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Wu W, Lohani S, Homan T, Krieger-Redwood K, Hoffman P. Healthy ageing has divergent effects on verbal and non-verbal semantic cognition. Q J Exp Psychol (Hove) 2024; 77:1179-1189. [PMID: 37542428 DOI: 10.1177/17470218231195341] [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: 08/07/2023]
Abstract
Semantic cognition refers to the storage and appropriate use of knowledge acquired over the lifespan and underpins our everyday verbal and non-verbal behaviours. Successful semantic cognition requires representation of knowledge and control processes which ensure that currently relevant aspects of knowledge are retrieved and selected. Although these abilities have been widely studied in healthy young populations and semantically impaired patients, it is unclear how they change as a function of healthy ageing, especially for non-verbal semantic processing. Here, we addressed this issue by comparing the performance profiles of young and older people on a semantic knowledge task and a semantic control task, across verbal (word) and non-verbal (picture) versions. The results revealed distinct patterns of change during adulthood for semantic knowledge and semantic control. Older people performed better in both verbal and non-verbal knowledge tasks than young people. However, although the older group showed preserved controlled retrieval for verbal semantics, they demonstrated a specific impairment for non-verbal semantic control. These findings indicate that the effects of ageing on semantic cognition are more complex than previously assumed, and that input modality plays an important role in the shifting cognitive architecture of semantics in later life.
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Affiliation(s)
- Wei Wu
- School of Philosophy, Psychology & Language Sciences, The University of Edinburgh, Edinburgh, UK
| | - Suchismita Lohani
- School of Philosophy, Psychology & Language Sciences, The University of Edinburgh, Edinburgh, UK
| | - Taylore Homan
- School of Philosophy, Psychology & Language Sciences, The University of Edinburgh, Edinburgh, UK
| | | | - Paul Hoffman
- School of Philosophy, Psychology & Language Sciences, The University of Edinburgh, Edinburgh, UK
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2
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Krieger-Redwood K, Wang X, Souter N, Gonzalez Alam TRDJ, Smallwood J, Jackson RL, Jefferies E. Graded and sharp transitions in semantic function in left temporal lobe. Brain Lang 2024; 251:105402. [PMID: 38484446 DOI: 10.1016/j.bandl.2024.105402] [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] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 02/23/2024] [Accepted: 03/05/2024] [Indexed: 04/02/2024]
Abstract
Recent work has focussed on how patterns of functional change within the temporal lobe relate to whole-brain dimensions of intrinsic connectivity variation (Margulies et al., 2016). We examined two such 'connectivity gradients' reflecting the separation of (i) unimodal versus heteromodal and (ii) visual versus auditory-motor cortex, examining visually presented verbal associative and feature judgments, plus picture-based context and emotion generation. Functional responses along the first dimension sometimes showed graded change between modality-tuned and heteromodal cortex (in the verbal matching task), and other times showed sharp functional transitions, with deactivation at the extremes and activation in the middle of this gradient (internal generation). The second gradient revealed more visual than auditory-motor activation, regardless of content (associative, feature, context, emotion) or task process (matching/generation). We also uncovered subtle differences across each gradient for content type, which predominantly manifested as differences in relative magnitude of activation or deactivation.
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Affiliation(s)
- Katya Krieger-Redwood
- Department of Psychology, York Neuroimaging Centre, York Biomedical Research Institute, University of York, United Kingdom
| | - Xiuyi Wang
- CAS Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Nicholas Souter
- Department of Psychology, York Neuroimaging Centre, York Biomedical Research Institute, University of York, United Kingdom; School of Psychology, University of Sussex, Brighton, United Kingdom
| | | | | | - Rebecca L Jackson
- Department of Psychology, York Neuroimaging Centre, York Biomedical Research Institute, University of York, United Kingdom
| | - Elizabeth Jefferies
- Department of Psychology, York Neuroimaging Centre, York Biomedical Research Institute, University of York, United Kingdom.
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Carlos AF, Weigand SD, Duffy JR, Clark HM, Utianski RL, Machulda MM, Botha H, Thu Pham NT, Lowe VJ, Schwarz CG, Whitwell JL, Josephs KA. Volumetric analysis of hippocampal subregions and subfields in left and right semantic dementia. Brain Commun 2024; 6:fcae097. [PMID: 38572268 PMCID: PMC10988847 DOI: 10.1093/braincomms/fcae097] [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: 06/26/2023] [Revised: 10/20/2023] [Accepted: 03/21/2024] [Indexed: 04/05/2024] Open
Abstract
Two variants of semantic dementia are recognized based on the laterality of temporal lobe involvement: a left-predominant variant associated with verbal knowledge impairment and a right-predominant variant associated with behavioural changes and non-verbal knowledge loss. This cross-sectional clinicoradiologic study aimed to assess whole hippocampal, subregion, and/or subfield volume loss in semantic dementia versus controls and across its variants. Thirty-five semantic dementia participants and 15 controls from the Neurodegenerative Research Group at Mayo Clinic who had completed 3.0-T volumetric magnetic resonance imaging and 18F-fluorodeoxyglucose-positron emission tomography were included. Classification as left-predominant (n = 25) or right-predominant (n = 10) variant was based on temporal lobe hypometabolism. Volumes of hippocampal subregions (head, body, and tail) and subfields (parasubiculum, presubiculum, subiculum, cornu ammonis 1, cornu ammonis 3, cornu ammonis 4, dentate gyrus, molecular layer, hippocampal-amygdaloid transition area, and fimbria) were obtained using FreeSurfer 7. Subfield volumes were measured separately from head and body subregions. We fit linear mixed-effects models using log-transformed whole hippocampal/subregion/subfield volumes as dependent variables; age, sex, total intracranial volume, hemisphere and a group-by-hemisphere interaction as fixed effects; and subregion/subfield nested within hemisphere as a random effect. Significant results (P < 0.05) are hereby reported. At the whole hippocampal level, the dominant (predominantly involved) hemisphere of both variants showed 23-27% smaller volumes than controls. The non-dominant (less involved) hemisphere of the right-predominant variant also showed volume loss versus controls and the left-predominant variant. At the subregional level, both variants showed 17-28% smaller dominant hemisphere head, body, and tail than controls, with the right-predominant variant also showing 8-12% smaller non-dominant hemisphere head than controls and left-predominant variant. At the subfield level, the left-predominant variant showed 12-36% smaller volumes across all dominant hemisphere subfields and 14-15% smaller non-dominant hemisphere parasubiculum, presubiculum (head and body), subiculum (head) and hippocampal-amygdaloid transition area than controls. The right-predominant variant showed 16-49% smaller volumes across all dominant hemisphere subfields and 14-22% smaller parasubiculum, presubiculum, subiculum, cornu ammonis 3, hippocampal-amygdaloid transition area (all from the head) and fimbria of non-dominant hemisphere versus controls. Comparison of dominant hemispheres showed 16-29% smaller volumes of the parasubiculum, presubiculum (head) and fimbria in the right-predominant than left-predominant variant; comparison of non-dominant hemispheres showed 12-15% smaller cornu ammonis 3, cornu ammonis 4, dentate gyrus, hippocampal-amygdaloid transition area (all from the head) and cornu ammonis 1, cornu ammonis 3 and cornu ammonis 4 (all from the body) in the right-predominant variant. All hippocampal subregion/subfield volumes are affected in semantic dementia, although some are more affected in both dominant and non-dominant hemispheres of the right-predominant than the left-predominant variant by the time of presentation. Involvement of hippocampal structures is apparently more subregion dependent than subfield dependent, indicating possible superiority of subregion volumes as disease biomarkers.
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Affiliation(s)
- Arenn F Carlos
- Department of Neurology, Mayo Clinic, Rochester, MN 55905 USA
| | - Stephen D Weigand
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN 55905 USA
| | - Joseph R Duffy
- Department of Neurology, Mayo Clinic, Rochester, MN 55905 USA
| | - Heather M Clark
- Department of Neurology, Mayo Clinic, Rochester, MN 55905 USA
| | - Rene L Utianski
- Department of Neurology, Mayo Clinic, Rochester, MN 55905 USA
| | - Mary M Machulda
- Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN 55905 USA
| | - Hugo Botha
- Department of Neurology, Mayo Clinic, Rochester, MN 55905 USA
| | | | - Val J Lowe
- Department of Radiology, Mayo Clinic, Rochester, MN 55905 USA
| | | | | | - Keith A Josephs
- Department of Neurology, Mayo Clinic, Rochester, MN 55905 USA
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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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Di Napoli J, Arighi A, Conte G, Carandini T, Sacchi L, Arcaro M, Fenoglio C, Sorrentino F, Mercurio M, Pietroboni AM, Giardinieri G, Triulzi F, Galimberti D, Scarpini E, Fumagalli GG. Predominant right temporal lobe atrophy: Clinical, neuropsychological and structural differences based on amyloid status. Eur J Neurol 2024; 31:e16124. [PMID: 37933893 DOI: 10.1111/ene.16124] [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: 05/31/2023] [Revised: 10/06/2023] [Accepted: 10/17/2023] [Indexed: 11/08/2023]
Abstract
BACKGROUND Predominant right temporal atrophy is a radiological sign usually associated with frontotemporal dementia but this sign can also be present in Alzheimer's disease. Given the overlap of clinical symptoms between the two conditions, it is important to know which characteristics allow them to be differentiated. OBJECTIVES To compare clinical, neuropsychological and structural magnetic resonance imaging (MRI) data of subjects with prominent right anterior temporal atrophy, depending on the status of amyloid biomarkers. METHODS Among patients followed in the dementia center of Ospedale Maggiore Policlinico, subjects with right anterior temporal atrophy, defined as grade 3 or 4 on the corresponding visual rating scale, were identified. Only subjects with both an MRI scan and amyloid status available were considered. For selected subjects, data were extracted from clinical and neuropsychological records at initial presentation and at last available follow-up. Two raters applied a protocol of eight visual rating scales to compare brain atrophy and white matter hyperintensities. RESULTS Of 497 subjects, 17 fulfilled the inclusion criteria: 7 amyloid-positive and 10 amyloid-negative. At initial presentation, executive dysfunction and topographical disorientation were more common in amyloid-positive patients. At follow-up, behavioral symptoms, such as social awkwardness and compulsive attitude, were more frequent in the amyloid-negative patients. Amyloid-positive patients presented an overall worse neuropsychological performance, especially in the language and visuospatial domain, and had higher scores on the right anterior cingulate visual rating scale. CONCLUSION Patients with predominant right temporal atrophy showed clinical, neuropsychological and radiological differences, depending on the status of amyloid biomarkers.
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Affiliation(s)
- Jacopo Di Napoli
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Andrea Arighi
- Neurodegenerative Diseases Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Giorgio Conte
- Neuroradiology Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Tiziana Carandini
- Neurodegenerative Diseases Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Luca Sacchi
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Marina Arcaro
- Neurodegenerative Diseases Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Chiara Fenoglio
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Federica Sorrentino
- Department of Biomedical Surgical and Dental Sciences, University of Milan, Milan, Italy
| | - Matteo Mercurio
- Neurodegenerative Diseases Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Anna M Pietroboni
- Neurodegenerative Diseases Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Giulia Giardinieri
- Neurodegenerative Diseases Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Fabio Triulzi
- Neuroradiology Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Daniela Galimberti
- Neurodegenerative Diseases Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
- Department of Biomedical Surgical and Dental Sciences, University of Milan, Milan, Italy
| | - Elio Scarpini
- Neurodegenerative Diseases Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Giorgio G Fumagalli
- Center for Mind/Brain Sciences (CIMeC), University of Trento, Rovereto, Italy
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Dai Z, Song L, Luo C, Liu D, Li M, Han Z. Hemispheric lateralization of language processing: insights from network-based symptom mapping and patient subgroups. Cereb Cortex 2024; 34:bhad437. [PMID: 38031356 DOI: 10.1093/cercor/bhad437] [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: 02/26/2023] [Revised: 10/27/2023] [Accepted: 10/27/2023] [Indexed: 12/01/2023] Open
Abstract
The hemispheric laterality of language processing has become a hot topic in modern neuroscience. Although most previous studies have reported left-lateralized language processing, other studies found it to be bilateral. A previous neurocomputational model has proposed a unified framework to explain that the above discrepancy might be from healthy and patient individuals. This model posits an initial symmetry but imbalanced capacity in language processing for healthy individuals, with this imbalance contributing to language recovery disparities following different hemispheric injuries. The present study investigated this model by analyzing the lateralization patterns of language subnetworks across multiple attributes with a group of 99 patients (compared to nonlanguage processing) and examining the lateralization patterns of language subnetworks in subgroups with damage to different hemispheres. Subnetworks were identified using a whole-brain network-based lesion-symptom mapping method, and the lateralization index was quantitatively measured. We found that all the subnetworks in language processing were left-lateralized, while subnetworks in nonlanguage processing had different lateralization patterns. Moreover, diverse hemisphere-injury subgroups exhibited distinct language recovery effects. These findings provide robust support for the proposed neurocomputational model of language processing.
