fneur.2022.856919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 05/16/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundCognitive impairment is common after stroke. So is cortical- and subcortical atrophy, with studies reporting more atrophy in the ipsilesional hemisphere than the contralesional hemisphere. The current study aimed to investigate the longitudinal associations between (I) lateralization of brain atrophy and stroke hemisphere, and (II) cognitive impairment and brain atrophy after stroke. We expected to find that (I) cortical thickness and hippocampal-, thalamic-, and caudate nucleus volumes declined more in the ipsilesional than the contralesional hemisphere up to 36 months after stroke. Furthermore, we predicted that (II) cognitive decline was associated with greater stroke volumes, and with greater cortical thickness and subcortical structural volume atrophy across the 36 months.MethodsStroke survivors from five Norwegian hospitals were included from the multisite-prospective “Norwegian Cognitive Impairment After Stroke” (Nor-COAST) study. Analyses were run with clinical, neuropsychological and structural magnetic resonance imaging (MRI) data from baseline, 18- and 36 months. Cortical thicknesses and subcortical volumes were obtained via FreeSurfer segmentations and stroke lesion volumes were semi-automatically derived using ITK-SNAP. Cognition was measured using MoCA.ResultsFindings from 244 stroke survivors [age = 72.2 (11.3) years, women = 55.7%, stroke severity NIHSS = 4.9 (5.0)] were included at baseline. Of these, 145 (59.4%) had an MRI scan at 18 months and 72 (49.7% of 18 months) at 36 months. Most cortices and subcortices showed a higher ipsi- compared to contralesional atrophy rate, with the effect being more prominent in the right hemisphere. Next, greater degrees of atrophy particularly in the medial temporal lobe after left-sided strokes and larger stroke lesion volumes after right-sided strokes were associated with cognitive decline over time.ConclusionAtrophy in the ipsilesional hemisphere was greater than in the contralesional hemisphere over time. This effect was found to be more prominent in the right hemisphere, pointing to a possible higher resilience to stroke of the left hemisphere. Lastly, greater atrophy of the cortex and subcortex, as well as larger stroke volume, were associated with worse cognition over time and should be included in risk assessments of cognitive decline after stroke.
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Affiliation(s)
- Eva B. Aamodt
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Division of Radiology and Nuclear Medicine, Oslo University Hospital, Oslo, Norway
- *Correspondence: Eva B. Aamodt
| | - Stian Lydersen
- Regional Centre for Child and Youth Mental Health and Child Welfare, Department of Mental Health, NTNU – Norwegian University of Science and Technology, Trondheim, Norway
| | - Dag Alnæs
- Norwegian Centre for Mental Disorders Research (NORMENT), Division of Mental Health and Addiction, Oslo University Hospital and Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Till Schellhorn
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Division of Radiology and Nuclear Medicine, Oslo University Hospital, Oslo, Norway
| | - Ingvild Saltvedt
- Department of Neuromedicine and Movement Science, Faculty of Medicine and Health Science, NTNU – Norwegian University of Science and Technology, Trondheim, Norway
- Department of Geriatrics, Clinic of Medicine, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
| | - Mona K. Beyer
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Division of Radiology and Nuclear Medicine, Oslo University Hospital, Oslo, Norway
| | - Asta Håberg
- Department of Neuromedicine and Movement Science, Faculty of Medicine and Health Science, NTNU – Norwegian University of Science and Technology, Trondheim, Norway
- Department of Radiology and Nuclear Medicine, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
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Tee BL, Lorinda Kwan-Chen LY, Chen TF, Yan CTY, Tsoh J, Lung-Tat Chan A, Wong A, Lo RY, Lu CL, Wang PN, Lee Y, Yang FG, Battistella G, Allen IE, Dronkers NF, Miller BL, Gorno-Tempini ML. Dysgraphia Phenotypes in Native Chinese Speakers With Primary Progressive Aphasia. Neurology 2022; 98:e2245-e2257. [PMID: 35410909 PMCID: PMC9162166 DOI: 10.1212/wnl.0000000000200350] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 02/21/2022] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Most primary progressive aphasia (PPA) literature is based on English language users. Linguistic features that vary from English, such as logographic writing systems, are underinvestigated. The current study characterized the dysgraphia phenotypes of patients with PPA who write in Chinese and investigated their diagnostic utility in classifying PPA variants. METHODS This study recruited 40 participants with PPA and 20 cognitively normal participants from San Francisco, Hong Kong, and Taiwan. We measured dictation accuracy using the Chinese Language Assessment for PPA (CLAP) 60-character orthographic dictation test and examined the occurrence of various writing errors across the study groups. We also performed voxel-based morphometry analysis to identify the gray matter regions correlated with dictation accuracy and prevalence of writing errors. RESULTS All PPA groups produced significantly less accurate writing responses than the control group and no significant differences in dictation accuracy were noted among the PPA variants. With a cut score of 36 out of 60 in the CLAP orthographic dictation task, the test achieved sensitivity and specificity of 90% and 95% in identifying Chinese participants with PPA vs controls. In addition to a character frequency effect, dictation accuracy was affected by homophone density and the number of strokes in semantic variant PPA and logopenic variant PPA groups. Dictation accuracy was correlated with volumetric changes over left ventral temporal cortices, regions known to be critical for orthographic long-term memory. Individuals with semantic variant PPA frequently presented with phonologically plausible errors at lexical level, patients with logopenic variant PPA showed higher preponderance towards visual and stroke errors, and patients with nonfluent/agrammatic variant PPA commonly exhibited compound word and radical errors. The prevalence of phonologically plausible, visual, and compound word errors was negatively correlated with cortical volume over the bilateral temporal regions, left temporo-occipital area, and bilateral orbitofrontal gyri, respectively. DISCUSSION The findings demonstrate the potential role of the orthographic dictation task as a screening tool and PPA classification indicator in Chinese language users. Each PPA variant had specific Chinese dysgraphia phenotypes that vary from those previously reported in English-speaking patients with PPA, highlighting the importance of language diversity in PPA.
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Affiliation(s)
- Boon Lead Tee
- From the Memory and Aging Center (B.L.T., G.B., B.L.M., M.L.G.-T.), Department of Neurology, Dyslexia Center (B.L.T., G.B., M.L.G.-T.), Global Brain Health Institute (B.L.T., M.L.G.-T.), and Department of Epidemiology and Biostatistics (I.E.A.), University of California, San Francisco; Department of Neurology (B.L.T., R.Y.L.), Buddhist Tzu Chi General Hospital, Hualien, Taiwan R.O.C.; Department of Special Education and Counselling (L.Y.L.K.-C.), The Education University of Hong Kong; Department of Neurology (T.-F.C., Y.L.), National Taiwan University Hospital, Taipei, Taiwan R.O.C.; Department of Psychiatry (C.T.Y.Y., J.T.), ShaTin Hospital, Hong Kong; Department of Medicine (C.T.Y.Y., J.T., A.W.), Chinese University of Hong Kong; Department of Medicine (A.L.-T.C.), Queen Elizabeth Hospital, Hong Kong; Department of Neurology (C.L.L.), En Chu Kong Hospital, New Taipei City; Division of General Neurology, Department of Neurological Institute (P.-N.W.), Taipei Veterans General Hospital; School of Medicine (P.-N.W.) and Brain Research Center (P.-N.W.), National Yang-Ming Chiao-Tung University, Taipei, Taiwan R.O.C.; Department of Foreign Languages and Literature (F.G.Y.), National Tsing Hua University, HsinChu, Taiwan R.O.C.; Department of Radiology (F.G.Y.), Graduate School of Dentistry, Osaka University, Japan; Department of Psychology (N.F.D.), University of California, Berkeley; and Department of Neurology (N.F.D.), University of California, Davis.
