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Pardina‐Torner H, De Paepe AE, Garcia‐Gorro C, Rodriguez‐Dechicha N, Vaquer I, Calopa M, Ruiz‐Idiago J, Mareca C, de Diego‐Balaguer R, Camara E. Disentangling the neurobiological bases of temporal impulsivity in Huntington's disease. Brain Behav 2024; 14:e3335. [PMID: 38450912 PMCID: PMC10918610 DOI: 10.1002/brb3.3335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 10/10/2023] [Accepted: 11/08/2023] [Indexed: 03/08/2024] Open
Abstract
BACKGROUND Despite its impact on daily life, impulsivity in Huntington's disease (HD) is understudied as a neuropsychiatric symptom. Our aim is to characterize temporal impulsivity in HD and to disentangle the white matter correlate associated with impulsivity. METHODS Forty-seven HD individuals and 36 healthy controls were scanned and evaluated for temporal impulsivity using a delay-discounting (DD) task and complementary Sensitivity to Punishment and Sensitivity to Reward Questionnaire. Diffusion tensor imaging was employed to characterize the structural connectivity of three limbic tracts: the uncinate fasciculus (UF), the accumbofrontal tract (NAcc-OFC), and the dorsolateral prefrontal cortex connectig the caudate nucleus (DLPFC-cn). Multiple linear regression analyses were applied to analyze the relationship between impulsive behavior and white matter microstructural integrity. RESULTS Our results revealed altered structural connectivity in the DLPC-cn, the NAcc-OFC and the UF in HD individuals. At the same time, the variability in structural connectivity of these tracts was associated with the individual differences in temporal impulsivity. Specifically, increased structural connectivity in the right NAcc-OFC and reduced connectivity in the left UF were associated with higher temporal impulsivity scores. CONCLUSIONS The present findings highlight the importance of investigating the spectrum of temporal impulsivity in HD. As, while less prevalent than other psychiatric features, this symptom is still reported to significantly impact the quality of life of patients and caregivers. This study provides evidence that individual differences observed in temporal impulsivity may be explained by variability in limbic frontostriatal tracts, while shedding light on the role of sensitivity to reward in modulating impulsive behavior through the selection of immediate rewards.
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Affiliation(s)
- Helena Pardina‐Torner
- Cognition and Brain Plasticity UnitBellvitge Biomedical Research Institute (IDIBELL)BarcelonaSpain
| | - Audrey E. De Paepe
- Cognition and Brain Plasticity UnitBellvitge Biomedical Research Institute (IDIBELL)BarcelonaSpain
| | - Clara Garcia‐Gorro
- Cognition and Brain Plasticity UnitBellvitge Biomedical Research Institute (IDIBELL)BarcelonaSpain
| | - Nadia Rodriguez‐Dechicha
- Hestia Duran i ReynalsHospital Duran i Reynals, Hospitalet de LlobregatBarcelonaSpain
- Departament de Psicologia Clínica i de la SalutUniversitat Autònoma de BarcelonaBarcelonaSpain
| | - Irene Vaquer
- Hestia Duran i ReynalsHospital Duran i Reynals, Hospitalet de LlobregatBarcelonaSpain
- Departament de Psicologia Clínica i de la SalutUniversitat Autònoma de BarcelonaBarcelonaSpain
| | - Matilde Calopa
- Movement Disorders Unit, Neurology ServiceHospital Universitari de BellvitgeBarcelonaSpain
- ICREA (Catalan Institute for Research and Advanced Studies)BarcelonaSpain
| | - Jesus Ruiz‐Idiago
- Department of Psychiatry and Forensic MedicineUniversitat Autònoma de BarcelonaBarcelonaSpain
- Hospital Mare de Deu de la MercèBarcelonaSpain
| | - Celia Mareca
- Department of Psychiatry and Forensic MedicineUniversitat Autònoma de BarcelonaBarcelonaSpain
- Hospital Mare de Deu de la MercèBarcelonaSpain
| | - Ruth de Diego‐Balaguer
- Cognition and Brain Plasticity UnitBellvitge Biomedical Research Institute (IDIBELL)BarcelonaSpain
- Department of Cognition, Development and Education PsychologyUniversitat de BarcelonaBarcelonaSpain
- Institute of NeurosciencesUniversitat de BarcelonaBarcelonaSpain
- ICREA (Catalan Institute for Research and Advanced Studies)BarcelonaSpain
| | - Estela Camara
- Cognition and Brain Plasticity UnitBellvitge Biomedical Research Institute (IDIBELL)BarcelonaSpain