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Affiliation(s)
- Zhiyun Dai
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China
| | - Luping Song
- Shenzhen Sixth People's Hospital (Nanshan Hospital), Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen 518052, China
| | - Chongjing Luo
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China
| | - Di Liu
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China
| | - Mingyang Li
- Key Laboratory for Biomedical Engineering of Ministry of Education, Department of Biomedical Engineering, College of Biomedical Engineering & Instrument Science, Zhejiang University, Yuquan Campus, Hangzhou 310027, China
| | - Zaizhu Han
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China
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Josephs KA, Josephs KA. Prosopagnosia: face blindness and its association with neurological disorders. Brain Commun 2024; 6:fcae002. [PMID: 38419734 PMCID: PMC10901275 DOI: 10.1093/braincomms/fcae002] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 11/25/2023] [Accepted: 01/04/2024] [Indexed: 03/02/2024] Open
Abstract
Loss of facial recognition or prosopagnosia has been well-recognized for over a century. It has been categorized as developmental or acquired depending on whether the onset is in early childhood or beyond, and acquired cases can have degenerative or non-degenerative aetiologies. Prosopagnosia has been linked to involvement of the fusiform gyri, mainly in the right hemisphere. The literature on prosopagnosia comprises case reports and small case series. We aim to assess demographic, clinical and imaging characteristics and neurological and neuropathological disorders associated with a diagnosis of prosopagnosia in a large cohort. Patients were categorized as developmental versus acquired; those with acquired prosopagnosia were further subdivided into degenerative versus non-degenerative, based on neurological aetiology. We assessed regional involvement on [18F] fluorodeoxyglucose-PET and MRI of the right and left frontal, temporal, parietal and occipital lobes. The Intake and Referral Center at the Mayo Clinic identified 487 patients with possible prosopagnosia, of which 336 met study criteria for probable or definite prosopagnosia. Ten patients, 80.0% male, had developmental prosopagnosia including one with Niemann-Pick type C and another with a forkhead box G1 gene mutation. Of the 326 with acquired prosopagnosia, 235 (72.1%) were categorized as degenerative, 91 (27.9%) as non-degenerative. The most common degenerative diagnoses were posterior cortical atrophy, primary prosopagnosia syndrome, Alzheimer's disease dementia and semantic dementia, with each diagnosis accounting for >10% of this group. The most common non-degenerative diagnoses were infarcts (ischaemic and haemorrhagic), epilepsy-related and primary brain tumours, each accounting for >10%. We identified a group of patients with non-degenerative transient prosopagnosia in which facial recognition loss improved or resolved over time. These patients had migraine-related prosopagnosia, posterior reversible encephalopathy syndrome, delirium, hypoxic encephalopathy and ischaemic infarcts. On [18F] fluorodeoxyglucose-PET, the temporal lobes proved to be the most frequently affected regions in 117 patients with degenerative prosopagnosia, while in 82 patients with non-degenerative prosopagnosia, MRI revealed the right temporal and right occipital lobes as most affected by a focal lesion. The most common pathological findings in those with degenerative prosopagnosia were frontotemporal lobar degeneration with hippocampal sclerosis and mixed Alzheimer's and Lewy body disease pathology. In this large case series of patients diagnosed with prosopagnosia, we observed that facial recognition loss occurs across a wide range of acquired degenerative and non-degenerative neurological disorders, most commonly in males with developmental prosopagnosia. The right temporal and occipital lobes, and connecting fusiform gyrus, are key areas. Multiple different pathologies cause degenerative prosopagnosia.
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Affiliation(s)
| | - Keith A Josephs
- Department of Neurology, Mayo Clinic, Rochester, MN 55905, USA
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Norata D, Motolese F, Magliozzi A, Pilato F, Di Lazzaro V, Luzzi S, Capone F. Transcranial direct current stimulation in semantic variant of primary progressive aphasia: a state-of-the-art review. Front Hum Neurosci 2023; 17:1219737. [PMID: 38021245 PMCID: PMC10663282 DOI: 10.3389/fnhum.2023.1219737] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 09/27/2023] [Indexed: 12/01/2023] Open
Abstract
The semantic variant of primary progressive aphasia (svPPA), known also as "semantic dementia (SD)," is a neurodegenerative disorder that pertains to the frontotemporal lobar degeneration clinical syndromes. There is currently no approved pharmacological therapy for all frontotemporal dementia variants. Transcranial direct current stimulation (tDCS) is a promising non-invasive brain stimulation technique capable of modulating cortical excitability through a sub-threshold shift in neuronal resting potential. This technique has previously been applied as adjunct treatment in Alzheimer's disease, while data for frontotemporal dementia are controversial. In this scoped review, we summarize and critically appraise the currently available evidence regarding the use of tDCS for improving performance in naming and/or matching tasks in patients with svPPA. Clinical trials addressing this topic were identified through MEDLINE (accessed by PubMed) and Web of Science, as of November 2022, week 3. Clinical trials have been unable to show a significant benefit of tDCS in enhancing semantic performance in svPPA patients. The heterogeneity of the studies available in the literature might be a possible explanation. Nevertheless, the results of these studies are promising and may offer valuable insights into methodological differences and overlaps, raising interest among researchers in identifying new non-pharmacological strategies for treating svPPA patients. Further studies are therefore warranted to investigate the potential therapeutic role of tDCS in svPPA.
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Affiliation(s)
- Davide Norata
- Department of Medicine and Surgery, Unit of Neurology, Neurophysiology, Neurobiology and Psychiatry, Università Campus Bio-Medico di Roma, Rome, Italy
- Neurological Clinic, Department of Experimental and Clinical Medicine (DIMSC), Marche Polytechnic University, Ancona, Italy
| | - Francesco Motolese
- Department of Medicine and Surgery, Unit of Neurology, Neurophysiology, Neurobiology and Psychiatry, Università Campus Bio-Medico di Roma, Rome, Italy
- Fondazione Policlinico Universitario Campus Bio-Medico, Rome, Italy
| | - Alessandro Magliozzi
- Department of Medicine and Surgery, Unit of Neurology, Neurophysiology, Neurobiology and Psychiatry, Università Campus Bio-Medico di Roma, Rome, Italy
| | - Fabio Pilato
- Department of Medicine and Surgery, Unit of Neurology, Neurophysiology, Neurobiology and Psychiatry, Università Campus Bio-Medico di Roma, Rome, Italy
- Fondazione Policlinico Universitario Campus Bio-Medico, Rome, Italy
| | - Vincenzo Di Lazzaro
- Department of Medicine and Surgery, Unit of Neurology, Neurophysiology, Neurobiology and Psychiatry, Università Campus Bio-Medico di Roma, Rome, Italy
- Fondazione Policlinico Universitario Campus Bio-Medico, Rome, Italy
| | - Simona Luzzi
- Neurological Clinic, Department of Experimental and Clinical Medicine (DIMSC), Marche Polytechnic University, Ancona, Italy
| | - Fioravante Capone
- Department of Medicine and Surgery, Unit of Neurology, Neurophysiology, Neurobiology and Psychiatry, Università Campus Bio-Medico di Roma, Rome, Italy
- Fondazione Policlinico Universitario Campus Bio-Medico, Rome, Italy
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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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10
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Luzzi S, Baldinelli S, Fiori C, Morelli M, Gainotti G. The Dynamic Interplay between Loss of Semantic Memory and Semantic Learning Capacity: Insight from Neologisms Learning in Semantic Variant Primary Progressive Aphasia. Brain Sci 2023; 13:brainsci13050788. [PMID: 37239259 DOI: 10.3390/brainsci13050788] [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: 04/17/2023] [Revised: 05/08/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023] Open
Abstract
Semantic Variant of Primary Progressive Aphasia (svPPA) has often been considered as a loss of knowledge stored in semantic memory, but might also be due to a general disruption of mechanisms allowing the acquisition, storage, and retrieval of semantic memories. In order to assess any parallelism in svPPA patients between loss of semantic knowledge and inability to acquire new semantic information, we administered a battery of semantic learning tasks to healthy individuals and svPPA patients, where they were requested to learn new conceptual representations and new word forms, and to associate the former with the latter. A strong relation was found between loss of semantic knowledge and disruption of semantic learning: (a) patients with severe svPPA had the lowest scores in the semantic learning tasks; (b) significant correlations were found between scores obtained in semantic learning tasks and scores obtained in semantic memory disorders in svPPA patients.
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Affiliation(s)
- Simona Luzzi
- Department of Experimental and Clinical Medicine, Polytechnic University of Marche, 60126 Ancona, Italy
| | - Sara Baldinelli
- Neurologic Clinic, Azienda Ospedaliero-Universitaria delle Marche, 60126 Ancona, Italy
| | - Chiara Fiori
- Neurologic Clinic, Azienda Ospedaliero-Universitaria delle Marche, 60126 Ancona, Italy
| | | | - Guido Gainotti
- Institute of Neurology, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
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11
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Burkhardt E, Zemmoura I, Hirsch F, Lemaitre AL, Deverdun J, Moritz-Gasser S, Duffau H, Herbet G. The central role of the left inferior longitudinal fasciculus in the face-name retrieval network. Hum Brain Mapp 2023; 44:3254-3270. [PMID: 37051699 PMCID: PMC10171495 DOI: 10.1002/hbm.26279] [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: 09/02/2022] [Revised: 02/18/2023] [Accepted: 03/06/2023] [Indexed: 04/14/2023] Open
Abstract
Unsuccessful retrieval of proper names (PNs) is commonly observed in patients suffering from neurological conditions such as stroke or epilepsy. While a large body of works has suggested that PN retrieval relies on a cortical network centered on the left anterior temporal lobe (ATL), much less is known about the white matter connections underpinning this process. Sparse studies provided evidence for a possible role of the uncinate fasciculus, but the inferior longitudinal fasciculus (ILF) might also contribute, since it mainly projects into the ATL, interconnects it with the posterior lexical interface and is engaged in common name (CN) retrieval. To ascertain this hypothesis, we assessed 58 patients having undergone a neurosurgery for a left low-grade glioma by means of a famous face naming (FFN) task. The behavioural data were processed following a multilevel lesion approach, including location-based analyses, voxel-based lesion-symptom mapping (VLSM) and disconnection-symptom mapping. Different statistical models were generated to control for sociodemographic data, familiarity, biographical knowledge and control cognitive performances (i.e., semantic and episodic memory and CN retrieval). Overall, VLSM analyses indicated that damage to the mid-to-anterior part of the ventro-basal temporal cortex was especially associated with PN retrieval deficits. As expected, tract-oriented analyses showed that the left ILF was the most strongly associated pathway. Our results provide evidence for the pivotal role of the ILF in the PN retrieval network. This novel finding paves the way for a better understanding of the pathophysiological bases underlying PN retrieval difficulties in the various neurological conditions marked by white matter abnormalities.