| | - Li Ying Lorinda Kwan-Chen
- From the Memory and Aging Center (B.L.T., G.B., B.L.M., M.L.G.-T.), Department of Neurology, Dyslexia Center (B.L.T., G.B., M.L.G.-T.), Global Brain Health Institute (B.L.T., M.L.G.-T.), and Department of Epidemiology and Biostatistics (I.E.A.), University of California, San Francisco; Department of Neurology (B.L.T., R.Y.L.), Buddhist Tzu Chi General Hospital, Hualien, Taiwan R.O.C.; Department of Special Education and Counselling (L.Y.L.K.-C.), The Education University of Hong Kong; Department of Neurology (T.-F.C., Y.L.), National Taiwan University Hospital, Taipei, Taiwan R.O.C.; Department of Psychiatry (C.T.Y.Y., J.T.), ShaTin Hospital, Hong Kong; Department of Medicine (C.T.Y.Y., J.T., A.W.), Chinese University of Hong Kong; Department of Medicine (A.L.-T.C.), Queen Elizabeth Hospital, Hong Kong; Department of Neurology (C.L.L.), En Chu Kong Hospital, New Taipei City; Division of General Neurology, Department of Neurological Institute (P.-N.W.), Taipei Veterans General Hospital; School of Medicine (P.-N.W.) and Brain Research Center (P.-N.W.), National Yang-Ming Chiao-Tung University, Taipei, Taiwan R.O.C.; Department of Foreign Languages and Literature (F.G.Y.), National Tsing Hua University, HsinChu, Taiwan R.O.C.; Department of Radiology (F.G.Y.), Graduate School of Dentistry, Osaka University, Japan; Department of Psychology (N.F.D.), University of California, Berkeley; and Department of Neurology (N.F.D.), University of California, Davis
| | - Ta-Fu Chen
- From the Memory and Aging Center (B.L.T., G.B., B.L.M., M.L.G.-T.), Department of Neurology, Dyslexia Center (B.L.T., G.B., M.L.G.-T.), Global Brain Health Institute (B.L.T., M.L.G.-T.), and Department of Epidemiology and Biostatistics (I.E.A.), University of California, San Francisco; Department of Neurology (B.L.T., R.Y.L.), Buddhist Tzu Chi General Hospital, Hualien, Taiwan R.O.C.; Department of Special Education and Counselling (L.Y.L.K.-C.), The Education University of Hong Kong; Department of Neurology (T.-F.C., Y.L.), National Taiwan University Hospital, Taipei, Taiwan R.O.C.; Department of Psychiatry (C.T.Y.Y., J.T.), ShaTin Hospital, Hong Kong; Department of Medicine (C.T.Y.Y., J.T., A.W.), Chinese University of Hong Kong; Department of Medicine (A.L.-T.C.), Queen Elizabeth Hospital, Hong Kong; Department of Neurology (C.L.L.), En Chu Kong Hospital, New Taipei City; Division of General Neurology, Department of Neurological Institute (P.-N.W.), Taipei Veterans General Hospital; School of Medicine (P.-N.W.) and Brain Research Center (P.-N.W.), National Yang-Ming Chiao-Tung University, Taipei, Taiwan R.O.C.; Department of Foreign Languages and Literature (F.G.Y.), National Tsing Hua University, HsinChu, Taiwan R.O.C.; Department of Radiology (F.G.Y.), Graduate School of Dentistry, Osaka University, Japan; Department of Psychology (N.F.D.), University of California, Berkeley; and Department of Neurology (N.F.D.), University of California, Davis
| | - Connie T Y Yan
- From the Memory and Aging Center (B.L.T., G.B., B.L.M., M.L.G.-T.), Department of Neurology, Dyslexia Center (B.L.T., G.B., M.L.G.-T.), Global Brain Health Institute (B.L.T., M.L.G.-T.), and Department of Epidemiology and Biostatistics (I.E.A.), University of California, San Francisco; Department of Neurology (B.L.T., R.Y.L.), Buddhist Tzu Chi General Hospital, Hualien, Taiwan R.O.C.; Department of Special Education and Counselling (L.Y.L.K.-C.), The Education University of Hong Kong; Department of Neurology (T.-F.C., Y.L.), National Taiwan University Hospital, Taipei, Taiwan R.O.C.; Department of Psychiatry (C.T.Y.Y., J.T.), ShaTin Hospital, Hong Kong; Department of Medicine (C.T.Y.Y., J.T., A.W.), Chinese University of Hong Kong; Department of Medicine (A.L.-T.C.), Queen Elizabeth Hospital, Hong Kong; Department of Neurology (C.L.L.), En Chu Kong Hospital, New Taipei City; Division of General Neurology, Department of Neurological Institute (P.-N.W.), Taipei Veterans General Hospital; School of Medicine (P.-N.W.) and Brain Research Center (P.-N.W.), National Yang-Ming Chiao-Tung University, Taipei, Taiwan R.O.C.; Department of Foreign Languages and Literature (F.G.Y.), National Tsing Hua University, HsinChu, Taiwan R.O.C.; Department of Radiology (F.G.Y.), Graduate School of Dentistry, Osaka University, Japan; Department of Psychology (N.F.D.), University of California, Berkeley; and Department of Neurology (N.F.D.), University of California, Davis
| | - Joshua Tsoh
- From the Memory and Aging Center (B.L.T., G.B., B.L.M., M.L.G.-T.), Department of Neurology, Dyslexia Center (B.L.T., G.B., M.L.G.-T.), Global Brain Health Institute (B.L.T., M.L.G.-T.), and Department of Epidemiology and Biostatistics (I.E.A.), University of California, San Francisco; Department of Neurology (B.L.T., R.Y.L.), Buddhist Tzu Chi General Hospital, Hualien, Taiwan R.O.C.; Department of Special Education and Counselling (L.Y.L.K.-C.), The Education University of Hong Kong; Department of Neurology (T.-F.C., Y.L.), National Taiwan University Hospital, Taipei, Taiwan R.O.C.; Department of Psychiatry (C.T.Y.Y., J.T.), ShaTin Hospital, Hong Kong; Department of Medicine (C.T.Y.Y., J.T., A.W.), Chinese University of Hong Kong; Department of Medicine (A.L.-T.C.), Queen Elizabeth Hospital, Hong Kong; Department of Neurology (C.L.L.), En Chu Kong Hospital, New Taipei City; Division of General Neurology, Department of Neurological Institute (P.-N.W.), Taipei Veterans General Hospital; School of Medicine (P.-N.W.) and Brain Research Center (P.-N.W.), National Yang-Ming Chiao-Tung University, Taipei, Taiwan R.O.C.; Department of Foreign Languages and Literature (F.G.Y.), National Tsing Hua University, HsinChu, Taiwan R.O.C.; Department of Radiology (F.G.Y.), Graduate School of Dentistry, Osaka University, Japan; Department of Psychology (N.F.D.), University of California, Berkeley; and Department of Neurology (N.F.D.), University of California, Davis
| | - Andrew Lung-Tat Chan
- From the Memory and Aging Center (B.L.T., G.B., B.L.M., M.L.G.-T.), Department of Neurology, Dyslexia Center (B.L.T., G.B., M.L.G.-T.), Global Brain Health Institute (B.L.T., M.L.G.-T.), and Department of Epidemiology and Biostatistics (I.E.A.), University of California, San Francisco; Department of Neurology (B.L.T., R.Y.L.), Buddhist Tzu Chi General Hospital, Hualien, Taiwan R.O.C.; Department of Special Education and Counselling (L.Y.L.K.-C.), The Education University of Hong Kong; Department of Neurology (T.-F.C., Y.L.), National Taiwan University Hospital, Taipei, Taiwan R.O.C.; Department of Psychiatry (C.T.Y.Y., J.T.), ShaTin Hospital, Hong Kong; Department of Medicine (C.T.Y.Y., J.T., A.W.), Chinese University of Hong Kong; Department of Medicine (A.L.-T.C.), Queen Elizabeth Hospital, Hong Kong; Department of Neurology (C.L.L.), En Chu Kong Hospital, New Taipei City; Division of General Neurology, Department of Neurological Institute (P.-N.W.), Taipei Veterans General Hospital; School of Medicine (P.-N.W.) and Brain Research Center (P.-N.W.), National Yang-Ming Chiao-Tung University, Taipei, Taiwan R.O.C.; Department of Foreign Languages and Literature (F.G.Y.), National Tsing Hua University, HsinChu, Taiwan R.O.C.; Department of Radiology (F.G.Y.), Graduate School of Dentistry, Osaka University, Japan; Department of Psychology (N.F.D.), University of California, Berkeley; and Department of Neurology (N.F.D.), University of California, Davis
| | - Adrian Wong
- From the Memory and Aging Center (B.L.T., G.B., B.L.M., M.L.G.-T.), Department of Neurology, Dyslexia Center (B.L.T., G.B., M.L.G.-T.), Global Brain Health Institute (B.L.T., M.L.G.-T.), and Department of Epidemiology and Biostatistics (I.E.A.), University of California, San Francisco; Department of Neurology (B.L.T., R.Y.L.), Buddhist Tzu Chi General Hospital, Hualien, Taiwan R.O.C.; Department of Special Education and Counselling (L.Y.L.K.-C.), The Education University of Hong Kong; Department of Neurology (T.-F.C., Y.L.), National Taiwan University Hospital, Taipei, Taiwan R.O.C.; Department of Psychiatry (C.T.Y.Y., J.T.), ShaTin Hospital, Hong Kong; Department of Medicine (C.T.Y.Y., J.T., A.W.), Chinese University of Hong Kong; Department of Medicine (A.L.-T.C.), Queen Elizabeth Hospital, Hong Kong; Department of Neurology (C.L.L.), En Chu Kong Hospital, New Taipei City; Division of General Neurology, Department of Neurological Institute (P.-N.W.), Taipei Veterans General Hospital; School of Medicine (P.-N.W.) and Brain Research Center (P.-N.W.), National Yang-Ming Chiao-Tung University, Taipei, Taiwan R.O.C.; Department of Foreign Languages and Literature (F.G.Y.), National Tsing Hua University, HsinChu, Taiwan R.O.C.; Department of Radiology (F.G.Y.), Graduate School of Dentistry, Osaka University, Japan; Department of Psychology (N.F.D.), University of California, Berkeley; and Department of Neurology (N.F.D.), University of California, Davis
| | - Raymond Y Lo