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De Paepe AE, Garcia-Gorro C, Martinez-Horta S, Perez JP, Kulisevsky J, Rodriguez-Dechicha N, Vaquer I, Subira S, Calopa M, Santacruz P, Muñoz E, Mareca C, Ruiz-Idiago J, de Diego-Balaguer R, Camara E. Delineating apathy profiles in Huntington's disease with the short-Lille Apathy Rating Scale. Parkinsonism Relat Disord 2022; 105:83-89. [PMID: 36395542 DOI: 10.1016/j.parkreldis.2022.10.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 10/11/2022] [Accepted: 10/23/2022] [Indexed: 11/07/2022]
Abstract
INTRODUCTION Apathy, a prevalent feature in neurological disorders including Huntington's disease (HD), is characterized by a reduction in goal-directed behavior across cognitive, auto-activation (i.e., self-activating thoughts/behavior), and emotional domains. Nonetheless, current diagnostic criteria are incapable of distinguishing multidimensional apathy profiles. Meanwhile, the short-Lille Apathy Rating Scale (LARS-s) bears potential as an operative diagnostic tool to disentangle apathy dimensions in clinical practice. The present study thereby examines the psychometric properties and factor structure of the LARS-s to tap into apathy profiles and their underlying neural correlates in HD. METHODS Forty HD individuals were scanned and evaluated for apathy using the LARS-s, assessed for reliability and validity in HD, and the short-Problem Behavior Assessment (PBA-s). To study the dimensional structure of apathy, principal component analysis (PCA) of the LARS-s was implemented. Resulting factors were associated with gray matter volume through whole-brain voxel-based morphometry. RESULTS The LARS-s demonstrated satisfactory psychometric properties, sharing convergent validity with PBA-s apathy and discriminant validity against depression. PCA resulted in three factors representative of apathy profiles across cognitive, auto-activation, and emotional domains. Anatomically, global apathy was significantly related with large-scale motor, cognitive, and limbic networks. Exploratory analyses of apathy profiles revealed correspondence between each factor and distinct cortical and subcortical nodes. CONCLUSION The LARS-s is capable of capturing the multidimensional spectrum of apathy. At the same time, apathy profiles in HD are underpinned by functionally diverse neural networks. Such findings promote the continued study of apathy domains to pinpoint personalized therapeutic targets in neurologic disorders in addition to HD.
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Affiliation(s)
- Audrey E De Paepe
- Cognition and Brain Plasticity Unit Bellvitge Biomedical Research Institute - IDIBELL, 08097 L'Hospitalet de Llobregat, Barcelona, Spain; Department of Cognition, Development and Education Psychology, Universitat de Barcelona, Barcelona, Spain
| | - Clara Garcia-Gorro
- Cognition and Brain Plasticity Unit Bellvitge Biomedical Research Institute - IDIBELL, 08097 L'Hospitalet de Llobregat, Barcelona, Spain; Department of Cognition, Development and Education Psychology, Universitat de Barcelona, Barcelona, Spain
| | - Saül Martinez-Horta
- European Huntington's Disease Network; Movement Disorders Unit, Dept of Neurology, Biomedical Research Institute Sant Pau IIB-Sant Pau, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Universitat Autonoma de Barcelona (U.A.B.), Medicine Department, Barcelona, Spain
| | - Jesus Perez Perez
- European Huntington's Disease Network; Movement Disorders Unit, Dept of Neurology, Biomedical Research Institute Sant Pau IIB-Sant Pau, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Universitat Autonoma de Barcelona (U.A.B.), Medicine Department, Barcelona, Spain
| | - Jaime Kulisevsky
- European Huntington's Disease Network; Movement Disorders Unit, Dept of Neurology, Biomedical Research Institute Sant Pau IIB-Sant Pau, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; CIBERNED Center for Networked Biomedical Research on Neurodegenerative Diseases, Carlos III Institute, Madrid, Spain; Universitat Autonoma de Barcelona (U.A.B.), Medicine Department, Barcelona, Spain
| | | | - Irene Vaquer
- Hestia Duran i Reynals. Hospital Duran i Reynals, Hospitalet de Llobregat Barcelona, Spain
| | - Susana Subira
- Hestia Duran i Reynals. Hospital Duran i Reynals, Hospitalet de Llobregat Barcelona, Spain; Departament de Psicologia Clínica i de la Salut, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Matilde Calopa