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Affiliation(s)
- Eléonor Burkhardt
- Praxiling Laboratory, UMR5267, CNRS & Paul Valéry University, Montpellier, France
| | - Ilyess Zemmoura
- UMR1253, iBrain, University of Tours, INSERM, Tours, France
- Department of Neurosurgery, Bretonneau Hospital, CHRU de Tours, Tours, France
| | - Fabrice Hirsch
- Praxiling Laboratory, UMR5267, CNRS & Paul Valéry University, Montpellier, France
| | - Anne-Laure Lemaitre
- Institute of Functional Genomics, University of Montpellier, CNRS, INSERM, Montpellier, France
- Department of Neurosurgery, Gui de Chauliac Hospital, Montpellier University Medical Center, Montpellier, France
| | - Jeremy Deverdun
- Department of Neuroradiology, Gui de Chauliac Hospital, Montpellier University Medical Center, Montpellier, France
- I2FH, Institut d'Imagerie Fonctionnelle Humaine, Gui de Chauliac Hospital, Montpellier University Medical Center, Montpellier, France
| | - Sylvie Moritz-Gasser
- Institute of Functional Genomics, University of Montpellier, CNRS, INSERM, Montpellier, France
- Department of Neurosurgery, Gui de Chauliac Hospital, Montpellier University Medical Center, Montpellier, France
| | - Hugues Duffau
- Institute of Functional Genomics, University of Montpellier, CNRS, INSERM, Montpellier, France
- Department of Neurosurgery, Gui de Chauliac Hospital, Montpellier University Medical Center, Montpellier, France
| | - Guillaume Herbet
- Praxiling Laboratory, UMR5267, CNRS & Paul Valéry University, Montpellier, France
- Institute of Functional Genomics, University of Montpellier, CNRS, INSERM, Montpellier, France
- Department of Neurosurgery, Gui de Chauliac Hospital, Montpellier University Medical Center, Montpellier, France
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12
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Piccininni C, Marra C, Quaranta D, Papagno C, Longo C, Sarubbo S, Zigiotto L, Luzzi S, Gainotti G. Which components of famous people recognition are lateralized? A study of face, voice and name recognition disorders in patients with neoplastic or degenerative damage of the right or left anterior temporal lobes. Neuropsychologia 2023; 181:108490. [PMID: 36693520 DOI: 10.1016/j.neuropsychologia.2023.108490] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 01/16/2023] [Accepted: 01/16/2023] [Indexed: 01/22/2023]
Abstract
We administered to large groups of patients with neoplastic or degenerative damage affecting the right or left ATL, the 'Famous People Recognition Battery' (FPRB), in which subjects are required to recognize the same 40 famous people through their faces, voices and names, to clarify which components of famous people recognition are lateralized. At the familiarity level, we found, as expected, a dissociation between a greater impairment of patients with right ATL lesions on the non-verbal (face and voice) recognition modalities and of those with left ATL lesions on name familiarity. Equally expected were results obtained at the naming level, because the worse naming scores for faces and voices were observed in left-sided patients. Less foregone were, for two reasons, results obtained at the semantic level. First, no difference was found between the two hemispheric groups when scores obtained on the verbal (name) and non-verbal (face and voice) recognition modalities were account for. Second, the face and voice recognition modalities showed a different degree of right lateralization. All groups of patients showed, indeed, both at the familiarity and at the semantic level, a greater difficulty in the recognition of voices regarding faces, but this difference reached significance only in patients with right ATL lesions, suggesting a greater right lateralization of the more complex task of voice recognition. A model aiming to explain the greater right lateralization of the more perceptually demanding voice modality of person recognition is proposed.
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13
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Liu H, Liu W, Schwieter JW, Wu YJ. How processing emotion affects language control in bilinguals. Brain Struct Funct 2023; 228:635-49. [PMID: 36585969 DOI: 10.1007/s00429-022-02608-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 12/23/2022] [Indexed: 01/01/2023]
Abstract
Research has shown that several variables affect language control among bilingual speakers but the effect of affective processing remains unexplored. Chinese-English bilinguals participated in a novel prime-target language switching experiment in which they first judged the affective valence (i.e., positive or negative) of auditorily presented words and then named pictures with neutral emotional valence in either the same (non-switch trial) or different language (switch trial). Brain activity was monitored using functional magnetic resonance imaging (fMRI). The behavioral performance showed that the typical switch cost (i.e., the calculated difference between switch and non-switch trials) emerged after processing positive words but not after negative words. Brain imaging demonstrated that processing negative words immediately before non-switch picturing naming trials (but not for switch trials) increased activation in brain areas associated with domain-general cognitive control. The opposite patterns were found after processing positive words. These findings suggest that an (emotional) negative priming effect is induced by spontaneous exposure to negative words and that these priming effects may be triggered by reactive emotional processing and that they may interact with higher level cognitive functions.
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14
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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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15
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Demirbilek O, Rekik I. Predicting the evolution trajectory of population-driven connectional brain templates using recurrent multigraph neural networks. Med Image Anal 2023; 83:102649. [PMID: 36257134 DOI: 10.1016/j.media.2022.102649] [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: 12/13/2021] [Revised: 09/28/2022] [Accepted: 09/30/2022] [Indexed: 11/05/2022]
Abstract
The mapping of the time-dependent evolution of the human brain connectivity using longitudinal and multimodal neuroimaging datasets provides insights into the development of neurological disorders and the way they alter the brain morphology, structure and function over time. Recently, the connectional brain template (CBT) was introduced as a compact representation integrating a population of brain multigraphs, where two brain regions can have multiple connections, into a single graph. Given a population of brain multigraphs observed at a baseline timepoint t1, we aim to learn how to predict the evolution of the population CBT at follow-up timepoints t>t1. Such model will allow us to foresee the evolution of the connectivity patterns of healthy and disordered individuals at the population level. Here we present recurrent multigraph integrator network (ReMI-Net⋆) to forecast population templates at consecutive timepoints from a given single timepoint. In particular, we unprecedentedly design a graph neural network architecture to model the changes in the brain multigraph and identify the biomarkers that differentiate between the typical and atypical populations. Addressing such issues is of paramount importance in diagnosing neurodegenerative disorders at early stages and promoting new clinical studies based on the pinned-down biomarker brain regions or connectivities. In this paper, we demonstrate the design and use of the ReMI-Net⋆ model, which learns both the multigraph node level and time level dependencies concurrently. Thanks to its novel graph convolutional design and normalization layers, ReMI-Net⋆ predicts well-centered, discriminative, and topologically sound connectional templates over time. Additionally, the results show that our model outperforms all benchmarks and state-of-the-art methods by comparing and discovering the atypical connectivity alterations over time. Our ReMI-Net⋆ code is available on GitHub at https://github.com/basiralab/ReMI-Net-Star.
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Affiliation(s)
- Oytun Demirbilek
- BASIRA lab, Faculty of Computer and Informatics, Istanbul Technical University, Istanbul, Turkey
| | - Islem Rekik
- BASIRA lab, Faculty of Computer and Informatics, Istanbul Technical University, Istanbul, Turkey; School of Science and Engineering, Computing, University of Dundee, UK.
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16
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Souza LCD, Hosogi ML, Machado TH, Carthery-Goulart MT, Yassuda MS, Smid J, Barbosa BJAP, Schilling LP, Balthazar MLF, Frota NAF, Vale FAC, Caramelli P, Bertolucci PHF, Chaves MLF, Brucki SMD, Nitrini R, Bahia VS, Takada LT. Diagnóstico da demência frontotemporal: recomendações do Departamento Científico de Neurologia Cognitiva e do Envelhecimento da Academia Brasileira de Neurologia. Dement Neuropsychol 2022; 16:40-52. [DOI: 10.1590/1980-5764-dn-2022-s103pt] [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] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 12/08/2021] [Accepted: 04/27/2022] [Indexed: 11/30/2022] Open
Abstract
RESUMO A “demência frontotemporal” (DFT) é uma síndrome clínica, cujo denominador comum é o acometimento focal dos lobos frontais e/ou temporais. A DFT tem três fenótipos clínicos distintos: a variante comportamental e dois subtipos linguísticos, a saber, a afasia progressiva primária não-fluente/agramática (APP-NF/A) e a afasia progressiva primária semântica (APP-S). A DFT é a segunda causa mais comum de demência em indivíduos com idade inferior a 65 anos, após a doença de Alzheimer. O presente artigo apresenta recomendações para diagnóstico da DFT no cenário brasileiro, considerando os três níveis de complexidade do sistema de saúde: atenção primária à saúde e níveis secundários. São propostos protocolos de investigação diagnóstica abrangendo testagem cognitiva, avaliação comportamental, avaliação fonoaudiológica, exames laboratoriais e de neuroimagem.
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Affiliation(s)
- Leonardo Cruz de Souza
- Universidade Federal de Minas Gerais, Brasil; Universidade Federal de Minas Gerais, Brasil
| | | | - Thais Helena Machado
- Universidade Federal de Minas Gerais, Brasil; Universidade Federal de Minas Gerais, Brasil
| | | | | | | | - Breno José Alencar Pires Barbosa
- Universidade de São Paulo, Brasil; Universidade Federal de Pernambuco, Brasil; Instituto de Medicina Integral Prof. Fernando Figueira, Brasil
| | - Lucas Porcello Schilling
- Pontifícia Universidade do Rio Grande do Sul, Brasil; Pontifícia Universidade do Rio Grande do Sul, Brasil; Pontifícia Universidade do Rio Grande do Sul, Brasil
| | | | | | | | - Paulo Caramelli
- Universidade Federal de Minas Gerais, Brasil; Universidade Federal de Minas Gerais, Brasil
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17
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Souza LCD, Hosogi ML, Machado TH, Carthery-Goulart MT, Yassuda MS, Smid J, Barbosa BJAP, Schilling LP, Balthazar MLF, Frota NAF, Vale FAC, Caramelli P, Bertolucci PHF, Chaves MLF, Brucki SMD, Nitrini R, Bahia VS, Takada LT. Diagnosis of frontotemporal dementia: recommendations of the Scientific Department of Cognitive Neurology and Aging of the Brazilian Academy of Neurology. Dement Neuropsychol 2022. [DOI: 10.1590/1980-5764-dn-2022-s103en] [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] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
ABSTRACT “Frontotemporal dementia” (FTD) is a clinical syndrome characterized by the focal involvement of the frontal and/or temporal lobes. FTD has three clinical phenotypes: the behavioral variant and two linguistic subtypes, namely, non-fluent/agrammatic primary progressive aphasia (PPA-NF/A) and semantic PPA (PPA-S). FTD is the second most common cause of dementia in individuals under the age of 65 years. This article presents recommendations for the diagnosis of FTD in the Brazilian scenario, considering the three levels of complexity of the health system: primary health care, secondary and tertiary levels. Diagnostic guidelines are proposed, including cognitive testing, behavioral and language assessments, laboratory tests, and neuroimaging.