- From the Memory and Aging Center (B.L.T., G.B., B.L.M., M.L.G.-T.), Department of Neurology, Dyslexia Center (B.L.T., G.B., M.L.G.-T.), Global Brain Health Institute (B.L.T., M.L.G.-T.), and Department of Epidemiology and Biostatistics (I.E.A.), University of California, San Francisco; Department of Neurology (B.L.T., R.Y.L.), Buddhist Tzu Chi General Hospital, Hualien, Taiwan R.O.C.; Department of Special Education and Counselling (L.Y.L.K.-C.), The Education University of Hong Kong; Department of Neurology (T.-F.C., Y.L.), National Taiwan University Hospital, Taipei, Taiwan R.O.C.; Department of Psychiatry (C.T.Y.Y., J.T.), ShaTin Hospital, Hong Kong; Department of Medicine (C.T.Y.Y., J.T., A.W.), Chinese University of Hong Kong; Department of Medicine (A.L.-T.C.), Queen Elizabeth Hospital, Hong Kong; Department of Neurology (C.L.L.), En Chu Kong Hospital, New Taipei City; Division of General Neurology, Department of Neurological Institute (P.-N.W.), Taipei Veterans General Hospital; School of Medicine (P.-N.W.) and Brain Research Center (P.-N.W.), National Yang-Ming Chiao-Tung University, Taipei, Taiwan R.O.C.; Department of Foreign Languages and Literature (F.G.Y.), National Tsing Hua University, HsinChu, Taiwan R.O.C.; Department of Radiology (F.G.Y.), Graduate School of Dentistry, Osaka University, Japan; Department of Psychology (N.F.D.), University of California, Berkeley; and Department of Neurology (N.F.D.), University of California, Davis
| | - Chien Long Lu
- From the Memory and Aging Center (B.L.T., G.B., B.L.M., M.L.G.-T.), Department of Neurology, Dyslexia Center (B.L.T., G.B., M.L.G.-T.), Global Brain Health Institute (B.L.T., M.L.G.-T.), and Department of Epidemiology and Biostatistics (I.E.A.), University of California, San Francisco; Department of Neurology (B.L.T., R.Y.L.), Buddhist Tzu Chi General Hospital, Hualien, Taiwan R.O.C.; Department of Special Education and Counselling (L.Y.L.K.-C.), The Education University of Hong Kong; Department of Neurology (T.-F.C., Y.L.), National Taiwan University Hospital, Taipei, Taiwan R.O.C.; Department of Psychiatry (C.T.Y.Y., J.T.), ShaTin Hospital, Hong Kong; Department of Medicine (C.T.Y.Y., J.T., A.W.), Chinese University of Hong Kong; Department of Medicine (A.L.-T.C.), Queen Elizabeth Hospital, Hong Kong; Department of Neurology (C.L.L.), En Chu Kong Hospital, New Taipei City; Division of General Neurology, Department of Neurological Institute (P.-N.W.), Taipei Veterans General Hospital; School of Medicine (P.-N.W.) and Brain Research Center (P.-N.W.), National Yang-Ming Chiao-Tung University, Taipei, Taiwan R.O.C.; Department of Foreign Languages and Literature (F.G.Y.), National Tsing Hua University, HsinChu, Taiwan R.O.C.; Department of Radiology (F.G.Y.), Graduate School of Dentistry, Osaka University, Japan; Department of Psychology (N.F.D.), University of California, Berkeley; and Department of Neurology (N.F.D.), University of California, Davis
| | - Pei-Ning Wang
- From the Memory and Aging Center (B.L.T., G.B., B.L.M., M.L.G.-T.), Department of Neurology, Dyslexia Center (B.L.T., G.B., M.L.G.-T.), Global Brain Health Institute (B.L.T., M.L.G.-T.), and Department of Epidemiology and Biostatistics (I.E.A.), University of California, San Francisco; Department of Neurology (B.L.T., R.Y.L.), Buddhist Tzu Chi General Hospital, Hualien, Taiwan R.O.C.; Department of Special Education and Counselling (L.Y.L.K.-C.), The Education University of Hong Kong; Department of Neurology (T.-F.C., Y.L.), National Taiwan University Hospital, Taipei, Taiwan R.O.C.; Department of Psychiatry (C.T.Y.Y., J.T.), ShaTin Hospital, Hong Kong; Department of Medicine (C.T.Y.Y., J.T., A.W.), Chinese University of Hong Kong; Department of Medicine (A.L.-T.C.), Queen Elizabeth Hospital, Hong Kong; Department of Neurology (C.L.L.), En Chu Kong Hospital, New Taipei City; Division of General Neurology, Department of Neurological Institute (P.-N.W.), Taipei Veterans General Hospital; School of Medicine (P.-N.W.) and Brain Research Center (P.-N.W.), National Yang-Ming Chiao-Tung University, Taipei, Taiwan R.O.C.; Department of Foreign Languages and Literature (F.G.Y.), National Tsing Hua University, HsinChu, Taiwan R.O.C.; Department of Radiology (F.G.Y.), Graduate School of Dentistry, Osaka University, Japan; Department of Psychology (N.F.D.), University of California, Berkeley; and Department of Neurology (N.F.D.), University of California, Davis
| | - YiChen Lee
- From the Memory and Aging Center (B.L.T., G.B., B.L.M., M.L.G.-T.), Department of Neurology, Dyslexia Center (B.L.T., G.B., M.L.G.-T.), Global Brain Health Institute (B.L.T., M.L.G.-T.), and Department of Epidemiology and Biostatistics (I.E.A.), University of California, San Francisco; Department of Neurology (B.L.T., R.Y.L.), Buddhist Tzu Chi General Hospital, Hualien, Taiwan R.O.C.; Department of Special Education and Counselling (L.Y.L.K.-C.), The Education University of Hong Kong; Department of Neurology (T.-F.C., Y.L.), National Taiwan University Hospital, Taipei, Taiwan R.O.C.; Department of Psychiatry (C.T.Y.Y., J.T.), ShaTin Hospital, Hong Kong; Department of Medicine (C.T.Y.Y., J.T., A.W.), Chinese University of Hong Kong; Department of Medicine (A.L.-T.C.), Queen Elizabeth Hospital, Hong Kong; Department of Neurology (C.L.L.), En Chu Kong Hospital, New Taipei City; Division of General Neurology, Department of Neurological Institute (P.-N.W.), Taipei Veterans General Hospital; School of Medicine (P.-N.W.) and Brain Research Center (P.-N.W.), National Yang-Ming Chiao-Tung University, Taipei, Taiwan R.O.C.; Department of Foreign Languages and Literature (F.G.Y.), National Tsing Hua University, HsinChu, Taiwan R.O.C.; Department of Radiology (F.G.Y.), Graduate School of Dentistry, Osaka University, Japan; Department of Psychology (N.F.D.), University of California, Berkeley; and Department of Neurology (N.F.D.), University of California, Davis
| | - Fanpei G Yang
- From the Memory and Aging Center (B.L.T., G.B., B.L.M., M.L.G.-T.), Department of Neurology, Dyslexia Center (B.L.T., G.B., M.L.G.-T.), Global Brain Health Institute (B.L.T., M.L.G.-T.), and Department of Epidemiology and Biostatistics (I.E.A.), University of California, San Francisco; Department of Neurology (B.L.T., R.Y.L.), Buddhist Tzu Chi General Hospital, Hualien, Taiwan R.O.C.; Department of Special Education and Counselling (L.Y.L.K.-C.), The Education University of Hong Kong; Department of Neurology (T.-F.C., Y.L.), National Taiwan University Hospital, Taipei, Taiwan R.O.C.; Department of Psychiatry (C.T.Y.Y., J.T.), ShaTin Hospital, Hong Kong; Department of Medicine (C.T.Y.Y., J.T., A.W.), Chinese University of Hong Kong; Department of Medicine (A.L.-T.C.), Queen Elizabeth Hospital, Hong Kong; Department of Neurology (C.L.L.), En Chu Kong Hospital, New Taipei City; Division of General Neurology, Department of Neurological Institute (P.-N.W.), Taipei Veterans General Hospital; School of Medicine (P.-N.W.) and Brain Research Center (P.-N.W.), National Yang-Ming Chiao-Tung University, Taipei, Taiwan R.O.C.; Department of Foreign Languages and Literature (F.G.Y.), National Tsing Hua University, HsinChu, Taiwan R.O.C.; Department of Radiology (F.G.Y.), Graduate School of Dentistry, Osaka University, Japan; Department of Psychology (N.F.D.), University of California, Berkeley; and Department of Neurology (N.F.D.), University of California, Davis
| | - Giovanni Battistella
- From the Memory and Aging Center (B.L.T., G.B., B.L.M., M.L.G.-T.), Department of Neurology, Dyslexia Center (B.L.T., G.B., M.L.G.-T.), Global Brain Health Institute (B.L.T., M.L.G.-T.), and Department of Epidemiology and Biostatistics (I.E.A.), University of California, San Francisco; Department of Neurology (B.L.T., R.Y.L.), Buddhist Tzu Chi General Hospital, Hualien, Taiwan R.O.C.; Department of Special Education and Counselling (L.Y.L.K.-C.), The Education University of Hong Kong; Department of Neurology (T.-F.C., Y.L.), National Taiwan University Hospital, Taipei, Taiwan R.O.C.; Department of Psychiatry (C.T.Y.Y., J.T.), ShaTin Hospital, Hong Kong; Department of Medicine (C.T.Y.Y., J.T., A.W.), Chinese University of Hong Kong; Department of Medicine (A.L.-T.C.), Queen Elizabeth Hospital, Hong Kong; Department of Neurology (C.L.L.), En Chu Kong Hospital, New Taipei City; Division of General Neurology, Department of Neurological Institute (P.-N.W.), Taipei Veterans General Hospital; School of Medicine (P.-N.W.) and Brain Research Center (P.-N.W.), National Yang-Ming Chiao-Tung University, Taipei, Taiwan R.O.C.; Department of Foreign Languages and Literature (F.G.Y.), National Tsing Hua University, HsinChu, Taiwan R.O.C.; Department of Radiology (F.G.Y.), Graduate School of Dentistry, Osaka University, Japan; Department of Psychology (N.F.D.), University of California, Berkeley; and Department of Neurology (N.F.D.), University of California, Davis
| | - Isabel Elaine Allen