- Movement Disorders Unit, Neurology Service, Hospital Universitari de Bellvitge, Barcelona, Spain
| | - Pilar Santacruz
- Movement Disorders Unit, Neurology Service, Hospital Clínic, Barcelona, Spain
| | - Esteban Muñoz
- Movement Disorders Unit, Neurology Service, Hospital Clínic, Barcelona, Spain; IDIBAPS Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain; Facultat de Medicina, University of Barcelona, Barcelona, Spain
| | - Celia Mareca
- Hospital Mare de Deu de la Mercè, Barcelona, Spain
| | - Jesus Ruiz-Idiago
- Department of Psychiatry and Forensic Medicine, Universitat Autònoma de Barcelona, Spain; Hospital Mare de Deu de la Mercè, Barcelona, Spain; FIDMAG Research Foundation, Barcelona, Spain
| | - Ruth de Diego-Balaguer
- Cognition and Brain Plasticity Unit Bellvitge Biomedical Research Institute - IDIBELL, 08097 L'Hospitalet de Llobregat, Barcelona, Spain; Department of Cognition, Development and Education Psychology, Universitat de Barcelona, Barcelona, Spain; Institute of Neurosciences, Universitat de Barcelona, Barcelona, Spain; ICREA Catalan Institution for Research and Advanced Studies, Barcelona, Spain
| | - Estela Camara
- Cognition and Brain Plasticity Unit Bellvitge Biomedical Research Institute - IDIBELL, 08097 L'Hospitalet de Llobregat, Barcelona, Spain; Department of Cognition, Development and Education Psychology, Universitat de Barcelona, Barcelona, Spain.
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Sampedro F, Camara E, Kulisevsky J. Editorial: Neuroimaging of Cognitive and Neuropsychiatric Symptoms in Movement Disorders. Front Neurol 2022; 13:843440. [PMID: 35173676 PMCID: PMC8842729 DOI: 10.3389/fneur.2022.843440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Accepted: 01/10/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- Frederic Sampedro
- Movement Disorders Unit, Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
- Biomedical Research Institute (IIB-Sant Pau), Barcelona, Spain
- Centro de Investigación en Red-Enfermedades Neurodegenerativas (CIBERNED), Barcelona, Spain
- *Correspondence: Frederic Sampedro
| | - Estela Camara
- Cognition and Brain Plasticity Unit, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Barcelona, Spain
- Cognition, Development and Educational Psychology, University of Barcelona, Barcelona, Spain
| | - Jaime Kulisevsky
- Movement Disorders Unit, Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
- Biomedical Research Institute (IIB-Sant Pau), Barcelona, Spain
- Centro de Investigación en Red-Enfermedades Neurodegenerativas (CIBERNED), Barcelona, Spain
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De Paepe AE, Ara A, Garcia-Gorro C, Martinez-Horta S, Perez-Perez J, Kulisevsky J, Rodriguez-Dechicha N, Vaquer I, Subira S, Calopa M, Muñoz E, Santacruz P, Ruiz-Idiago J, Mareca C, de Diego-Balaguer R, Camara E. Gray Matter Vulnerabilities Predict Longitudinal Development of Apathy in Huntington's Disease. Mov Disord 2021; 36:2162-2172. [PMID: 33998063 DOI: 10.1002/mds.28638] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 11/20/2020] [Revised: 04/15/2021] [Accepted: 04/16/2021] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Apathy, a common neuropsychiatric disturbance in Huntington's disease (HD), is subserved by a complex neurobiological network. However, no study has yet employed a whole-brain approach to examine underlying regional vulnerabilities that may precipitate apathy changes over time. OBJECTIVES To identify whole-brain gray matter volume (GMV) vulnerabilities that may predict longitudinal apathy development in HD. METHODS Forty-five HD individuals (31 female) were scanned and evaluated for apathy and other neuropsychiatric features using the short-Problem Behavior Assessment for a maximum total of six longitudinal visits (including baseline). In order to identify regions where changes in GMV may describe changes in apathy, we performed longitudinal voxel-based morphometry (VBM) on those 33 participants with a magnetic resonance imaging (MRI) scan on their second visit at 18 ± 6 months follow-up (78 MRI datasets). We next employed a generalized linear mixed-effects model (N = 45) to elucidate whether initial and specific GMV may predict apathy development over time. RESULTS Utilizing longitudinal VBM, we revealed a relationship