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Affiliation(s)
- Leonardo Cruz de Souza
- Universidade Federal de Minas Gerais, Brasil; Universidade Federal de Minas Gerais, Brasil
| | | | - Thais Helena Machado
- Universidade Federal de Minas Gerais, Brasil; Universidade Federal de Minas Gerais, Brasil
| | | | | | | | - Breno José Alencar Pires Barbosa
- Universidade de São Paulo, Brasil; Universidade Federal de Pernambuco, Brasil; Instituto de Medicina Integral Prof. Fernando Figueira, Brasil
| | - Lucas Porcello Schilling
- Pontifícia Universidade do Rio Grande do Sul, Brasil; Pontifícia Universidade do Rio Grande do Sul, Brasil; Pontifícia Universidade do Rio Grande do Sul, Brasil
| | | | | | | | - Paulo Caramelli
- Universidade Federal de Minas Gerais, Brasil; Universidade Federal de Minas Gerais, Brasil
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18
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Shao X, Luo D, Zhou Y, Xiao Z, Wu J, Tan LH, Qiu S, Yuan D. Myeloarchitectonic plasticity in elite golf players' brains. Hum Brain Mapp 2022; 43:3461-3468. [PMID: 35420729 PMCID: PMC9248307 DOI: 10.1002/hbm.25860] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/18/2022] [Accepted: 03/27/2022] [Indexed: 11/14/2022] Open
Abstract
Human neuroimaging studies have demonstrated that exercise influences the cortical structural plasticity as indexed by gray or white matter volume. It remains elusive, however, whether exercise affects cortical changes at the finer‐grained myelination structure level. To answer this question, we scanned 28 elite golf players in comparison with control participants, using a novel neuroimaging technique—quantitative magnetic resonance imaging (qMRI). The data showed myeloarchitectonic plasticity in the left temporal pole of the golf players: the microstructure of this brain region of the golf players was better proliferated than that of control participants. In addition, this myeloarchitectonic plasticity was positively related to golfing proficiency. Our study has manifested that myeloarchitectonic plasticity could be induced by exercise, and thus, shed light on the potential benefits of exercise on brain health and cognitive enhancement.
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Affiliation(s)
- Xueyun Shao
- School of Sports, Shenzhen University, Shenzhen, China.,Shenzhen Institute of Neuroscience, Shenzhen, China
| | - Daiyi Luo
- Shenzhen Institute of Neuroscience, Shenzhen, China
| | - Yulong Zhou
- Shenzhen Institute of Neuroscience, Shenzhen, China
| | - Zhuoni Xiao
- Shenzhen Institute of Neuroscience, Shenzhen, China.,Department of Psychology, University of Edinburgh, Edinburgh, UK
| | - Jinjian Wu
- Department of Radiology, First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Li Hai Tan
- Shenzhen Institute of Neuroscience, Shenzhen, China.,Guangdong-Hongkong-Macau Institute of CNS Regeneration, Jinan University, Shenzhen, China.,Neuroscience and Neurorehabilitation Institute, University of Health and Rehabilitation Sciences, Qingdao, Shandong, China
| | - Shijun Qiu
- Department of Radiology, First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Di Yuan
- Shenzhen Institute of Neuroscience, Shenzhen, China.,Department of Psychology, The Chinese University of Hong Kong, Hong Kong, SAR, China
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19
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Semenza C. Proper names and personal identity. Handb Clin Neurol 2022; 187:287-302. [PMID: 35964978 DOI: 10.1016/b978-0-12-823493-8.00008-0] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The present chapter reviews the body of knowledge acquired so far about the role of the temporal lobe in representing and processing proper names and individual identity information. This body of knowledge has been collected with the contribution of several methodologies, including neuroimaging, electrophysiological techniques, and, critically, clinical observations. All this evidence converges in showing that proper names and related information are processed in at least partially independent neural networks mainly placed in the anterior areas of the left temporal lobe. A description of the properties distinguishing proper names from common names is provided. These properties, it will be claimed, made a different anatomical organization necessary and, possibly, determined the evolution of the brain to support this advantageous distinction in meeting environmental demands.
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Affiliation(s)
- Carlo Semenza
- Department of Neuroscience, Padova Neuroscience Center, University of Padova, Padova, Italy.
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20
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Medvedeva A, Grishina D. The possibilities of differential diagnosis of primary progressive aphasia. Zh Nevrol Psikhiatr Im S S Korsakova 2022; 122:121-127. [DOI: 10.17116/jnevro2022122091121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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21
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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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22
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Abstract
The chapter covers the clinical syndrome of a primary progressive aphasia (PPA), the demographics of this rare neurodegenerative disease, defining clinical and neuroanatomic characteristics of each PPA variant, disease progression, and behavioral features. The chapter begins with a brief introduction that includes references to seminal papers that defined this clinical syndrome and its three variants. The classic PPA subtypes discussed in the chapter are semantic variant PPA (svPPA), nonfluent/agrammatic PPA (nfaPPA), and logopenic variant PPA (lvPPA). The key language and cognitive characteristics, and language tasks that can elicit these language impairments, are detailed. Overlap in the clinical profiles of the PPA variants, which make differential diagnosis challenging, are explained. Disease progression is described, revealing that the PPA variants become more similar over time. Although PPA is language-predominant dementia, there are behavioral manifestations, particularly in svPPA. Changes in behavior in this variant are addressed as well as behavioral changes in nfaPPA and lvPPA that are less well recognized. The patterns of atrophy in the left temporal, parietal, and/or frontal cortices unique to each PPA variant are described. The underlying neuropathologies of the PPA variants are discussed, specifically tauopathies and non-tauopathies associated with svPPA and nfaPPA and Alzheimer's disease pathology in lvPPA.
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Affiliation(s)
- Donna C. Tippett
- Departments of Neurology, Otolaryngology—Head and Neck Surgery, and Physical Medicine and Rehabilitation, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
| | - Zafer Keser
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
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23
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Gainotti G. Is There a Causal Link between the Left Lateralization of Language and Other Brain Asymmetries? A Review of Data Gathered in Patients with Focal Brain Lesions. Brain Sci 2021; 11:1644. [PMID: 34942946 PMCID: PMC8699490 DOI: 10.3390/brainsci11121644] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 12/01/2021] [Accepted: 12/11/2021] [Indexed: 11/16/2022] Open
Abstract
This review evaluated if the hypothesis of a causal link between the left lateralization of language and other brain asymmetries could be supported by a careful review of data gathered in patients with unilateral brain lesions. In a short introduction a distinction was made between brain activities that could: (a) benefit from the shaping influences of language (such as the capacity to solve non-verbal cognitive tasks and the increased levels of consciousness and of intentionality); (b) be incompatible with the properties and the shaping activities of language (e.g., the relations between language and the automatic orienting of visual-spatial attention or between cognition and emotion) and (c) be more represented on the right hemisphere due to competition for cortical space. The correspondence between predictions based on the theoretical impact of language on other brain functions and data obtained in patients with lesions of the right and left hemisphere was then assessed. The reviewed data suggest that different kinds of hemispheric asymmetries observed in patients with unilateral brain lesions could be subsumed by common mechanisms, more or less directly linked to the left lateralization of language.
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Affiliation(s)
- Guido Gainotti
- Institute of Neurology, Catholic University, 00168 Rome, Italy
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24
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Gao K, Fan Z, Su J, Zeng LL, Shen H, Zhu J, Hu D. Deep Transfer Learning for Cerebral Cortex Using Area-Preserving Geometry Mapping. Cereb Cortex 2021; 32:2972-2984. [PMID: 34791082 DOI: 10.1093/cercor/bhab394] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 06/20/2021] [Revised: 09/01/2021] [Accepted: 10/03/2021] [Indexed: 01/17/2023] Open
Abstract
Limited sample size hinders the application of deep learning in brain image analysis, and transfer learning is a possible solution. However, most pretrained models are 2D based and cannot be applied directly to 3D brain images. In this study, we propose a novel framework to apply 2D pretrained models to 3D brain images by projecting surface-based cortical morphometry into planar images using computational geometry mapping. Firstly, 3D cortical meshes are reconstructed from magnetic resonance imaging (MRI) using FreeSurfer and projected into 2D planar meshes with topological preservation based on area-preserving geometry mapping. Then, 2D deep models pretrained on ImageNet are adopted and fine-tuned for cortical image classification on morphometric shape metrics. We apply the framework to sex classification on the Human Connectome Project dataset and autism spectrum disorder (ASD) classification on the Autism Brain Imaging Data Exchange dataset. Moreover, a 2-stage transfer learning strategy is suggested to boost the ASD classification performance by using the sex classification as an intermediate task. Our framework brings significant improvement in sex classification and ASD classification with transfer learning. In summary, the proposed framework builds a bridge between 3D cortical data and 2D models, making 2D pretrained models available for brain image analysis in cognitive and psychiatric neuroscience.
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Affiliation(s)
- Kai Gao
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
| | - Zhipeng Fan
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
| | - Jianpo Su
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
| | - Ling-Li Zeng
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
| | - Hui Shen
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
| | - Jubo Zhu
- College of Science, National University of Defense Technology, Changsha 410073, China
| | - Dewen Hu
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China.,Pazhou Lab, Guangzhou 510330, China
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Diveica V, Koldewyn K, Binney RJ. Establishing a role of the semantic control network in social cognitive processing: A meta-analysis of functional neuroimaging studies. Neuroimage 2021; 245:118702. [PMID: 34742940 DOI: 10.1016/j.neuroimage.2021.118702] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 10/01/2021] [Accepted: 10/30/2021] [Indexed: 11/24/2022] Open
Abstract
The contribution and neural basis of cognitive control is under-specified in many prominent models of socio-cognitive processing. Important outstanding questions include whether there are multiple, distinguishable systems underpinning control and whether control is ubiquitously or selectively engaged across different social behaviours and task demands. Recently, it has been proposed that the regulation of social behaviours could rely on brain regions specialised in the controlled retrieval of semantic information, namely the anterior inferior frontal gyrus (IFG) and posterior middle temporal gyrus. Accordingly, we investigated for the first time whether the neural activation commonly found in social functional neuroimaging studies extends to these 'semantic control' regions. We conducted five coordinate-based meta-analyses to combine results of 499 fMRI/PET experiments and identified the brain regions consistently involved in semantic control, as well as four social abilities: theory of mind, trait inference, empathy and moral reasoning. This allowed an unprecedented parallel review of the neural networks associated with each of these cognitive domains. The results confirmed that the anterior left IFG region involved in semantic control is reliably engaged in all four social domains. This supports the hypothesis that social cognition is partly regulated by the neurocognitive system underpinning semantic control.
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Harrington DL, Shen Q, Sadeghi V, Huang M, Litvan I, Wei X, Lee RR. Semantic Recollection in Parkinson's Disease: Functional Reconfiguration and MAPT Variants. Front Aging Neurosci 2021; 13:727057. [PMID: 34616286 PMCID: PMC8489380 DOI: 10.3389/fnagi.2021.727057] [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: 06/17/2021] [Accepted: 08/18/2021] [Indexed: 01/16/2023] Open
Abstract
Decline in semantic cognition in early stages of Parkinson’s disease (PD) is a leading risk factor for future dementia, yet the underlying neural mechanisms are not understood. The present study addressed this gap by investigating the functional connectivity of regions involved in semantic recollection. We further examined whether microtubule-associated protein tau (MAPT) risk variants, which may accelerate cognitive decline, altered the strength of regional functional connections. Cognitively normal PD and healthy elder controls underwent fMRI while performing a fame-discrimination task, which activates the semantic network. Analyses focused on disturbances in fame-modulated functional connectivity in PD for regions that govern semantic recollection and interrelated processes. Group differences were found in multiple connectivity features, which were reduced into principal components that reflected the strength of fame-modulated regional couplings with other brain areas. Despite the absence of group differences in semantic cognition, two aberrant connectivity patterns were uncovered in PD. One pattern was related to a loss in frontal, parietal, and temporal connection topologies that governed semantic recollection in older controls. Another pattern was characterized by functional reconfiguration, wherein frontal, parietal, temporal and caudate couplings were strengthened with areas that were not recruited by controls. Correlations between principal component scores and cognitive measures suggested that reconfigured frontal coupling topologies in PD supported compensatory routes for accessing semantic content, whereas reconfigured parietal, temporal, and caudate connection topologies were detrimental or unrelated to cognition. Increased tau transcription diminished recruitment of compensatory frontal topologies but amplified recruitment of parietal topologies that were unfavorable for cognition. Collectively, the findings provide a new understanding of early vulnerabilities in the functional architecture of regional connectivity during semantic recollection in cognitively normal PD. The findings also have implications for tracking cognitive progression and selecting patients who stand to benefit from therapeutic interventions.