- From the Memory and Aging Center (B.L.T., G.B., B.L.M., M.L.G.-T.), Department of Neurology, Dyslexia Center (B.L.T., G.B., M.L.G.-T.), Global Brain Health Institute (B.L.T., M.L.G.-T.), and Department of Epidemiology and Biostatistics (I.E.A.), University of California, San Francisco; Department of Neurology (B.L.T., R.Y.L.), Buddhist Tzu Chi General Hospital, Hualien, Taiwan R.O.C.; Department of Special Education and Counselling (L.Y.L.K.-C.), The Education University of Hong Kong; Department of Neurology (T.-F.C., Y.L.), National Taiwan University Hospital, Taipei, Taiwan R.O.C.; Department of Psychiatry (C.T.Y.Y., J.T.), ShaTin Hospital, Hong Kong; Department of Medicine (C.T.Y.Y., J.T., A.W.), Chinese University of Hong Kong; Department of Medicine (A.L.-T.C.), Queen Elizabeth Hospital, Hong Kong; Department of Neurology (C.L.L.), En Chu Kong Hospital, New Taipei City; Division of General Neurology, Department of Neurological Institute (P.-N.W.), Taipei Veterans General Hospital; School of Medicine (P.-N.W.) and Brain Research Center (P.-N.W.), National Yang-Ming Chiao-Tung University, Taipei, Taiwan R.O.C.; Department of Foreign Languages and Literature (F.G.Y.), National Tsing Hua University, HsinChu, Taiwan R.O.C.; Department of Radiology (F.G.Y.), Graduate School of Dentistry, Osaka University, Japan; Department of Psychology (N.F.D.), University of California, Berkeley; and Department of Neurology (N.F.D.), University of California, Davis
| | - Nina F Dronkers
- From the Memory and Aging Center (B.L.T., G.B., B.L.M., M.L.G.-T.), Department of Neurology, Dyslexia Center (B.L.T., G.B., M.L.G.-T.), Global Brain Health Institute (B.L.T., M.L.G.-T.), and Department of Epidemiology and Biostatistics (I.E.A.), University of California, San Francisco; Department of Neurology (B.L.T., R.Y.L.), Buddhist Tzu Chi General Hospital, Hualien, Taiwan R.O.C.; Department of Special Education and Counselling (L.Y.L.K.-C.), The Education University of Hong Kong; Department of Neurology (T.-F.C., Y.L.), National Taiwan University Hospital, Taipei, Taiwan R.O.C.; Department of Psychiatry (C.T.Y.Y., J.T.), ShaTin Hospital, Hong Kong; Department of Medicine (C.T.Y.Y., J.T., A.W.), Chinese University of Hong Kong; Department of Medicine (A.L.-T.C.), Queen Elizabeth Hospital, Hong Kong; Department of Neurology (C.L.L.), En Chu Kong Hospital, New Taipei City; Division of General Neurology, Department of Neurological Institute (P.-N.W.), Taipei Veterans General Hospital; School of Medicine (P.-N.W.) and Brain Research Center (P.-N.W.), National Yang-Ming Chiao-Tung University, Taipei, Taiwan R.O.C.; Department of Foreign Languages and Literature (F.G.Y.), National Tsing Hua University, HsinChu, Taiwan R.O.C.; Department of Radiology (F.G.Y.), Graduate School of Dentistry, Osaka University, Japan; Department of Psychology (N.F.D.), University of California, Berkeley; and Department of Neurology (N.F.D.), University of California, Davis
| | - Bruce L Miller
- From the Memory and Aging Center (B.L.T., G.B., B.L.M., M.L.G.-T.), Department of Neurology, Dyslexia Center (B.L.T., G.B., M.L.G.-T.), Global Brain Health Institute (B.L.T., M.L.G.-T.), and Department of Epidemiology and Biostatistics (I.E.A.), University of California, San Francisco; Department of Neurology (B.L.T., R.Y.L.), Buddhist Tzu Chi General Hospital, Hualien, Taiwan R.O.C.; Department of Special Education and Counselling (L.Y.L.K.-C.), The Education University of Hong Kong; Department of Neurology (T.-F.C., Y.L.), National Taiwan University Hospital, Taipei, Taiwan R.O.C.; Department of Psychiatry (C.T.Y.Y., J.T.), ShaTin Hospital, Hong Kong; Department of Medicine (C.T.Y.Y., J.T., A.W.), Chinese University of Hong Kong; Department of Medicine (A.L.-T.C.), Queen Elizabeth Hospital, Hong Kong; Department of Neurology (C.L.L.), En Chu Kong Hospital, New Taipei City; Division of General Neurology, Department of Neurological Institute (P.-N.W.), Taipei Veterans General Hospital; School of Medicine (P.-N.W.) and Brain Research Center (P.-N.W.), National Yang-Ming Chiao-Tung University, Taipei, Taiwan R.O.C.; Department of Foreign Languages and Literature (F.G.Y.), National Tsing Hua University, HsinChu, Taiwan R.O.C.; Department of Radiology (F.G.Y.), Graduate School of Dentistry, Osaka University, Japan; Department of Psychology (N.F.D.), University of California, Berkeley; and Department of Neurology (N.F.D.), University of California, Davis
| | - Maria Luisa Gorno-Tempini
- From the Memory and Aging Center (B.L.T., G.B., B.L.M., M.L.G.-T.), Department of Neurology, Dyslexia Center (B.L.T., G.B., M.L.G.-T.), Global Brain Health Institute (B.L.T., M.L.G.-T.), and Department of Epidemiology and Biostatistics (I.E.A.), University of California, San Francisco; Department of Neurology (B.L.T., R.Y.L.), Buddhist Tzu Chi General Hospital, Hualien, Taiwan R.O.C.; Department of Special Education and Counselling (L.Y.L.K.-C.), The Education University of Hong Kong; Department of Neurology (T.-F.C., Y.L.), National Taiwan University Hospital, Taipei, Taiwan R.O.C.; Department of Psychiatry (C.T.Y.Y., J.T.), ShaTin Hospital, Hong Kong; Department of Medicine (C.T.Y.Y., J.T., A.W.), Chinese University of Hong Kong; Department of Medicine (A.L.-T.C.), Queen Elizabeth Hospital, Hong Kong; Department of Neurology (C.L.L.), En Chu Kong Hospital, New Taipei City; Division of General Neurology, Department of Neurological Institute (P.-N.W.), Taipei Veterans General Hospital; School of Medicine (P.-N.W.) and Brain Research Center (P.-N.W.), National Yang-Ming Chiao-Tung University, Taipei, Taiwan R.O.C.; Department of Foreign Languages and Literature (F.G.Y.), National Tsing Hua University, HsinChu, Taiwan R.O.C.; Department of Radiology (F.G.Y.), Graduate School of Dentistry, Osaka University, Japan; Department of Psychology (N.F.D.), University of California, Berkeley; and Department of Neurology (N.F.D.), University of California, Davis
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Mesulam MM, Coventry CA, Bigio EH, Sridhar J, Gill N, Fought AJ, Zhang H, Thompson CK, Geula C, Gefen T, Flanagan M, Mao Q, Weintraub S, Rogalski EJ. Neuropathological fingerprints of survival, atrophy and language in primary progressive aphasia. Brain 2022; 145:2133-2148. [PMID: 35441216 PMCID: PMC9246707 DOI: 10.1093/brain/awab410] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/25/2021] [Accepted: 10/19/2021] [Indexed: 01/21/2023] Open
Abstract
Primary progressive aphasia is a neurodegenerative disease that selectively impairs language without equivalent impairment of speech, memory or comportment. In 118 consecutive autopsies on patients with primary progressive aphasia, primary diagnosis was Alzheimer's disease neuropathological changes (ADNC) in 42%, corticobasal degeneration or progressive supranuclear palsy neuropathology in 24%, Pick's disease neuropathology in 10%, transactive response DNA binding proteinopathy type A [TDP(A)] in 10%, TDP(C) in 11% and infrequent entities in 3%. Survival was longest in TDP(C) (13.2 ± 2.6 years) and shortest in TDP(A) (7.1 ± 2.4 years). A subset of 68 right-handed participants entered longitudinal investigations. They were classified as logopenic, agrammatic/non-fluent or semantic by quantitative algorithms. Each variant had a preferred but not invariant neuropathological correlate. Seventy-seven per cent of logopenics had ADNC, 56% of agrammatics had corticobasal degeneration/progressive supranuclear palsy or Pick's disease and 89% of semantics had TDP(C). Word comprehension impairments had strong predictive power for determining underlying neuropathology positively for TDP(C) and negatively for ADNC. Cortical atrophy was smallest in corticobasal degeneration/progressive supranuclear palsy and largest in TDP(A). Atrophy encompassed posterior frontal but not temporoparietal cortex in corticobasal degeneration/progressive supranuclear palsy, anterior temporal but not frontoparietal cortex in TDP(C), temporofrontal but not parietal cortex in Pick's disease and all three lobes with ADNC or TDP(A). There were individual deviations from these group patterns, accounting for less frequent clinicopathologic associations. The one common denominator was progressive asymmetric atrophy overwhelmingly favouring the left hemisphere language network. Comparisons of ADNC in typical amnestic versus atypical aphasic dementia and of TDP in type A versus type C revealed fundamental biological and clinical differences, suggesting that members of each pair may constitute distinct clinicopathologic entities despite identical downstream proteinopathies. Individual TDP(C) participants with unilateral left temporal atrophy displayed word comprehension impairments without additional object recognition deficits, helping to dissociate semantic primary progressive aphasia from semantic dementia. When common and uncommon associations were considered in the set of 68 participants, one neuropathology was found to cause multiple clinical subtypes, and one subtype of primary progressive aphasia to be caused by multiple neuropathologies, but with different probabilities. Occasionally, expected clinical manifestations of atrophy sites were absent, probably reflecting individual peculiarities of language organization. The hemispheric asymmetry of neurodegeneration and resultant language impairment in primary progressive aphasia reflect complex interactions among the cellular affinities of the degenerative disease, the constitutive biology of language cortex, familial or developmental vulnerabilities of this network and potential idiosyncrasies of functional anatomy in the affected individual.