between increases in apathy and specific GMV atrophy in the right middle cingulate cortex (MCC). Furthermore, vulnerability in the right MCC volume at baseline successfully predicted the severity and progression of apathy over time. CONCLUSIONS This study highlights that individual differences in apathy in HD may be explained by variability in atrophy and initial vulnerabilities in the right MCC, a region implicated in action-initiation. These findings thus serve to facilitate the prediction of an apathetic profile, permitting targeted, time-sensitive interventions in neurodegenerative disease with potential implications in otherwise healthy populations. © 2021 International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Audrey E De Paepe
- Cognition and Brain Plasticity Unit, Bellvitge Biomedical Research Institute - IDIBELL, Barcelona, Spain.,Department of Cognition, Development and Educational Psychology, Universitat de Barcelona, Barcelona, Spain
| | - Alberto Ara
- Cognition and Brain Plasticity Unit, Bellvitge Biomedical Research Institute - IDIBELL, Barcelona, Spain.,Department of Cognition, Development and Educational Psychology, Universitat de Barcelona, Barcelona, Spain.,Institute of Neurosciences, Universitat de Barcelona, Barcelona, Spain
| | - Clara Garcia-Gorro
- Cognition and Brain Plasticity Unit, Bellvitge Biomedical Research Institute - IDIBELL, Barcelona, Spain.,Department of Cognition, Development and Educational Psychology, Universitat de Barcelona, Barcelona, Spain
| | - Saül Martinez-Horta
- European Huntington's Disease Network, Ulm, Germany.,Movement Disorders Unit, Department of Neurology, Biomedical Research Institute Sant Pau (IIB-Sant Pau), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,CIBERNED (Center for Networked Biomedical Research on Neurodegenerative Diseases), Carlos III Institute, Madrid, Spain
| | - Jesus Perez-Perez
- European Huntington's Disease Network, Ulm, Germany.,Movement Disorders Unit, Department of Neurology, Biomedical Research Institute Sant Pau (IIB-Sant Pau), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,CIBERNED (Center for Networked Biomedical Research on Neurodegenerative Diseases), Carlos III Institute, Madrid, Spain
| | - Jaime Kulisevsky
- European Huntington's Disease Network, Ulm, Germany.,Movement Disorders Unit, Department of Neurology, Biomedical Research Institute Sant Pau (IIB-Sant Pau), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,CIBERNED (Center for Networked Biomedical Research on Neurodegenerative Diseases), Carlos III Institute, Madrid, Spain
| | | | - Irene Vaquer
- Hestia Duran i Reynals, Hospital Duran i Reynals, Hospitalet de Llobregat, Barcelona, Spain
| | - Susana Subira
- Hestia Duran i Reynals, Hospital Duran i Reynals, Hospitalet de Llobregat, Barcelona, Spain.,Departament de Psicologia Clínica i de la Salut, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Matilde Calopa
- Movement Disorders Unit, Neurology Service, Hospital Universitari de Bellvitge, Barcelona, Spain
| | - Esteban Muñoz
- European Huntington's Disease Network, Ulm, Germany.,Movement Disorders Unit, Neurology Service, Hospital Clínic, Barcelona, Spain.,IDIBAPS (Institut d'Investigacions Biomèdiques August Pi i Sunyer), Barcelona, Spain.,Facultat de Medicina, University of Barcelona, Barcelona, Spain
| | - Pilar Santacruz
- Movement Disorders Unit, Neurology Service, Hospital Clínic, Barcelona, Spain
| | - Jesus Ruiz-Idiago
- Department of Psychiatry and Forensic Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain.,Hospital Mare de Deu de la Mercè, Barcelona, Spain
| | - Celia Mareca
- Department of Psychiatry and Forensic Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Ruth de Diego-Balaguer
- Cognition and Brain Plasticity Unit, Bellvitge Biomedical Research Institute - IDIBELL, Barcelona, Spain.,Department of Cognition, Development and Educational Psychology, Universitat de Barcelona, Barcelona, Spain.,Institute of Neurosciences, Universitat de Barcelona, Barcelona, Spain.,European Huntington's Disease Network, Ulm, Germany.,ICREA (Catalan Institute for Research and Advanced Studies), Barcelona, Spain
| | - Estela Camara
- Cognition and Brain Plasticity Unit, Bellvitge Biomedical Research Institute - IDIBELL, Barcelona, Spain.,Department of Cognition, Development and Educational Psychology, Universitat de Barcelona, Barcelona, Spain.,European Huntington's Disease Network, Ulm, Germany