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Affiliation(s)
- Deborah L Harrington
- Research and Radiology Services, VA San Diego Healthcare System, San Diego, CA, United States.,Department of Radiology, University of California, San Diego, La Jolla, CA, United States
| | - Qian Shen
- Research and Radiology Services, VA San Diego Healthcare System, San Diego, CA, United States.,Department of Radiology, University of California, San Diego, La Jolla, CA, United States
| | - Vida Sadeghi
- Research and Radiology Services, VA San Diego Healthcare System, San Diego, CA, United States
| | - Mingxiong Huang
- Research and Radiology Services, VA San Diego Healthcare System, San Diego, CA, United States.,Department of Radiology, University of California, San Diego, La Jolla, CA, United States
| | - Irene Litvan
- Department of Neurosciences, University of California, San Diego, La Jolla, CA, United States
| | - Xiangyu Wei
- Research and Radiology Services, VA San Diego Healthcare System, San Diego, CA, United States
| | - Roland R Lee
- Research and Radiology Services, VA San Diego Healthcare System, San Diego, CA, United States.,Department of Radiology, University of California, San Diego, La Jolla, CA, United States
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Alonso MA, Díez-Álamo AM, Gómez-Ariza CJ, Díez E, Fernandez A. Transcranial Direct Current Stimulation Over the Right Anterior Temporal Lobe Does Not Modulate False Recognition. Front Psychol 2021; 12:718118. [PMID: 34603142 PMCID: PMC8484642 DOI: 10.3389/fpsyg.2021.718118] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 08/20/2021] [Indexed: 11/13/2022] Open
Abstract
Non-invasive transcranial direct current stimulation (tDCS) over the left anterior temporal lobe (ATL) has been shown to cause a reduction in the rate of false memories with semantically related words. Such a reduction seems to be specific to false memories induced by the study of associative lists, but is not observed when the studied lists are categorical in nature. These findings are interpreted as evidence that the left ATL functions as an integration hub that is crucial for the binding of semantic information into coherent representations of concepts. In order to investigate whether the right ATL might also contribute to semantic integration in the processing of verbal associative material, a follow-up tDCS study was conducted with the stimulation at study lateralized on the right ATL. A sample of 75 undergraduate students participated in an experiment in which they studied 8 associative lists and 8 categorical lists. One third of the participants studied all their word lists under anodal stimulation, another third studied under cathodal stimulation and the other third under sham stimulation. Results showed that stimulation of the right ATL by tDCS does not modulate false recognition for either association-related critical words or category-related critical words. These results provide preliminary support to views positing asymmetric connectivity between the anterior temporal lobes and the semantic representational network, and provide evidence for understanding bilateral brain dynamics and the nature of semantically induced memory distortions.
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Affiliation(s)
- María Angeles Alonso
- Instituto Universitario de Neurociencia (IUNE), University of La Laguna, San Cristóbal de La Laguna, Spain.,Institute on Community Integration (INICO), University of Salamanca, Salamanca, Spain
| | - Antonio M Díez-Álamo
- Institute on Community Integration (INICO), University of Salamanca, Salamanca, Spain
| | | | - Emiliano Díez
- Instituto Universitario de Neurociencia (IUNE), University of La Laguna, San Cristóbal de La Laguna, Spain.,Institute on Community Integration (INICO), University of Salamanca, Salamanca, Spain
| | - Angel Fernandez
- Instituto Universitario de Neurociencia (IUNE), University of La Laguna, San Cristóbal de La Laguna, Spain.,Institute on Community Integration (INICO), University of Salamanca, Salamanca, Spain
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Hutchings R, Palermo R, Hazelton JL, Piguet O, Kumfor F. Considering Hemispheric Specialization in Emotional Face Processing: An Eye Tracking Study in Left- and Right-Lateralised Semantic Dementia. Brain Sci 2021; 11:brainsci11091195. [PMID: 34573215 PMCID: PMC8472320 DOI: 10.3390/brainsci11091195] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/25/2021] [Accepted: 09/01/2021] [Indexed: 01/27/2023] Open
Abstract
Face processing relies on a network of occipito-temporal and frontal brain regions. Temporal regions are heavily involved in looking at and processing emotional faces; however, the contribution of each hemisphere to this process remains under debate. Semantic dementia (SD) is a rare neurodegenerative brain condition characterized by anterior temporal lobe atrophy, which is either predominantly left- (left-SD) or right-lateralised (right-SD). This syndrome therefore provides a unique lesion model to understand the role of laterality in emotional face processing. Here, we investigated facial scanning patterns in 10 left-SD and 6 right-SD patients, compared to 22 healthy controls. Eye tracking was recorded via a remote EyeLink 1000 system, while participants passively viewed fearful, happy, and neutral faces over 72 trials. Analyses revealed that right-SD patients had more fixations to the eyes than controls in the Fear (p = 0.04) condition only. Right-SD patients also showed more fixations to the eyes than left-SD patients in all conditions: Fear (p = 0.01), Happy (p = 0.008), and Neutral (p = 0.04). In contrast, no differences between controls and left-SD patients were observed for any emotion. No group differences were observed for fixations to the mouth, or the whole face. This study is the first to examine patterns of facial scanning in left- versus right- SD, demonstrating more of a focus on the eyes in right-SD. Neuroimaging analyses showed that degradation of the right superior temporal sulcus was associated with increased fixations to the eyes. Together these results suggest that right lateralised brain regions of the face processing network are involved in the ability to efficiently utilise changeable cues from the face.
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Affiliation(s)
- Rosalind Hutchings
- Brain & Mind Centre, School of Psychology, The University of Sydney, Sydney, NSW 2050, Australia; (R.H.); (J.L.H.); (O.P.)
| | - Romina Palermo
- School of Psychological Science, The University of Western Australia, Perth, WA 6009, Australia;
| | - Jessica L. Hazelton
- Brain & Mind Centre, School of Psychology, The University of Sydney, Sydney, NSW 2050, Australia; (R.H.); (J.L.H.); (O.P.)
| | - Olivier Piguet
- Brain & Mind Centre, School of Psychology, The University of Sydney, Sydney, NSW 2050, Australia; (R.H.); (J.L.H.); (O.P.)
| | - Fiona Kumfor
- Brain & Mind Centre, School of Psychology, The University of Sydney, Sydney, NSW 2050, Australia; (R.H.); (J.L.H.); (O.P.)
- Correspondence: ; Tel.: +61-2-9114-4181
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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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Abstract
AIM In this study, we aimed to establish Turkish normative data for two versions of The Pyramids and Palm Trees Test (PPTT), pictorial (PPTT-P), and verbal (PPTT-V) using Turkish culture-specific items. METHODS The study sample involves 181 participants stratified into three age groups and further stratified into three education levels and gender. The participants were given the PPTT versions along with a neuropsychological battery. Participants in the aged group were further screened for cognition and depression. The internal consistency, the convergent and discriminant validity of the PPTT versions, and predictors of the performance in the PPTT versions are statistically analyzed. RESULTS The Cronbach's alpha coefficients for PPTT-P and PPTT-V were found as 0.48. and 0.42, respectively. Among the demographic variables, only education had an effect on the performances of both versions. Education level explained 21.2% of the variance in PPTT-P performance and 13.7% of the variance in PPTT-V performance. A cutoff score of 45 is proposed for the individuals with primary school education and 47 for those with higher education. Results suggested that both versions had moderate convergent but no discriminant validity. CONCLUSIONS Present findings suggest that PPTT is a useful neuropsychological instrument for assessing semantic memory in the Turkish population.
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Affiliation(s)
- Meral Bozdemir
- Department of Psychology, Maltepe University, Istanbul, Turkey
| | - I Hakan Gurvit
- Istanbul Faculty of Medicine, Department of Neurology, Behavioral Neurology and Movement Disorders Unit, Istanbul University, Istanbul, Turkey
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Stellmann JP, Wanke N, Maarouf A, Gellißen S, Heesen C, Audoin B, Gold SM, Zaaraoui W, Poettgen J. Cognitive performance shows domain specific associations with regional cortical thickness in multiple sclerosis. Neuroimage Clin 2021; 30:102606. [PMID: 33744503 PMCID: PMC7985400 DOI: 10.1016/j.nicl.2021.102606] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 01/15/2021] [Accepted: 02/15/2021] [Indexed: 11/25/2022]
Abstract
Cognitive impairment correlates with loss of cortical thickness in MS. Cognitive tests show distinctive regional associations with cortical thickness. Some regions, such as the left insula, correlate with multiple tests. Associations patterns seem reproducible in patients with very mild impairment. Better localization of cognitive functions may improve future MRI studies.
Multiple Sclerosis (MS) patients often suffer from significant cognitive impairment. Earlier research has shown relationships between regional cortical atrophy and cognitive deterioration. However, due to a large number of neuropsychological assessments and a heterogenous pattern of cognitive deficits in MS patients, reported associations patterns are also heterogenous. Using an extensive neuropsychological battery of 23 different tasks, we explored domain (attention/information processing, memory, spatial processing, executive functioning) and task-specific associations with regional cortical thickness in a representative sample of MS patients (N = 97). Cortical regions associated with multiple cognitive tasks in the left hemisphere were predominantly located in the inferior insula (attention p < 0.001, memory p = 0.047, spatial processing p = 0.004, executive functioning p = 0.037), the gyrus frontalis superior (attention p = 0.015, memory p = 0.037, spatial processing p = 0.033, executive functioning p = 0.017) and temporal medial (attention p < 0.001, memory two clusters p = 0.016 and p < 0.001, executive functioning p = 0.016). In the right hemisphere, we detected the strongest association in the sulcus interparietalis with five cluster (attention SDMT p = 0.003 and TAP_DA p < 0.001; memory Rey recall p = 0.013 and VLMT verbal learning p = 0.016; spatial processing Rey copy p < 0.001). We replicated parts of our results in an independent sample of 30 mildly disabled MS patients. Moreover, comparisons to 29 healthy controls showed that the regional associations seemed to represent rather pathophysiological dependency than a physiological one. We believe that our results may prove useful in diagnosis and rehabilitation of cognitive impairments and may serve as guidance in future magnetic resonance imaging (MRI) studies.
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Affiliation(s)
- Jan-Patrick Stellmann
- Institut für Neuroimmunologie und Multiple Sklerose, Universitätsklinikum Hamburg-Eppendorf, Martinistr. 52, 20246 Hamburg, Germany; Klinik und Poliklinik für Neurologie, Universitätsklinikum Hamburg-Eppendorf, Martinistr. 52, 20246 Hamburg, Germany; APHM, Hopital de la Timone, CEMEREM, Marseille, France; Aix Marseille Univ, CNRS, CRMBM, Marseille, France.