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Affiliation(s)
- M Marsel Mesulam
- Correspondence to: M. Mesulam 330 East Superior St, Tarry-8 Chicago, IL 60611, USA E-mail:
| | - Christina A Coventry
- Mesulam Center for Cognitive Neurology and Alzheimer’s Disease, Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Eileen H Bigio
- Mesulam Center for Cognitive Neurology and Alzheimer’s Disease, Feinberg School of Medicine, Chicago, IL 60611, USA,Department of Pathology, Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Jaiashre Sridhar
- Mesulam Center for Cognitive Neurology and Alzheimer’s Disease, Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Nathan Gill
- Mesulam Center for Cognitive Neurology and Alzheimer’s Disease, Feinberg School of Medicine, Chicago, IL 60611, USA,Department of Preventive Medicine, Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Angela J Fought
- Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado-Denver Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Hui Zhang
- Mesulam Center for Cognitive Neurology and Alzheimer’s Disease, Feinberg School of Medicine, Chicago, IL 60611, USA,Department of Preventive Medicine, Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Cynthia K Thompson
- Mesulam Center for Cognitive Neurology and Alzheimer’s Disease, Feinberg School of Medicine, Chicago, IL 60611, USA,School of Communication, Northwestern University, Evanston, IL 60208, USA
| | - Changiz Geula
- Mesulam Center for Cognitive Neurology and Alzheimer’s Disease, Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Tamar Gefen
- Mesulam Center for Cognitive Neurology and Alzheimer’s Disease, Feinberg School of Medicine, Chicago, IL 60611, USA,Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Margaret Flanagan
- Mesulam Center for Cognitive Neurology and Alzheimer’s Disease, Feinberg School of Medicine, Chicago, IL 60611, USA,Department of Pathology, Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Qinwen Mao
- Department of Pathology, University of Utah, Salt Lake City, UT 84112, USA
| | - Sandra Weintraub
- Mesulam Center for Cognitive Neurology and Alzheimer’s Disease, Feinberg School of Medicine, Chicago, IL 60611, USA,Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Emily J Rogalski
- Mesulam Center for Cognitive Neurology and Alzheimer’s Disease, Feinberg School of Medicine, Chicago, IL 60611, USA,Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Chicago, IL 60611, USA
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36
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Volfart A, Yan X, Maillard L, Colnat-Coulbois S, Hossu G, Rossion B, Jonas J. Intracerebral electrical stimulation of the right anterior fusiform gyrus impairs human face identity recognition. Neuroimage 2022; 250:118932. [PMID: 35085763 DOI: 10.1016/j.neuroimage.2022.118932] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 01/17/2022] [Accepted: 01/23/2022] [Indexed: 01/23/2023] Open
Abstract
Brain regions located between the right fusiform face area (FFA) in the middle fusiform gyrus and the temporal pole may play a critical role in human face identity recognition but their investigation is limited by a large signal drop-out in functional magnetic resonance imaging (fMRI). Here we report an original case who is suddenly unable to recognize the identity of faces when electrically stimulated on a focal location inside this intermediate region of the right anterior fusiform gyrus. The reliable transient identity recognition deficit occurs without any change of percept, even during nonverbal face tasks (i.e., pointing out the famous face picture among three options; matching pictures of unfamiliar or familiar faces for their identities), and without difficulty at recognizing visual objects or famous written names. The effective contact is associated with the largest frequency-tagged electrophysiological signals of face-selectivity and of familiar and unfamiliar face identity recognition. This extensive multimodal investigation points to the right anterior fusiform gyrus as a critical hub of the human cortical face network, between posterior ventral occipito-temporal face-selective regions directly connected to low-level visual cortex, the medial temporal lobe involved in generic memory encoding, and ventral anterior temporal lobe regions holding semantic associations to people's identity.
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Affiliation(s)
- Angélique Volfart
- Université de Lorraine, CNRS, CRAN, F-54000 Nancy, France; University of Louvain, Psychological Sciences Research Institute, B-1348 Louvain-La-Neuve, Belgium
| | - Xiaoqian Yan
- Université de Lorraine, CNRS, CRAN, F-54000 Nancy, France; University of Louvain, Psychological Sciences Research Institute, B-1348 Louvain-La-Neuve, Belgium; Stanford University, Department of Psychology, CA 94305 Stanford, USA
| | - Louis Maillard
- Université de Lorraine, CNRS, CRAN, F-54000 Nancy, France; Université de Lorraine, CHRU-Nancy, Service de Neurologie, F-54000 Nancy, France
| | - Sophie Colnat-Coulbois
- Université de Lorraine, CNRS, CRAN, F-54000 Nancy, France; Université de Lorraine, CHRU-Nancy, Service de Neurochirurgie, F-54000 Nancy, France
| | - Gabriela Hossu
- Université de Lorraine, CHRU-Nancy, CIC-IT, F-54000 Nancy, France; Université de Lorraine, Inserm, IADI, F-54000 Nancy, France
| | - Bruno Rossion
- Université de Lorraine, CNRS, CRAN, F-54000 Nancy, France; University of Louvain, Psychological Sciences Research Institute, B-1348 Louvain-La-Neuve, Belgium; Université de Lorraine, CHRU-Nancy, Service de Neurologie, F-54000 Nancy, France
| | - Jacques Jonas
- Université de Lorraine, CNRS, CRAN, F-54000 Nancy, France; Université de Lorraine, CHRU-Nancy, Service de Neurologie, F-54000 Nancy, France.
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Abstract
This chapter explores the involvement of the temporal lobes in distinct language functions. The examination of cases of localized damage to the temporal lobes and the resulting pattern of impairment across language tasks and types of errors made can reveal clear neural regions and associated networks essential for word comprehension, semantics, naming, reading, and spelling. Key regions implicated in these functions include left superior temporal gyrus posterior to the temporal pole in word comprehension, bilateral anterior temporal lobes in semantics, left posterior inferior temporal gyrus (pITG) in naming, and left pITG and fusiform cortex in reading and spelling. Results we review provide evidence that the temporal lobes have a critical role in many language tasks. Although various areas and associated white matter tracts work together in supporting language, damage to specific regions of the temporal lobes results in distinct and relatively predictable impairments of language functions.
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Affiliation(s)
- Delaney M Ubellacker
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Argye E Hillis
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, United States.
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Borghesani V, DeLeon J, Gorno-Tempini ML. Frontotemporal dementia: A unique window on the functional role of the temporal lobes. Handb Clin Neurol 2022; 187:429-448. [PMID: 35964986 PMCID: PMC9793689 DOI: 10.1016/b978-0-12-823493-8.00011-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Frontotemporal dementia (FTD) is an umbrella term covering a plethora of progressive changes in executive functions, motor abilities, behavior, and/or language. Different clinical syndromes have been described in relation to localized atrophy, informing on the functional networks that underlie these specific cognitive, emotional, and behavioral processes. These functional declines are linked with the underlying neurodegeneration of frontal and/or temporal lobes due to diverse molecular pathologies. Initially, the accumulation of misfolded proteins targets specifically susceptible cell assemblies, leading to relatively focal neurodegeneration that later spreads throughout large-scale cortical networks. Here, we discuss the most recent clinical, neuropathological, imaging, and genetics findings in FTD-spectrum syndromes affecting the temporal lobe. We focus on the semantic variant of primary progressive aphasia and its mirror image, the right temporal variant of FTD. Incipient focal atrophy of the left anterior temporal lobe (ATL) manifests with predominant naming, word comprehension, reading, and object semantic deficits, while cases of predominantly right ATL atrophy present with impairments of socioemotional, nonverbal semantic, and person-specific knowledge. Overall, the observations in FTD allow for crucial clinical-anatomic inferences, shedding light on the role of the temporal lobes in both cognition and complex behaviors. The concerted activity of both ATLs is critical to ensure that percepts are translated into concepts, yet important hemispheric differences should be acknowledged. On one hand, the left ATL attributes meaning to linguistic, external stimuli, thus supporting goal-oriented, action-related behaviors (e.g., integrating sounds and letters into words). On the other hand, the right ATL assigns meaning to emotional, visceral stimuli, thus guiding socially relevant behaviors (e.g., integrating body sensations into feelings of familiarity).
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Affiliation(s)
- Valentina Borghesani
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal, Montréal, QC, Canada; Department of Psychology, Université de Montréal, Montréal, QC, Canada.
| | - Jessica DeLeon
- Memory and Aging Center, Department of Neurology, University of California, San Francisco, CA, United States; Department of Neurology, Dyslexia Center, University of California, San Francisco, CA, United States
| | - Maria Luisa Gorno-Tempini
- Memory and Aging Center, Department of Neurology, University of California, San Francisco, CA, United States; Department of Neurology, Dyslexia Center, University of California, San Francisco, CA, United States
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Suárez-González A, Savage SA, Bier N, Henry ML, Jokel R, Nickels L, Taylor-Rubin C. Semantic Variant Primary Progressive Aphasia: Practical Recommendations for Treatment from 20 Years of Behavioural Research. Brain Sci 2021; 11:1552. [PMID: 34942854 DOI: 10.3390/brainsci11121552] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 11/15/2021] [Accepted: 11/16/2021] [Indexed: 12/01/2022] Open
Abstract
People with semantic variant primary progressive aphasia (svPPA) present with a characteristic progressive breakdown of semantic knowledge. There are currently no pharmacological interventions to cure or slow svPPA, but promising behavioural approaches are increasingly reported. This article offers an overview of the last two decades of research into interventions to support language in people with svPPA including recommendations for clinical practice and future research based on the best available evidence. We offer a lay summary in English, Spanish and French for education and dissemination purposes. This paper discusses the implications of right- versus left-predominant atrophy in svPPA, which naming therapies offer the best outcomes and how to capitalise on preserved long-term memory systems. Current knowledge regarding the maintenance and generalisation of language therapy gains is described in detail along with the development of compensatory approaches and educational and support group programmes. It is concluded that there is evidence to support an integrative framework of treatment and care as best practice for svPPA. Such an approach should combine rehabilitation interventions addressing the language impairment, compensatory approaches to support activities of daily living and provision of education and support within the context of dementia.