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Palomar-Garcia A, Camara E. SeSBAT: Single Subject Brain Analysis Toolbox. Application to Huntington's Disease as a Preliminary Study. Front Syst Neurosci 2020; 14:488652. [PMID: 33117135 PMCID: PMC7550747 DOI: 10.3389/fnsys.2020.488652] [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: 07/31/2019] [Accepted: 08/21/2020] [Indexed: 12/02/2022] Open
Abstract
Magnetic resonance imaging (MRI) biomarkers require complex processing routines that are time-consuming and labor-intensive for clinical users. The Single Subject Brain Analysis Toolbox (SeSBAT) is a fully automated MATLAB toolbox with a graphical user interface (GUI) that offers standardized and optimized protocols for the pre-processing and analysis of anatomical MRI data at the single-subject level. In this study, the two-fold strategy provided by SeSBAT is illustrated through its application on a cohort of 42 patients with Huntington’s disease (HD), in pre-manifest and early manifest stages, as a suitable model of neurodegenerative processes. On the one hand, hypothesis-driven analysis can be used to extract biomarkers of neurodegeneration in specific brain regions of interest (ROI-based analysis). On the other hand, an exploratory voxel-based morphometry (VBM) approach can detect volume changes due to neurodegeneration throughout the whole brain (whole-brain analysis). That illustration reveals the potential of SeSBAT in providing potential prognostic biomarkers in neurodegenerative processes in clinics, which could be critical to overcoming the limitations of current qualitative evaluation strategies, and thus improve the diagnosis and monitoring of neurodegenerative disorders. Furthermore, the importance of the availability of tools for characterization at the single-subject level has been emphasized, as there is high interindividual variability in the pattern of neurodegeneration. Thus, tools like SeSBAT could pave the way towards more effective and personalized medicine.
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Affiliation(s)
- Alicia Palomar-Garcia
- Cognition and Brain Plasticity Unit, IDIBELL (Institut d'Investigació Biomèdica de Bellvitge), Barcelona, Spain
| | - Estela Camara
- Department of Cognition, Development and Educational Psychology, University of Barcelona, Barcelona, Spain
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Sala-Padro J, Miró J, Rodriguez-Fornells A, Quintana M, Vidal N, Plans G, Santurino M, Falip M, Camara E. Hippocampal microstructural architecture and surgical outcome: Hippocampal diffusivity could predict seizure relapse. Seizure 2020; 76:84-88. [PMID: 32044692 DOI: 10.1016/j.seizure.2020.01.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 12/16/2019] [Accepted: 01/05/2020] [Indexed: 10/25/2022] Open
Abstract
PURPOSE Our aim was to study the microstructural architecture of the contralateral hippocampus to the affected side in patients with temporal lobe epilepsy with hippocampal sclerosis (TLE-HS) and its relation with surgical outcome. METHOD We included 33 consecutive patients evaluated in our epilepsy surgery program during a five-year period. They underwent a presurgical MRI with volumetric T1 and diffusion weighted sequences. 22 patients with TLE-HS (13 women, 12 right TLE-HS) were finally selected. Median follow-up after surgery was 6.25 years (4.5-8.83 years). We segmented the hippocampal subfields of the contralateral hippocampus using FreeSurfer and calculated the fractional anisotropy (FA) and the mean diffusivity (MD) of each subfield. We also scanned 18 healthy age-matched controls. RESULTS After surgery, 50 % of the patients (n = 11) remained seizure-free (SF) following surgery. Comparing non-SF to SF patients, the MD showed increased values of the CA1 (p = 0.035), the molecular layer (p = 0.010) and the dentate gyrus (p = 0.041) in the healthy hippocampus. Using a cut-off point for a survival analysis, we found that patients with lower values of MD of the molecular layer and the CA1 remained SF during long-term post-operative follow-up (p < 0.0001). CONCLUSIONS The contralateral hippocampal internal microstructure may have be implicated in post-surgery seizure freedom in patients with TLE-HS.