| | - Nadine Wanke
- Institut für Neuroimmunologie und Multiple Sklerose, Universitätsklinikum Hamburg-Eppendorf, Martinistr. 52, 20246 Hamburg, Germany; Department of Cognitive Psychology, Institute of Psychology, University of Hamburg, Von-Melle-Park 5, 20146 Hamburg, Germany
| | - Adil Maarouf
- APHM, Hopital de la Timone, CEMEREM, Marseille, France; Aix Marseille Univ, CNRS, CRMBM, Marseille, France
| | - Susanne Gellißen
- Institut für Neuroimmunologie und Multiple Sklerose, Universitätsklinikum Hamburg-Eppendorf, Martinistr. 52, 20246 Hamburg, Germany; Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg Eppendorf, Hamburg, Martinistr. 52, 20246 Hamburg, Germany
| | - Christoph Heesen
- Institut für Neuroimmunologie und Multiple Sklerose, Universitätsklinikum Hamburg-Eppendorf, Martinistr. 52, 20246 Hamburg, Germany; Klinik und Poliklinik für Neurologie, Universitätsklinikum Hamburg-Eppendorf, Martinistr. 52, 20246 Hamburg, Germany
| | - Bertrand Audoin
- APHM, Hopital de la Timone, CEMEREM, Marseille, France; Aix Marseille Univ, CNRS, CRMBM, Marseille, France
| | - Stefan M Gold
- Institut für Neuroimmunologie und Multiple Sklerose, Universitätsklinikum Hamburg-Eppendorf, Martinistr. 52, 20246 Hamburg, Germany; Charité Universitätsmedizin Berlin, Klinik für Psychiatrie und Psychotherapie, Campus Benjamin Franklin, Hindenburgdamm 30, 12203 Berlin, Germany; Charité Universitätsmedizin Berlin, Medizinische Klinik m.S. Psychosomatik, Campus Benjamin Franklin, Hindenburgdamm 30, 12203 Berlin, Germany
| | - Wafaa Zaaraoui
- APHM, Hopital de la Timone, CEMEREM, Marseille, France; Aix Marseille Univ, CNRS, CRMBM, Marseille, France
| | - Jana Poettgen
- Institut für Neuroimmunologie und Multiple Sklerose, Universitätsklinikum Hamburg-Eppendorf, Martinistr. 52, 20246 Hamburg, Germany; Klinik und Poliklinik für Neurologie, Universitätsklinikum Hamburg-Eppendorf, Martinistr. 52, 20246 Hamburg, Germany
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Ishihara K, Kaneko S, Takahashi N, Asahi T. [A case suspected of Alzheimer type dementia showing multimodal (face and voice) person recognition disorder from face and voice]. Rinsho Shinkeigaku 2021; 61:182-187. [PMID: 33627581 DOI: 10.5692/clinicalneurol.cn-001510] [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] [Indexed: 11/05/2022]
Abstract
A 90-year-old woman presented with a multimodal (face and voice) person recognition disorder. Although she had moderate general cognitive impairment, her visual cognitive capacity, other than face recognition, was well preserved. She could identify the faces and voices of family members but could not recall the names and voices of relatives whom she met infrequently, famous individuals, or the medical staff. She could remember the first names and some information about prominent individuals when supplied with their surnames. Therefore, we thought that her person-specific semantic memory was intact but she was unable to access it through their faces and voices. MRI revealed predominantly right-sided bilateral anterior temporal lobe and hippocampal atrophy. SPECT images showed decreased blood flow in the bilateral anterior temporal lobes and inferior parietal lobule (heavily and predominantly right-sided), right posterior cingulate gyrus, and precuneus. Progressive person recognition disorder or prosopagnosia has been considered a right temporal variant of frontotemporal lobar degeneration because abnormal behaviors and psychiatric symptoms frequently coexist. However, no such symptoms were observed in this case, therefore we suspected dementia of the Alzheimer type.
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Affiliation(s)
- Kenji Ishihara
- Department of Neurology, Asahi Hospital of Neurology and Rehabilitation
| | - Sayaka Kaneko
- Department of Rehabilitation, Asahi Hospital of Neurology and Rehabilitation
| | | | - Toshiomi Asahi
- Department of Neurology, Asahi Hospital of Neurology and Rehabilitation
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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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34
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Poch C, Toledano R, García-Morales I, Alemán-Gómez Y, Gil-Nagel A, Campo P. Contributions of left and right anterior temporal lobes to semantic cognition: Evidence from patients with small temporopolar lesions. Neuropsychologia 2020; 152:107738. [PMID: 33383038 DOI: 10.1016/j.neuropsychologia.2020.107738] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 12/04/2020] [Accepted: 12/24/2020] [Indexed: 11/18/2022]
Abstract
Decades of research have increased the understanding of the contribution of the anterior temporal lobes (ATLs) to semantic cognition. Nonetheless, whether semantic processing of different types of information show a selective relationship with left and right ATLs, or whether semantic processing in the ATLs is independent of the modality of the input is currently unknown. There exists evidence supporting each of these alternatives. A fundamental objection to these findings is that they were obtained from studies with patients with brain damage affecting extensive regions, sometimes bilaterally. In the current study, we assessed a group of 38 temporal lobe epilepsy (TLE) patients with either left or right small epileptogenic lesions with a battery of commonly used semantic tasks that tested verbal and non-verbal semantic processing. We found that left TLE patients exhibited worse performance than controls on the verbal semantic tasks, as expected, but also on the non-verbal semantic task. On the other hand, performance of the right TLE group did not differ from controls on the non-verbal task, but was worse on a semantic fluency task. When performance between patient groups was compared, we found that left TLE not only did worse than right TLE on the naming task, but also on the non-verbal associative memory task. When considered together, current data do not support a strong view of input modality differences between left and right ATLs. Additionally, they provide evidence indicating that the left and right ATLs do not make similar contributions to a singular functional system for semantic representation.
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Affiliation(s)
- Claudia Poch
- Facultad de Lenguas y Educación, Universidad Nebrija, Spain
| | - Rafael Toledano
- Hospital Ruber Internacional, Epilepsy Unit, Neurology Department, Madrid, Spain; University Hospital of Ramón y Cajal, Epilepsy Unit, Neurology Department, Madrid, Spain
| | - Irene García-Morales
- Hospital Ruber Internacional, Epilepsy Unit, Neurology Department, Madrid, Spain; University Hospital of San Carlos, Epilepsy Unit, Neurology Department, Madrid, Spain
| | - Yasser Alemán-Gómez
- Center for Psychiatric Neuroscience, Department of Psychiatry, Centre Hospitalier Universitaire Vaudois (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland; Department of Radiology, Centre Hospitalier Universitaire Vaudois (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland; Medical Image Analysis Laboratory (MIAL), Centre D'Imagerie BioMédicale (CIBM), Lausanne, Switzerland
| | - Antonio Gil-Nagel
- Hospital Ruber Internacional, Epilepsy Unit, Neurology Department, Madrid, Spain
| | - Pablo Campo
- Department of Basic Psychology, Autonoma University of Madrid, Madrid, Spain.
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35
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Foley JA, Hyare H, Rees JH, Caine D. A case study investigating the role of the anterior temporal lobes in general semantics and semantics specific to persons, emotions and social conceptual knowledge. J Neuropsychol 2020; 15:428-447. [PMID: 33253487 DOI: 10.1111/jnp.12236] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 11/11/2020] [Indexed: 11/28/2022]
Abstract
The role of the anterior temporal lobes (ATLs) in semantic representation remains still much debated. Long thought to support domain-general semantic processing, recent accounts have alternatively suggested that they may be preferentially involved in the processing of person-related semantic knowledge. Several studies have supported such a distinction, but few have either examined both types of semantic processing together, or considered the role of potentially important confounding variables. Here, we address these issues by investigating both domain-general and person-specific semantic processing in a patient with focal ATL damage. The patient presents with dense anterograde and retrograde amnesia. Performance was impaired on tests of general semantic knowledge, but most striking deficits were for person-related semantics, including recognition and identification, knowledge of emotions and social conceptual knowledge. This unique case provides compelling evidence that, in addition to the role in general semantic knowledge, the ATLs are critical for person-related semantics.
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Affiliation(s)
- Jennifer A Foley
- Department of Neuropsychology, National Hospital for Neurology and Neurosurgery, London, UK.,Institute of Neurology, Queen Square, London, UK
| | - Harpreet Hyare
- Department of Neuro-radiology, National Hospital for Neurology and Neurosurgery, London, UK
| | - Jeremy H Rees
- Institute of Neurology, Queen Square, London, UK.,Department of Neuro-oncology, National Hospital for Neurology and Neurosurgery, London, UK
| | - Diana Caine
- Department of Neuropsychology, National Hospital for Neurology and Neurosurgery, London, UK
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36
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Abstract
Generalized lockdown caused by COVID-19, necessary yesterday, can no longer be that of tomorrow. It will no longer be possible to cram the humblest into cramped areas, but priority must be given to prevention (certainly with physical barriers, hydro-alcoholic gel, face masks), biological diagnosis, isolation, and also the care of any infected person. COVID-19 has hit the most vulnerable first in terms of biological inequality, such as Alzheimer's disease (AD) patients. Those with AD can have sensorial deficits and perception troubles, including visual difficulties and the inability to recognize faces and emotions. Face masks and physical distancing can disrupt facial familiarity and make it more difficult to recognize emotional facial expressions. It can provoke distress, which the visitor can perceive and feel obligated to take off the face mask. This gesture should not be considered as an act of indiscipline, but an act of empathy. Transparent face masks could improve the suffering of AD patients, distraught in the presence of their loved ones whose masks hide their faces. Wearing a mask should not be due to fear of punishment, but as an understanding of the responsibility of each individual in the control of the current pandemic. It may be necessary to convince more citizens of this civic duty, using clear and attractive messaging in order to standardize the wearing of face masks for the general public and to adapt them to the needs of patients.
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Affiliation(s)
- Roger Gil
- Emeriti Professor of Neurology, University Hospital, Poitiers, Director of the Ethical Reflection area of Nouvelle-Aquitaine, France
| | - Eva M Arroyo-Anlló
- Department of Psychobiology, University of Salamanca, Neuroscience Institute of Castilla-León, Spain
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37
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Gonzalez Alam TR, Krieger-Redwood K, Evans M, Rice GE, Smallwood J, Jefferies E. Intrinsic connectivity of anterior temporal lobe relates to individual differences in semantic retrieval for landmarks. Cortex 2021; 134:76-91. [PMID: 33259970 DOI: 10.1016/j.cortex.2020.10.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 09/28/2020] [Accepted: 10/16/2020] [Indexed: 01/16/2023]
Abstract
Contemporary neuroscientific accounts suggest that ventral anterior temporal lobe (ATL) acts as a bilateral heteromodal semantic hub, which is particularly critical for the specific-level knowledge needed to recognise unique entities, such as familiar landmarks and faces. There may also be graded functional differences between left and right ATL, relating to effects of modality (linguistic versus non-linguistic) and category (e.g., knowledge of people and places). Individual differences in intrinsic connectivity from left and right ATL might be associated with variation in semantic categorisation performance across these categories and modalities. We recorded resting-state fMRI in 74 individuals and, in a separate session, examined semantic categorisation. People with greater connectivity between left and right ATL were more efficient at categorising landmarks (e.g., Eiffel Tower), especially when these were presented visually. In addition, participants who showed stronger connectivity from right than left ATL to medial occipital cortex showed more efficient semantic categorisation of landmarks regardless of modality of presentation. These results can be interpreted in terms of graded differences in the patterns of connectivity across left and right ATL, which give rise to a bilateral yet partially segregated semantic 'hub'. More specifically, right ATL connectivity supports the efficient semantic categorisation of landmarks.
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38
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Rao SP, Nandi R, Dutt A, Kapur N, Harris JM, Thompson JC, Snowden JS. Distinct performance profiles on the Brixton test in frontotemporal dementia. J Neuropsychol 2020; 15:162-185. [PMID: 33058472 DOI: 10.1111/jnp.12228] [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: 05/30/2020] [Revised: 09/18/2020] [Indexed: 11/27/2022]
Abstract
The Brixton Spatial Anticipation Test is a well-established test of executive function that evaluates the capacity to abstract, follow, and switch rules. There has been remarkably little systematic analysis of Brixton test performance in the prototypical neurodegenerative disorder of the frontal lobes: behavioural variant frontotemporal dementia (bvFTD) or evaluation of the test's ability to distinguish frontal from temporal lobe degenerative disease. We carried out a quantitative and qualitative analysis of Brixton performance in 76 patients with bvFTD and 34 with semantic dementia (SD) associated with temporal lobe degeneration. The groups were matched for demographic variables and illness duration. The bvFTD group performed significantly more poorly (U = 348, p < .0001, r = .58), 53% of patients scoring in the poor-impaired range compared with 6% of SD patients. Whereas bvFTD patients showed problems in rule acquisition and switching, SD patients did not, despite their impaired conceptual knowledge. Error analysis revealed more frequent perseverative errors in bvFTD, particularly responses unconnected to the stimulus, as well as random responses. Stimulus-bound errors were rare. Within the bvFTD group, there was variation in performance profile, which could not be explained by demographic, neurological, or genetic factors. The findings demonstrate sensitivity and specificity of the Brixton test in identifying frontal lobe degenerative disease and highlight the clinical value of qualitative analysis of test performance. From a theoretical perspective, the findings provide evidence that semantic knowledge and the capacity to acquire rules are dissociable. Moreover, they exemplify the separable functional contributions to executive performance.