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Ulugut H, Dijkstra AA, Scarioni M, Barkhof F, Scheltens P, Rozemuller AJM, Pijnenburg YAL. Right temporal variant frontotemporal dementia is pathologically heterogeneous: a case-series and a systematic review. Acta Neuropathol Commun 2021; 9:131. [PMID: 34344452 PMCID: PMC8330072 DOI: 10.1186/s40478-021-01229-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 07/12/2021] [Indexed: 12/11/2022] Open
Abstract
Although the right temporal variant frontotemporal dementia (rtvFTD) is characterised by distinct clinical and radiological features, its underlying histopathology remains elusive. Being considered a right-sided variant of semantic variant primary progressive aphasia (svPPA), TDP-43 type C pathology has been linked to the syndrome, but this has not been studied in detail in large cohorts. In this case report and systematic review, we report the autopsy results of five subjects diagnosed with rtvFTD from our cohort and 44 single rtvFTD subjects from the literature. Macroscopic pathological evaluation of the combined results revealed that rtvFTD demonstrated either a frontotemporal or temporal evolution, even if the degeneration started in the right temporal lobe initially. FTLD-TDP type C was the most common underlying pathology in rtvFTD, however, in 64% of rtvFTD, other underlying pathologies than FTLD-TDP type C were present, such as Tau-MAPT and FTLD-TDP type A and B. Additionally, accompanying motor neuron or corticospinal tract degeneration was observed in 28% of rtvFTD patients. Our results show that in contrast to the general assumption, rtvFTD might not be a pure FTLD-TDP type C disorder, unlike its left temporal counterpart svPPA. Large sample size pathological studies are warranted to understand the diverse pathologies of the right and left temporal variants of frontotemporal dementia.
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Shaw SR, El-Omar H, Ramanan S, Piguet O, Ahmed RM, Whitton AE, Irish M. Anhedonia in Semantic Dementia-Exploring Right Hemispheric Contributions to the Loss of Pleasure. Brain Sci 2021; 11:998. [PMID: 34439617 DOI: 10.3390/brainsci11080998] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/19/2021] [Accepted: 07/21/2021] [Indexed: 11/24/2022] Open
Abstract
Semantic dementia (SD) is a younger-onset neurodegenerative disease characterised by progressive deterioration of the semantic knowledge base in the context of predominantly left-lateralised anterior temporal lobe (ATL) atrophy. Mounting evidence indicates the emergence of florid socioemotional changes in SD as atrophy encroaches into right temporal regions. How lateralisation of temporal lobe pathology impacts the hedonic experience in SD remains largely unknown yet has important implications for understanding socioemotional and functional impairments in this syndrome. Here, we explored how lateralisation of temporal lobe atrophy impacts anhedonia severity on the Snaith–Hamilton Pleasure Scale in 28 SD patients presenting with variable right- (SD-R) and left-predominant (SD-L) profiles of temporal lobe atrophy compared to that of 30 participants with Alzheimer’s disease and 30 healthy older Control participants. Relative to Controls, SD-R but not SD-L or Alzheimer’s patients showed clinically significant anhedonia, representing a clear departure from premorbid levels. Overall, anhedonia was more strongly associated with functional impairment on the Frontotemporal Dementia Functional Rating Scale and motivational changes on the Cambridge Behavioural Inventory in SD than in Alzheimer’s disease patients. Voxel-based morphometry analyses revealed that anhedonia severity correlated with reduced grey matter intensity in a restricted set of regions centred on right orbitofrontal and temporopolar cortices, bilateral posterior temporal cortices, as well as the anterior cingulate gyrus and parahippocampal gyrus, bilaterally. Finally, regression and mediation analysis indicated a unique role for right temporal lobe structures in modulating anhedonia in SD. Our findings suggest that degeneration of predominantly right-hemisphere structures deleteriously impacts the capacity to experience pleasure in SD. These findings offer important insights into hemispheric lateralisation of motivational disturbances in dementia and suggest that anhedonia may emerge at different timescales in the SD disease trajectory depending on the integrity of the right hemisphere.
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Papagno C, Pisoni A, Gainotti G. False alarms during recognition of famous people from faces and voices in patients with unilateral temporal lobe resection and normal participants tested after anodal tDCS over the left or right ATL. Neuropsychologia 2021; 159:107926. [PMID: 34216595 DOI: 10.1016/j.neuropsychologia.2021.107926] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 06/04/2021] [Accepted: 06/23/2021] [Indexed: 10/21/2022]
Abstract
Data gathered in the field of the experimental social psychology have shown that it is more difficult to recognize a person through his/her voice than through his/her face and that false alarms (FA) are produced more in voice than in face recognition. Furthermore, some neuropsychological investigations have suggested that in patients with damage to the right anterior temporal lobe (ATL) the number of FA could be higher for voice than for face recognition. In the present study we assessed FA during recognition of famous people from faces and voices in patients with unilateral ATL tumours and in normal participants tested after anodal transcranial direct current stimulation (tCDS), over the left or right ATL. The number of FA was significantly higher in patients with right than in those with left temporal tumours on both face and voice familiarity. Furthermore, lesion side did not differentially affect patient's sensitivity or response criterion when recognizing famous faces, but influenced both these measures on a voice recognition task. In fact, in this condition patients with right temporal tumours showed a lower sensitivity index and a lower response criterion than those with left-sided lesions. In normal subjects, the greater right sided involvement in voice than in face processing was confirmed by the observation that right ATL anodal stimulation significantly increased voice but only marginally influenced face sensitivity. This asymmetry between face and voice processing in the right hemisphere could be due to the greater complexity of voice processing and to the difficulty of forming stable and well-structured representations, allowing to evaluate if a presented voice matches or not with an already known voice.
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Affiliation(s)
- C Papagno
- CIMeC, Center for Mind/Brain Sciences, University of Trento, Rovereto, Italy; Department of Psychology, University of Milano-Bicocca, Milano, Italy.
| | - A Pisoni
- Department of Psychology, University of Milano-Bicocca, Milano, Italy
| | - G Gainotti
- Catholic University, Policlinico Gemelli, Roma, Italy
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Volfart A, Rice GE, Lambon Ralph MA, Rossion B. Implicit, automatic semantic word categorisation in the left occipito-temporal cortex as revealed by fast periodic visual stimulation. Neuroimage 2021; 238:118228. [PMID: 34082118 PMCID: PMC7613186 DOI: 10.1016/j.neuroimage.2021.118228] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 05/27/2021] [Accepted: 05/30/2021] [Indexed: 11/22/2022] Open
Abstract
Conceptual knowledge allows the categorisation of items according to their meaning beyond their physical similarities. This ability to respond to different stimuli (e.g., a leek, a cabbage, etc.) based on similar semantic representations (e.g., belonging to the vegetable category) is particularly important for language processing, because word meaning and the stimulus form are unrelated. The neural basis of this core human ability is debated and is complicated by the strong reliance of most neural measures on explicit tasks, involving many non-semantic processes. Here we establish an implicit method, i.e., fast periodic visual stimulation (FPVS) coupled with electroencephalography (EEG), to study neural conceptual categorisation processes with written word stimuli. Fourteen neurotypical participants were presented with different written words belonging to the same semantic category (e.g., different animals) alternating at 4 Hz rate. Words from a different semantic category (e.g., different cities) appeared every 4 stimuli (i.e., at 1 Hz). Following a few minutes of recording, objective electrophysiological responses at 1 Hz, highlighting the human brain’s ability to implicitly categorize stimuli belonging to distinct conceptual categories, were found over the left occipito-temporal region. Topographic differences were observed depending on whether the periodic change involved living items, associated with relatively more ventro-temporal activity as compared to non-living items associated with relatively more dorsal posterior activity. Overall, this study demonstrates the validity and high sensitivity of an implicit frequency-tagged marker of word-based semantic memory abilities.
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Affiliation(s)
- Angelique Volfart
- University of Louvain, Psychological Sciences Research Institute, B-1348 Louvain-La-Neuve, Belgium; Université de Lorraine, CNRS, CRAN, F-54000 Nancy, France
| | - Grace E Rice
- MRC Cognition and Brain Sciences Unit, University of Cambridge, CB2 7EF Cambridge, United Kingdom
| | - Matthew A Lambon Ralph
- MRC Cognition and Brain Sciences Unit, University of Cambridge, CB2 7EF Cambridge, United Kingdom.
| | - Bruno Rossion
- University of Louvain, Psychological Sciences Research Institute, B-1348 Louvain-La-Neuve, Belgium; Université de Lorraine, CNRS, CRAN, F-54000 Nancy, France; Université de Lorraine, CHRU-Nancy, Service de Neurologie, F-54000 Nancy, France.
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44
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Breining BL, Faria AV, Caffo B, Meier EL, Sheppard SM, Sebastian R, Tippett DC, Hillis AE. Neural regions underlying object and action naming: Complementary evidence from acute stroke and primary progressive aphasia. Aphasiology 2021; 36:732-760. [PMID: 35832655 PMCID: PMC9272983 DOI: 10.1080/02687038.2021.1907291] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 03/11/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Naming impairment is commonly noted in individuals with aphasia. However, object naming receives more attention than action naming. Furthermore, most studies include participants with aphasia due to only one aetiology, commonly stroke. We developed a new assessment, the Hopkins Action Naming Assessment (HANA), to evaluate action naming impairments. AIMS Our aims were to show that the HANA is a useful tool that can (1) identify action naming impairments and (2) be used to investigate the neural substrates underlying naming. We paired the HANA with the Boston Naming Test (BNT) to compare action and object naming. We considered participants with aphasia due to primary progressive aphasia (PPA) or acute left hemisphere stroke to provide a more comprehensive picture of brain-behaviour relationships critical for naming. Behaviourally, we hypothesised that there would be a double dissociation between object and action naming performance. Neuroanatomically, we hypothesised that different neural substrates would be implicated in object vs. action naming and that different lesion-deficit associations would be identified in participants with PPA vs. acute stroke. METHODS & PROCEDURES Participants (N=138 with PPA, N=37 with acute stroke) completed the BNT and HANA. Behavioural performance was compared. A subset of participants (N=31 with PPA, N=37 with acute stroke) provided neuroimaging data. The whole brain was automatically segmented into regions of interest (ROIs). For participants with PPA, the image variables were the ROI volumes, normalised by the brain volume. For participants with acute stroke, the image variables were the percentage of each ROI affected by the lesion. The relationship between ROIs likely to be involved in naming performance was modelled with LASSO regression. OUTCOMES & RESULTS Behavioural results showed a double dissociation in performance: in each group, some participants displayed intact performance relative to healthy controls on actions but not objects and/or significantly better performance on actions than objects, while others showed the opposite pattern. These results support the need to assess both objects and actions when evaluating naming deficits. Neuroimaging results identified different regions associated with object vs. action naming, implicating overlapping but distinct networks of regions. Furthermore, results differed for participants with PPA vs. acute stroke, indicating that critical information may be missed when only one aetiology is considered. CONCLUSIONS Overall, the study provides a more comprehensive picture of the neural bases of naming, underscoring the importance of assessing both objects and actions and considering different aetiologies of damage. It demonstrates the utility of the HANA.
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Affiliation(s)
- Bonnie L. Breining
- Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA
| | - Andreia V. Faria
- Department of Radiology, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA
| | - Brian Caffo
- Department of Biostatistics, Johns Hopkins School of Public Health, Baltimore, MD 21287, USA
| | - Erin L. Meier
- Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA
| | - Shannon M. Sheppard
- Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA
- Department of Communication Sciences & Disorders, Chapman University, Irvine, CA 92618, USA
| | - Rajani Sebastian
- Department of Physical Medicine and Rehabilitation, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA
| | - Donna C. Tippett
- Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA
- Department of Physical Medicine and Rehabilitation, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA
- Department of Otolaryngology - Head and Neck Surgery, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA
| | - Argye E. Hillis
- Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA
- Department of Physical Medicine and Rehabilitation, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA
- Department of Cognitive Science, Johns Hopkins University, Baltimore, MD 21218, USA
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Ivanova AA, Mineroff Z, Zimmerer V, Kanwisher N, Varley R, Fedorenko E. The Language Network Is Recruited but Not Required for Nonverbal Event Semantics. Neurobiol Lang (Camb) 2021; 2:176-201. [PMID: 37216147 PMCID: PMC10158592 DOI: 10.1162/nol_a_00030] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 01/07/2021] [Indexed: 05/24/2023]
Abstract
The ability to combine individual concepts of objects, properties, and actions into complex representations of the world is often associated with language. Yet combinatorial event-level representations can also be constructed from nonverbal input, such as visual scenes. Here, we test whether the language network in the human brain is involved in and necessary for semantic processing of events presented nonverbally. In Experiment 1, we scanned participants with fMRI while they performed a semantic plausibility judgment task versus a difficult perceptual control task on sentences and line drawings that describe/depict simple agent-patient interactions. We found that the language network responded robustly during the semantic task performed on both sentences and pictures (although its response to sentences was stronger). Thus, language regions in healthy adults are engaged during a semantic task performed on pictorial depictions of events. But is this engagement necessary? In Experiment 2, we tested two individuals with global aphasia, who have sustained massive damage to perisylvian language areas and display severe language difficulties, against a group of age-matched control participants. Individuals with aphasia were severely impaired on the task of matching sentences to pictures. However, they performed close to controls in assessing the plausibility of pictorial depictions of agent-patient interactions. Overall, our results indicate that the left frontotemporal language network is recruited but not necessary for semantic processing of nonverbally presented events.
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Affiliation(s)
- Anna A. Ivanova
- Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Zachary Mineroff
- Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Vitor Zimmerer
- Division of Psychology and Language Sciences, University College London, London, UK
| | - Nancy Kanwisher
- Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Rosemary Varley
- Division of Psychology and Language Sciences, University College London, London, UK
| | - Evelina Fedorenko
- Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, MA, USA
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Ulugut Erkoyun H, Groot C, Heilbron R, Nelissen A, van Rossum J, Jutten R, Koene T, van der Flier WM, Wattjes MP, Scheltens P, Ossenkoppele R, Barkhof F, Pijnenburg Y. A clinical-radiological framework of the right temporal variant of frontotemporal dementia. Brain 2021; 143:2831-2843. [PMID: 32830218 PMCID: PMC9172625 DOI: 10.1093/brain/awaa225] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 05/12/2020] [Accepted: 05/28/2020] [Indexed: 12/11/2022] Open
Abstract
The concept of the right temporal variant of frontotemporal dementia (rtvFTD) is still equivocal. The syndrome accompanying predominant right anterior temporal atrophy has previously been described as memory loss, prosopagnosia, getting lost and behavioural changes. Accurate detection is challenging, as the clinical syndrome might be confused with either behavioural variant FTD (bvFTD) or Alzheimer’s disease. Furthermore, based on neuroimaging features, the syndrome has been considered a right-sided variant of semantic variant primary progressive aphasia (svPPA). Therefore, we aimed to demarcate the clinical and neuropsychological characteristics of rtvFTD versus svPPA, bvFTD and Alzheimer’s disease. Moreover, we aimed to compare its neuroimaging profile against svPPA, which is associated with predominant left anterior temporal atrophy. Of 619 subjects with a clinical diagnosis of frontotemporal dementia or primary progressive aphasia, we included 70 subjects with a negative amyloid status in whom predominant right temporal lobar atrophy was identified based on blinded visual assessment of their initial brain MRI scans. Clinical symptoms were assessed retrospectively and compared with age- and sex-matched patients with svPPA (n = 70), bvFTD (n = 70) and Alzheimer’s disease (n = 70). Prosopagnosia, episodic memory impairment and behavioural changes such as disinhibition, apathy, compulsiveness and loss of empathy were the most common initial symptoms, whereas during the disease course, patients developed language problems such as word-finding difficulties and anomia. Distinctive symptoms of rtvFTD compared to the other groups included depression, somatic complaints, and motor/mental slowness. Aside from right temporal atrophy, the imaging pattern showed volume loss of the right ventral frontal area and the left temporal lobe, which represented a close mirror image of svPPA. Atrophy of the bilateral temporal poles and the fusiform gyrus were associated with prosopagnosia in rtvFTD. Our results highlight that rtvFTD has a unique clinical presentation. Since current diagnostic criteria do not cover specific symptoms of the rtvFTD, we propose a diagnostic tree to be used to define diagnostic criteria and call for an international validation.
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Affiliation(s)
- Hulya Ulugut Erkoyun
- Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands
| | - Colin Groot
- Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands
| | - Ronja Heilbron
- Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands
| | - Anne Nelissen
- Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands
| | - Jonathan van Rossum
- Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands
| | - Roos Jutten
- Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands
| | - Ted Koene
- Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands
| | - Wiesje M van der Flier
- Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands.,Department of Epidemiology and Biostatistics, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands
| | - Mike P Wattjes
- Department of Radiology and Nuclear Medicine, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands.,Department of Diagnostic and Interventional Neuroradiology, Hannover Medical School, Hannover, Germany
| | - Philip Scheltens
- Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands
| | - Rik Ossenkoppele
- Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands.,Lund University, Clinical Memory Research Unit, Lund, Sweden
| | - Frederik Barkhof
- Department of Radiology and Nuclear Medicine, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands.,UCL Institutes of Neurology and Healthcare Engineering, University College London, UK
| | - Yolande Pijnenburg
- Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands
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Tetzloff KA, Duffy JR, Strand EA, Machulda MM, Schwarz CG, Senjem ML, Jack CR, Josephs KA, Whitwell JL. Phonological Errors in Posterior Cortical Atrophy. Dement Geriatr Cogn Disord 2021; 50:195-203. [PMID: 34274933 PMCID: PMC8376759 DOI: 10.1159/000516481] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 04/10/2021] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Posterior cortical atrophy (PCA) is an atypical variant of Alzheimer's disease (AD) that presents with visuospatial/perceptual deficits. PCA is characterized by atrophy in posterior brain regions, which overlaps with atrophy occurring in logopenic variant of primary progressive aphasia (lvPPA), another atypical AD variant characterized by language difficulties, including phonological errors. Language abnormalities have been observed in PCA, although the prevalence of phonological errors is unknown. We aimed to compare the frequency and severity of phonological errors in PCA and lvPPA and determine the neuroanatomical correlates of phonological errors and language abnormalities in PCA. METHODS The presence and number of phonological errors were recorded during the Boston Naming Test and Western Aphasia Battery repetition subtest in 27 PCA patients and 27 age- and disease duration-matched lvPPA patients. Number of phonological errors and scores from language tests were correlated with regional gray matter volumes using Spearman correlations. RESULTS Phonological errors were evident in 55% of PCA patients and 70% of lvPPA patients, with lvPPA having higher average number of errors. Phonological errors in PCA correlated with decreased left inferior parietal and lateral temporal volume. Naming and fluency were also associated with decreased left lateral temporal lobe volume. CONCLUSIONS Phonological errors are common in PCA, although they are not as prevalent or severe as in lvPPA, and they are related to involvement of left temporoparietal cortex. This highlights the broad spectrum of clinical symptoms associated with AD and overlap between PCA and lvPPA.