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Affiliation(s)
- Sulakshana P Rao
- Neuropsychology and Clinical Psychology Unit, Duttanagar Mental Health Centre, Kolkata, India
| | - Ranita Nandi
- Neuropsychology and Clinical Psychology Unit, Duttanagar Mental Health Centre, Kolkata, India
| | - Aparna Dutt
- Neuropsychology and Clinical Psychology Unit, Duttanagar Mental Health Centre, Kolkata, India
| | - Narinder Kapur
- Research Department of Clinical, Educational and Health Psychology, University College London, UK
| | - Jennifer M Harris
- Cerebral Function Unit, Manchester Centre for Clinical Neurosciences, Salford Royal NHS Foundation Trust, UK.,Division of Neuroscience and Experimental Psychology, School of Biological Sciences, University of Manchester, UK
| | - Jennifer C Thompson
- Cerebral Function Unit, Manchester Centre for Clinical Neurosciences, Salford Royal NHS Foundation Trust, UK.,Division of Neuroscience and Experimental Psychology, School of Biological Sciences, University of Manchester, UK
| | - Julie S Snowden
- Cerebral Function Unit, Manchester Centre for Clinical Neurosciences, Salford Royal NHS Foundation Trust, UK.,Division of Neuroscience and Experimental Psychology, School of Biological Sciences, University of Manchester, UK
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Arioli M, Gianelli C, Canessa N. Neural representation of social concepts: a coordinate-based meta-analysis of fMRI studies. Brain Imaging Behav 2020; 15:1912-1921. [DOI: 10.1007/s11682-020-00384-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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40
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Murray E, Bate S. Diagnosing developmental prosopagnosia: repeat assessment using the Cambridge Face Memory Test. R Soc Open Sci 2020; 7:200884. [PMID: 33047048 PMCID: PMC7540801 DOI: 10.1098/rsos.200884] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 08/12/2020] [Indexed: 05/11/2023]
Abstract
Developmental prosopagnosia (DP) is a cognitive condition characterized by a relatively selective impairment in face recognition. Currently, people are screened for DP via a single attempt at objective face-processing tests, usually all presented on the same day. However, several variables probably influence performance on these tests irrespective of actual ability, and the influence of repeat administration is also unknown. Here, we assess, for the first known time, the test-retest reliability of the Cambridge Face Memory Test (CFMT)-the leading task used worldwide to diagnose DP. This value was found to fall just below psychometric standards, and single-case analyses revealed further inconsistencies in performance that were not driven by testing location (online or in-person), nor the time-lapse between attempts. Later administration of an alternative version of the CFMT (the CFMT-Aus) was also found to be valuable in confirming borderline cases. Finally, we found that performance on the first 48 trials of the CFMT was equally as sensitive as the full 72-item score, suggesting that the instrument may be shortened for testing efficiency. We consider the implications of these findings for existing diagnostic protocols, concluding that two independent tasks of unfamiliar face memory should be completed on separate days.
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41
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Volfart A, Jonas J, Maillard L, Busigny T, Rossion B, Brissart H. Typical visual unfamiliar face individuation in left and right mesial temporal epilepsy. Neuropsychologia 2020; 147:107583. [PMID: 32771474 DOI: 10.1016/j.neuropsychologia.2020.107583] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 07/07/2020] [Accepted: 08/05/2020] [Indexed: 12/14/2022]
Abstract
Patients with chronic mesial temporal lobe epilepsy have difficulties at identifying familiar faces as well as at explicit old/new face recognition tasks. However, the extent to which these difficulties can be attributed to visual individuation of faces, independently of general explicit learning and semantic memory processes, is unknown. We tested 42 mesial temporal lobe epilepsy patients divided into two groups according to the side of epilepsy (left and right) and 42 matched controls on an extensive series of individuation tasks of unfamiliar faces and control visual stimuli, as well as on face detection, famous face recognition and naming, and face and non-face learning. Overall, both patient groups had difficulties at identifying and naming famous faces, and at explicitly learning face and non-face images. However, there was no group difference in accuracy between patients and controls at the two most widely used neuropsychological tests assessing visual individuation of unfamiliar faces (Benton Facial Recognition Test and Cambridge Face Memory Test). While patients with right mesial temporal lobe epilepsy were slowed down at all tasks, this effect was not specific to faces or even high-level stimuli. Importantly, both groups showed the same profile of response as typical participants across various stimulus manipulations, showing no evidence of qualitative processing impairments. Overall, these results point to largely preserved visual face individuation processes in patients with mesial temporal lobe epilepsy, with semantic and episodic memory difficulties being consistent with the localization of the neural structures involved in their epilepsy (anterior temporal cortex and hippocampus). These observations have implications for the prediction of neuropsychological outcomes in the case of surgery and support the validity of intracranial electroencephalographic recordings performed in this population to understand neural mechanisms of human face individuation, notably through intracranial electrophysiological recordings and stimulations.
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42
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Borghesani V, Battistella G, Mandelli ML, Welch A, Weis E, Younes K, Neuhaus J, Grinberg LT, Seeley WM, Spina S, Miller B, Miller Z, Gorno-Tempini ML. Regional and hemispheric susceptibility of the temporal lobe to FTLD-TDP type C pathology. Neuroimage Clin 2020; 28:102369. [PMID: 32798912 PMCID: PMC7426562 DOI: 10.1016/j.nicl.2020.102369] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 07/23/2020] [Accepted: 07/29/2020] [Indexed: 12/12/2022]
Abstract
Post-mortem studies show that focal anterior temporal lobe (ATL) neurodegeneration is most often caused by frontotemporal lobar degeneration TDP-43 type C pathology. Clinically, these patients are described with different terms, such as semantic variant primary progressive aphasia (svPPA), semantic dementia (SD), or right temporal variant frontotemporal dementia (FTD) depending on whether the predominant symptoms affect language, semantic knowledge for object or people, or socio-emotional behaviors. ATL atrophy presents with various degrees of lateralization, with right-sided cases considered rarer even though estimation of their prevalence is hampered by the paucity of studies on well-characterized, pathology-proven cohorts. Moreover, it is not clear whether left and right variants show a similar distribution of atrophy within the ATL cross-sectionally and longitudinally. Here we study the largest cohort to-date of pathology-proven TDP-43-C cases diagnosed during life as svPPA, SD or right temporal variant FTD. We analyzed clinical, cognitive, and neuroimaging data from 30 cases, a subset of which was followed longitudinally. Guided by recent structural and functional parcellation studies, we constructed four bilateral ATL regions of interest (ROIs). The computation of an atrophy lateralization index allowed the comparison of atrophy patterns between the two hemispheres. This led to an automatic, imaging-based classification of the cases as left-predominant or right-predominant. We then compared the two groups in terms of regional atrophy patterns within the ATL ROIs (cross-sectionally) and atrophy progression (longitudinally). Results showed that 40% of pathology proven cases of TDP-43-C diagnosed with a temporal variant presented with right-lateralized atrophy. Moreover, the findings of our ATL ROI analysis indicated that, irrespective of atrophy lateralization, atrophy distribution within both ATLs follows a medial-to-lateral gradient. Finally, in both left and right cases, atrophy appeared to progress to the contralateral ATL, and from the anterior temporal pole to posterior temporal and orbitofrontal regions. Taken together, our findings indicate that incipient right predominant ATL atrophy is common in TDP-43-C pathology, and that distribution of damage within the ATLs appears to be the same in left- and right- sided variants. Thus, regardless of differences in clinical phenotype and atrophy lateralization, both temporal variants of FTD should be viewed as a spectrum presentation of the same disease.
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Affiliation(s)
- V Borghesani
- Memory and Aging Center, Department of Neurology, University
of California San Francisco, United States.
| | - G Battistella
- Memory and Aging Center, Department of Neurology, University
of California San Francisco, United States
| | - M L Mandelli
- Memory and Aging Center, Department of Neurology, University
of California San Francisco, United States
| | - A Welch
- Memory and Aging Center, Department of Neurology, University
of California San Francisco, United States
| | - E Weis
- Memory and Aging Center, Department of Neurology, University
of California San Francisco, United States
| | - K Younes
- Memory and Aging Center, Department of Neurology, University
of California San Francisco, United States
| | - J Neuhaus
- Memory and Aging Center, Department of Neurology, University
of California San Francisco, United States
| | - L T Grinberg
- Memory and Aging Center, Department of Neurology, University
of California San Francisco, United States
| | - W M Seeley
- Memory and Aging Center, Department of Neurology, University
of California San Francisco, United States
| | - S Spina
- Memory and Aging Center, Department of Neurology, University
of California San Francisco, United States
| | - B Miller
- Memory and Aging Center, Department of Neurology, University
of California San Francisco, United States
| | - Z Miller
- Memory and Aging Center, Department of Neurology, University
of California San Francisco, United States
| | - M L Gorno-Tempini
- Memory and Aging Center, Department of Neurology, University
of California San Francisco, United States; Department of Neurology, Dyslexia Center, University of California, San Francisco, CA, United States
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43
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Macoir J, Pilote-Paradis S, Lacoste L, Proulx M, Auclair-Ouellet N. Of logos and men: semantic memory impairment for unique entities in a case of semantic variant of primary progressive aphasia. Neurocase 2020; 26:188-196. [PMID: 32615858 DOI: 10.1080/13554794.2020.1772311] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
In this study, an individual (NG) with the semantic varient of primary progressive aphasis (svPPA) was assessed with tasks designed to investigate the recognition and activation of semantic knowledge about unique entities. NG had significant difficulties in the recognition of brand names and famous names but was largely unimpaired in the recognition of logos and famous faces. However, she was impaired in tasks requiring the activation of semantic representations of logos, brand names, famous faces, and famous names. These results suggest that the recognition of unique entities results from the interaction of perceptual and conceptual processes and, that the ability to activate semantic information about these entities can be affected in svPPA.
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Affiliation(s)
- J Macoir
- Faculté de Médecine, Département de Réadaptation, Université Laval , Québec, Canada.,Centre De Recherche CERVO - Brain Research Centre , Québec, Canada
| | - S Pilote-Paradis
- Faculté de Médecine, Département de Réadaptation, Université Laval , Québec, Canada
| | - L Lacoste
- Faculté de Médecine, Département de Réadaptation, Université Laval , Québec, Canada
| | - M Proulx
- Faculté de Médecine, Département de Réadaptation, Université Laval , Québec, Canada
| | - N Auclair-Ouellet
- School of Communication Sciences and Disorders, Faculty of Medicine, McGill University , Montreal, Canada.,Language and Music, Centre for Research on Brain , Montreal, Canada.,Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal , Montreal, Canada
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44
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Pisoni A, Sperandeo PR, Romero Lauro LJ, Papagno C. The Role of the Left and Right Anterior Temporal Poles in People Naming and Recognition. Neuroscience 2020; 440:175-85. [DOI: 10.1016/j.neuroscience.2020.05.040] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 05/21/2020] [Accepted: 05/23/2020] [Indexed: 01/27/2023]
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45
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Chen Y, Huang L, Chen K, Ding J, Zhang Y, Yang Q, Lv Y, Han Z, Guo Q. White matter basis for the hub-and-spoke semantic representation: evidence from semantic dementia. Brain 2020; 143:1206-1219. [PMID: 32155237 PMCID: PMC7191302 DOI: 10.1093/brain/awaa057] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [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: 07/31/2019] [Revised: 01/04/2020] [Accepted: 01/20/2020] [Indexed: 12/28/2022] Open
Abstract
The hub-and-spoke semantic representation theory posits that semantic knowledge is processed in a neural network, which contains an amodal hub, the sensorimotor modality-specific regions, and the connections between them. The exact neural basis of the hub, regions and connectivity remains unclear. Semantic dementia could be an ideal lesion model to construct the semantic network as this disease presents both amodal and modality-specific semantic processing (e.g. colour) deficits. The goal of the present study was to identify, using an unbiased data-driven approach, the semantic hub and its general and modality-specific semantic white matter connections by investigating the relationship between the lesion degree of the network and the severity of semantic deficits in 33 patients with semantic dementia. Data of diffusion-weighted imaging and behavioural performance in processing knowledge of general semantic and six sensorimotor modalities (i.e. object form, colour, motion, sound, manipulation and function) were collected from each subject. Specifically, to identify the semantic hub, we mapped the white matter nodal degree value (a graph theoretical index) of the 90 regions in the automated anatomical labelling atlas with the general semantic abilities of the patients. Of the regions, only the left fusiform gyrus was identified as the hub because its structural connectivity strength (i.e. nodal degree value) could significantly predict the general semantic processing of the patients. To identify the general and modality-specific semantic connections of the semantic hub, we separately correlated the white matter integrity values of each tract connected with the left fusiform gyrus, with the performance for general semantic processing and each of six semantic modality processing. The results showed that the hub region worked in concert with nine other regions in the semantic memory network for general semantic processing. Moreover, the connection between the hub and the left calcarine was associated with colour-specific semantic processing. The observed effects could not be accounted for by potential confounding variables (e.g. total grey matter volume, regional grey matter volume and performance on non-semantic control tasks). Our findings refine the neuroanatomical structure of the semantic network and underline the critical role of the left fusiform gyrus and its connectivity in the network.