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Affiliation(s)
| | - Joseph R. Duffy
- Department of Neurology (Division of Speech Pathology), Mayo Clinic, Rochester, MN, USA
| | - Edythe A. Strand
- Department of Neurology (Division of Speech Pathology), Mayo Clinic, Rochester, MN, USA
| | - Mary M. Machulda
- Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN, USA
| | | | - Matthew L. Senjem
- Department of Radiology, Mayo Clinic, Rochester, MN, USA,Department of Information Technology, Mayo Clinic, Rochester, MN, USA
| | | | - Keith A. Josephs
- Department of Neurology (Division of Behavioral Neurology), Mayo Clinic, Rochester, MN, USA
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Mesulam MM, Coventry C, Bigio EH, Geula C, Thompson C, Bonakdarpour B, Gefen T, Rogalski EJ, Weintraub S. Nosology of Primary Progressive Aphasia and the Neuropathology of Language. Adv Exp Med Biol 2021; 1281:33-49. [PMID: 33433867 PMCID: PMC8103786 DOI: 10.1007/978-3-030-51140-1_3] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Primary progressive aphasia (PPA) is a dementia syndrome associated with several neuropathologic entities, including Alzheimer's disease (AD) and all major forms of frontotemporal lobar degeneration (FTLD). It is classified into subtypes defined by the nature of the language domain that is most impaired. The asymmetric neurodegeneration of the hemisphere dominant for language (usually left) is one consistent feature of all PPA variants. This feature offers unique opportunities for exploring mechanisms of selective vulnerability in neurodegenerative diseases and the neuroanatomy of language. This chapter reviews some of the current trends in PPA research as well as the challenges that remain to be addressed on the nosology, clinicopathologic correlations, and therapy of this syndrome.
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Affiliation(s)
- M -Marsel Mesulam
- Mesulam Center for Cognitive Neurology and Alzheimer's Disease; Department of Neurology, Northwestern University, Chicago, IL, USA.
| | - Christina Coventry
- Mesulam Center for Cognitive Neurology and Alzheimer's Disease, Northwestern University, Chicago, IL, USA
| | - Eileen H Bigio
- Mesulam Center for Cognitive Neurology and Alzheimer's Disease; Department of Pathology, Northwestern University, Chicago, IL, USA
| | - Changiz Geula
- Mesulam Center for Cognitive Neurology and Alzheimer's Disease, Northwestern University, Chicago, IL, USA
| | - Cynthia Thompson
- Mesulam Center for Cognitive Neurology and Alzheimer's Disease; Department of Communication Sciences and Disorders; Department of Neurology, Northwestern University, Evanston, IL, USA
| | - Borna Bonakdarpour
- Mesulam Center for Cognitive Neurology and Alzheimer's Disease; Department of Neurology, Northwestern University, Chicago, IL, USA
| | - Tamar Gefen
- Mesulam Center for Cognitive Neurology and Alzheimer's Disease; Department of Psychiatry, Northwestern University, Chicago, IL, USA
| | - Emily J Rogalski
- Mesulam Center for Cognitive Neurology and Alzheimer's Disease; Department of Psychiatry, Northwestern University, Chicago, IL, USA
| | - Sandra Weintraub
- Mesulam Center for Cognitive Neurology and Alzheimer's Disease, Northwestern University, Chicago, IL, USA
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Abstract
The term visual agnosia is used to refer to recognition disorders that are confined to the visual modality, that are not due to an impairment in sensory functions, and that cannot be explained by other cognitive deficits or by general reduction in intellectual ability. Here, we describe the different types of visual agnosia that have been reported (form agnosia, integrative agnosia, associative agnosia, transformational and orientation agnosia as well as category-specific impairments such as pure alexia and prosopagnosia) and how they relate to the current understanding of visual object recognition. Together with related disorders such as simultanagnosia, texture agnosia, aphantasia, and optic aphasia, these visual perceptual impairments can have severe consequences for those affected. We suggest how in-depth assessment can be carried out to determine the type and the extent of these impairments. In the context of clinical assessment, a step-by-step approach reflecting a posterior to anterior gradient in visual object recognition, from more perceptual to more memory-related processes, is suggested. Individually tailored interventions targeting the identified impairments can be initiated based on the results of the assessment.
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Affiliation(s)
- Christian Gerlach
- Department of Psychology, University of Southern Denmark, Odense, Denmark.
| | - Ro Julia Robotham
- Department of Psychology, University of Copenhagen, Copenhagen, Denmark
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50
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Pozueta A, Lage C, García-Martínez M, Kazimierczak M, Bravo M, López-García S, Riancho J, González-Suarez A, Vázquez-Higuera JL, de Arcocha-Torres M, Banzo I, Jiménez-Bonilla J, Berciano J, Rodríguez-Rodríguez E, Sánchez-Juan P. Cognitive and Behavioral Profiles of Left and Right Semantic Dementia: Differential Diagnosis with Behavioral Variant Frontotemporal Dementia and Alzheimer's Disease. J Alzheimers Dis 2020; 72:1129-1144. [PMID: 31683488 DOI: 10.3233/jad-190877] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
BACKGROUND Semantic dementia (SD) is a subtype of frontotemporal dementia (FTD) characterized by semantic memory loss and preserved abilities of other cognitive functions. The clinical manifestations of SD require a differential diagnosis with Alzheimer's disease (AD), especially those with early onset, and behavioral variant FTD (bvFTD). OBJECTIVE The present study aimed to compare cognitive performances and neuropsychiatric symptoms in a population of AD, bvFTD, and left and right SD defined with the support of molecular imaging (amyloid and 2-[18F] fluoro-2-deoxy-D-glucose positron emission tomography) and assessed the accuracy of different neuropsychological markers in distinguishing these neurodegenerative diseases. METHODS Eighty-seven participants (32 AD, 20 bvFTD, and 35 SD (17 Left-SD and 18 Right-SD) completed a comprehensive neuropsychological battery that included memory, language, attention and executive functions, visuospatial function, visuoconstructional skills, and tasks designed specifically to evaluate prosopagnosia and facial emotions recognition. The Neuropsychiatric Inventory was administered to assess neuropsychiatric symptoms. RESULTS An episodic memory test that included semantic cues, a visuospatial test (both impaired in AD), a naming test and a prosopagnosia task (both impaired in SD) were the four most valuable cognitive metrics for the differential diagnosis between groups. Several behavioral abnormalities were differentially present, of which aggression, self-care (both more frequent in bvFTD), and eating habits, specifically overeating and altered dietary preference (more frequent in SD), were the most valuable in group discrimination. CONCLUSION Our study highlights the value of a comprehensive neuropsychological and neuropsychiatric evaluation for the differential diagnosis between FTD syndromes and AD.
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Affiliation(s)
- Ana Pozueta
- Neurology Service and Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), 'Marqués de Valdecilla' University Hospital, University of Cantabria, Institute for Research 'Marqués de Valdecilla' (IDIVAL), Santander, Spain
| | - Carmen Lage
- Neurology Service and Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), 'Marqués de Valdecilla' University Hospital, University of Cantabria, Institute for Research 'Marqués de Valdecilla' (IDIVAL), Santander, Spain
| | - María García-Martínez
- Neurology Service and Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), 'Marqués de Valdecilla' University Hospital, University of Cantabria, Institute for Research 'Marqués de Valdecilla' (IDIVAL), Santander, Spain
| | - Martha Kazimierczak
- Neurology Service and Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), 'Marqués de Valdecilla' University Hospital, University of Cantabria, Institute for Research 'Marqués de Valdecilla' (IDIVAL), Santander, Spain
| | - María Bravo
- Neurology Service and Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), 'Marqués de Valdecilla' University Hospital, University of Cantabria, Institute for Research 'Marqués de Valdecilla' (IDIVAL), Santander, Spain
| | - Sara López-García
- Neurology Service and Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), 'Marqués de Valdecilla' University Hospital, University of Cantabria, Institute for Research 'Marqués de Valdecilla' (IDIVAL), Santander, Spain
| | - Javier Riancho
- Neurology Service and Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Hospital Sierrallana, Institute for Research 'Marqués de Valdecilla' (IDIVAL), Santander, Spain
| | - Andrea González-Suarez
- Neurology Service and Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), 'Marqués de Valdecilla' University Hospital, University of Cantabria, Institute for Research 'Marqués de Valdecilla' (IDIVAL), Santander, Spain
| | - José Luis Vázquez-Higuera
- Neurology Service and Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), 'Marqués de Valdecilla' University Hospital, University of Cantabria, Institute for Research 'Marqués de Valdecilla' (IDIVAL), Santander, Spain
| | - María de Arcocha-Torres
- Department of Nuclear Medicine, University Hospital 'Marqués de Valdecilla', University of Cantabria, Molecular imaging Group - IDIVAL, Santander, Spain
| | - Ignacio Banzo
- Department of Nuclear Medicine, University Hospital 'Marqués de Valdecilla', University of Cantabria, Molecular imaging Group - IDIVAL, Santander, Spain
| | - Julio Jiménez-Bonilla
- Department of Nuclear Medicine, University Hospital 'Marqués de Valdecilla', University of Cantabria, Molecular imaging Group - IDIVAL, Santander, Spain
| | - José Berciano
- Neurology Service and Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), 'Marqués de Valdecilla' University Hospital, University of Cantabria, Institute for Research 'Marqués de Valdecilla' (IDIVAL), Santander, Spain
| | - Eloy Rodríguez-Rodríguez
- Neurology Service and Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), 'Marqués de Valdecilla' University Hospital, University of Cantabria, Institute for Research 'Marqués de Valdecilla' (IDIVAL), Santander, Spain
| | - Pascual Sánchez-Juan
- Neurology Service and Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), 'Marqués de Valdecilla' University Hospital, University of Cantabria, Institute for Research 'Marqués de Valdecilla' (IDIVAL), Santander, Spain
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