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Affiliation(s)
- Yan Chen
- State Key Laboratory of Cognitive Neuroscience and Learning and IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China.,College of Biomedical Engineering and Instrument Sciences, Zhejiang University, Hangzhou 310027, China
| | - Lin Huang
- Department of Gerontology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Keliang Chen
- Department of Neurology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Junhua Ding
- State Key Laboratory of Cognitive Neuroscience and Learning and IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China
| | - Yumei Zhang
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China
| | - Qing Yang
- Department of Neurology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Yingru Lv
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Zaizhu Han
- State Key Laboratory of Cognitive Neuroscience and Learning and IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China
| | - Qihao Guo
- Department of Gerontology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
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46
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Luzzi S, Baldinelli S, Ranaldi V, Fiori C, Plutino A, Fringuelli FM, Silvestrini M, Baggio G, Reverberi C. The neural bases of discourse semantic and pragmatic deficits in patients with frontotemporal dementia and Alzheimer's disease. Cortex 2020; 128:174-191. [DOI: 10.1016/j.cortex.2020.03.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Revised: 06/15/2019] [Accepted: 03/05/2020] [Indexed: 12/13/2022]
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47
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Swanson SJ, Conant LL, Humphries CJ, LeDoux M, Raghavan M, Mueller WM, Allen L, Gross WL, Anderson CT, Carlson CE, Busch RM, Lowe M, Tivarus ME, Drane DL, Loring DW, Jacobs M, Morgan VL, Szaflarski J, Bonilha L, Bookheimer S, Grabowski T, Phatak V, Vannest J, Binder JR. Changes in description naming for common and proper nouns after left anterior temporal lobectomy. Epilepsy Behav 2020; 106:106912. [PMID: 32179500 PMCID: PMC7195239 DOI: 10.1016/j.yebeh.2020.106912] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 12/06/2019] [Revised: 01/10/2020] [Accepted: 01/11/2020] [Indexed: 11/28/2022]
Abstract
Numerous studies have shown that surgical resection of the left anterior temporal lobe (ATL) is associated with a decline in object naming ability (Hermann et al., 1999). In contrast, few studies have examined the effects of left ATL surgery on auditory description naming (ADN) or category-specific naming. Compared with object naming, which loads heavily on visual recognition processes, ADN provides a more specific measure of concept retrieval. The present study examined ADN declines in a large group of patients who were tested before and after left ATL surgery, using a 2 × 2 × 2 factorial manipulation of uniqueness (common vs. proper nouns), taxonomic category (living vs. nonliving things), and time (pre- vs. postsurgery). Significant declines occurred across all categories but were substantially larger for proper living (PL) concepts, i.e., famous individuals. The disproportionate decline in PL noun naming relative to other conditions is consistent with the notion that the left ATL is specialized not only for retrieval of unique entity concepts, but also plays a role in processing social concepts and person-specific features.
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Affiliation(s)
- Sara J. Swanson
- Department of Neurology, Medical College of Wisconsin, Milwaukee, WI
| | - Lisa L Conant
- Department of Neurology, Medical College of Wisconsin, Milwaukee, WI
| | | | - Megan LeDoux
- Department of Neurology, Medical College of Wisconsin, Milwaukee, WI
| | - Manoj Raghavan
- Department of Neurology, Medical College of Wisconsin, Milwaukee, WI
| | - Wade M. Mueller
- Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI
| | - Linda Allen
- Department of Neurology, Medical College of Wisconsin, Milwaukee, WI
| | - William L. Gross
- Department of Neurology, Medical College of Wisconsin, Milwaukee, WI
| | | | - Chad E. Carlson
- Department of Neurology, Medical College of Wisconsin, Milwaukee, WI
| | - Robyn M. Busch
- Department of Neurology, Cleveland Clinic, Cleveland, OH
| | - Mark Lowe
- Department of Radiology, Cleveland Clinic, Cleveland, OH
| | | | | | | | - Monica Jacobs
- Department of Psychiatry, Vanderbilt University Medical Center, Nashville, TN
| | - Victoria L. Morgan
- Department of Radiology, Vanderbilt University Medical Center, Nashville, TN
| | | | - Leonardo Bonilha
- Department of Neurology, Medical University of South Carolina, Charleston, SC
| | - Susan Bookheimer
- Department of Neurology, University of California, Los Angeles, CA
| | | | - Vaishali Phatak
- Department of Neurology, University of Washington, Seattle, WA
| | - Jennifer Vannest
- Department of Neurology, University of Cincinnati, Cincinnati, OH
| | - Jeffrey R. Binder
- Department of Neurology, Medical College of Wisconsin, Milwaukee, WI
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Volfart A, Jonas J, Maillard L, Colnat-Coulbois S, Rossion B. Neurophysiological evidence for crossmodal (face-name) person-identity representation in the human left ventral temporal cortex. PLoS Biol 2020; 18:e3000659. [PMID: 32243450 PMCID: PMC7159237 DOI: 10.1371/journal.pbio.3000659] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 04/15/2020] [Accepted: 03/09/2020] [Indexed: 11/21/2022] Open
Abstract
Putting a name to a face is a highly common activity in our daily life that greatly enriches social interactions. Although this specific person-identity association becomes automatic with learning, it remains difficult and can easily be disrupted in normal circumstances or neurological conditions. To shed light on the neural basis of this important and yet poorly understood association between different input modalities in the human brain, we designed a crossmodal frequency-tagging paradigm coupled to brain activity recording via scalp and intracerebral electroencephalography. In Experiment 1, 12 participants were presented with variable pictures of faces and written names of a single famous identity at a 4-Hz frequency rate while performing an orthogonal task. Every 7 items, another famous identity appeared, either as a face or a name. Robust electrophysiological responses were found exactly at the frequency of identity change (i.e., 4 Hz / 7 = 0.571 Hz), suggesting a crossmodal neural response to person identity. In Experiment 2 with twenty participants, two control conditions with periodic changes of identity for faces or names only were added to estimate the contribution of unimodal neural activity to the putative crossmodal face-name responses. About 30% of the response occurring at the frequency of crossmodal identity change over the left occipito-temporal cortex could not be accounted for by the linear sum of unimodal responses. Finally, intracerebral recordings in the left ventral anterior temporal lobe (ATL) in 7 epileptic patients tested with this paradigm revealed a small number of "pure" crossmodal responses, i.e., with no response to changes of identity for faces or names only. Altogether, these observations provide evidence for integration of verbal and nonverbal person identity-specific information in the human brain, highlighting the contribution of the left ventral ATL in the automatic retrieval of face-name identity associations.
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Affiliation(s)
- Angélique Volfart
- Université de Lorraine, CNRS, CRAN, Nancy, France
- Université Catholique de Louvain, Institute of Research in Psychological Science, Institute of Neuroscience, Louvain-La-Neuve, Belgium
| | - Jacques Jonas
- Université de Lorraine, CNRS, CRAN, Nancy, France
- Université de Lorraine, CHRU-Nancy, Service de Neurologie, Nancy, France
| | - Louis Maillard
- Université de Lorraine, CNRS, CRAN, Nancy, France
- Université de Lorraine, CHRU-Nancy, Service de Neurologie, Nancy, France
| | - Sophie Colnat-Coulbois
- Université de Lorraine, CNRS, CRAN, Nancy, France
- Université de Lorraine, CHRU-Nancy, Service de Neurochirurgie, Nancy, France
| | - Bruno Rossion
- Université de Lorraine, CNRS, CRAN, Nancy, France
- Université Catholique de Louvain, Institute of Research in Psychological Science, Institute of Neuroscience, Louvain-La-Neuve, Belgium
- Université de Lorraine, CHRU-Nancy, Service de Neurologie, Nancy, France
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Gainotti G. Representional and connectivity-based accounts of the cognitive consequences of atrophy of the right and left anterior temporal lobes. Cogn Neuropsychol 2020; 37:466-481. [PMID: 32174279 DOI: 10.1080/02643294.2020.1739011] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
According to the original "hub-and-spoke" model of conceptual representations, the neural network for semantic memory requires a single convergence zone located in the anterior temporal lobes (ATLs). However, a more recent version of this model acknowledges that a graded specialization of the left and right ATLs might emerge as a consequence of their differential connectivity with language and sensory-motor regions. A recent influential paper maintained that both the format of semantic representations (representational account) and their differential connectivity (connectivity account) could contribute to the cognitive consequences of atrophy to the left versus the right ATL atrophy. That paper, however, also raised questions as to whether the distinction between representational and connectivity accounts is a meaningful question. I argue that an important theoretical difference exists between the representational and the connectivity-based models and that investigations, based on this difference, should allow to choose between these alternative accounts.
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Affiliation(s)
- Guido Gainotti
- Institute of Neurology, Università Cattolica del Sacro Cuore, Rome, Italy.,Department of Clinical and Behavioral Neurology, IRCCS Fondazione Santa Lucia, Rome, Italy
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Gainotti G, Bonnì S, Maiella M, Carretta J, Zigiotto L, Sarubbo S, Papagno C. A Case of Right Temporal Lobectomy for Brain Tumor With Selective Semantic Pictorial Disorder. Cogn Behav Neurol 2020; 33:52-62. [PMID: 32132403 DOI: 10.1097/WNN.0000000000000220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Disagreement exists regarding representational and connectionist interpretations of semantic knowledge subserved by the right versus left anterior temporal lobes (ATLs). These interpretations predict a different pattern of impairment in patients with a right unilateral ATL lesion. We conducted a neuropsychological study of a selective semantic pictorial defect exhibited by a 57-year-old man who had undergone a right temporal lobectomy due to the presence of a glioblastoma. The patient was given the Thematic and Taxonomic Semantic task, in which individuals must select, within triplets of words or pictures, the best associates of living or nonliving stimuli, related by thematic or taxonomic links, and presented in the verbal or pictorial modality. The selectivity of the defect was documented by a comparison between the results obtained by our patient and those obtained by healthy controls on living items and on pictures with a thematic relation. The selectivity of the defect was confirmed by a within-subject analysis of the results obtained on all of the task's triplets and those obtained on the stimuli representing living entities with a taxonomic relation. The selectivity of this semantic pictorial defect mainly concerning living entities is consistent with the representational account of semantic defects observed in our patient. In the present case report, a right temporal lobectomy resulted in a selective semantic pictorial defect with the qualitative features predicted by the representational account of semantic defects observed after a unilateral ATL lesion.
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