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Affiliation(s)
- Jacint Sala-Padro
- Epilepsy Unit, Hospital de Bellvitge, Spain; Cognition and Brain Plasticity Group, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, 08097, Spain
| | - Júlia Miró
- Epilepsy Unit, Hospital de Bellvitge, Spain; Cognition and Brain Plasticity Group, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, 08097, Spain
| | - Antoni Rodriguez-Fornells
- Cognition and Brain Plasticity Group, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, 08097, Spain; Department of Cognition, Development and Educational Science, Campus Bellvitge, University of Barcelona, L'Hospitalet de Llobregat, Barcelona, 08097, Spain; Catalan Institution for Research and Advanced Studies, ICREA, Barcelona, Spain
| | | | - Noemí Vidal
- Department of Pathology, Hospital de Bellvitge, Spain
| | | | | | | | - Estela Camara
- Cognition and Brain Plasticity Group, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, 08097, Spain; Department of Cognition, Development and Educational Science, Campus Bellvitge, University of Barcelona, L'Hospitalet de Llobregat, Barcelona, 08097, Spain.
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De Paepe AE, Sierpowska J, Garcia-Gorro C, Martinez-Horta S, Perez-Perez J, Kulisevsky J, Rodriguez-Dechicha N, Vaquer I, Subira S, Calopa M, Muñoz E, Santacruz P, Ruiz-Idiago J, Mareca C, de Diego-Balaguer R, Camara E. White matter cortico-striatal tracts predict apathy subtypes in Huntington's disease. Neuroimage Clin 2019; 24:101965. [PMID: 31401404 PMCID: PMC6700450 DOI: 10.1016/j.nicl.2019.101965] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 07/23/2019] [Accepted: 07/28/2019] [Indexed: 01/24/2023]
Abstract
BACKGROUND Apathy is the neuropsychiatric syndrome that correlates most highly with Huntington's disease progression, and, like early patterns of neurodegeneration, is associated with lesions to cortico-striatal connections. However, due to its multidimensional nature and elusive etiology, treatment options are limited. OBJECTIVES To disentangle underlying white matter microstructural correlates across the apathy spectrum in Huntington's disease. METHODS Forty-six Huntington's disease individuals (premanifest (N = 22) and manifest (N = 24)) and 35 healthy controls were scanned at 3-tesla and underwent apathy evaluation using the short-Problem Behavior Assessment and short-Lille Apathy Rating Scale, with the latter being characterized into three apathy domains, namely emotional, cognitive, and auto-activation deficit. Diffusion tensor imaging was used to study whether individual differences in specific cortico-striatal tracts predicted global apathy and its subdomains. RESULTS We elucidate that apathy profiles may develop along differential timelines, with the auto-activation deficit domain manifesting prior to motor onset. Furthermore, diffusion tensor imaging revealed that inter-individual variability in the disruption of discrete cortico-striatal tracts might explain the heterogeneous severity of apathy profiles. Specifically, higher levels of auto-activation deficit symptoms significantly correlated with increased mean diffusivity in the right uncinate fasciculus. Conversely, those with severe cognitive apathy demonstrated increased mean diffusivity in the right frontostriatal tract and left dorsolateral prefrontal cortex to caudate nucleus tract. CONCLUSIONS The current study provides evidence that white matter correlates associated with emotional, cognitive, and auto-activation subtypes may elucidate the heterogeneous nature of apathy in Huntington's disease, as such opening a door for individualized pharmacological management of apathy as a multidimensional syndrome in other neurodegenerative disorders.
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Affiliation(s)
- Audrey E De Paepe
- Department of Neuroscience, Pomona College, Claremont, CA, United States; Cognition and Brain Plasticity Unit, Bellvitge Biomedical Research Institute - IDIBELL, 08097 L'Hospitalet de Llobregat, Barcelona, Spain
| | - Joanna Sierpowska
- Cognition and Brain Plasticity Unit, Bellvitge Biomedical Research Institute - IDIBELL, 08097 L'Hospitalet de Llobregat, Barcelona, Spain; Department of Cognition, Development and Education Psychology, Universitat de Barcelona, Barcelona, Spain; Radboud University, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands; Radboud University Medical Center, Donders Institute for Brain Cognition and Behaviour, Department of Medical Psychology, Nijmegen, The Netherlands
| | - Clara Garcia-Gorro
- Cognition and Brain Plasticity Unit, Bellvitge Biomedical Research Institute - IDIBELL, 08097 L'Hospitalet de Llobregat, Barcelona, Spain; Department of Cognition, Development and Education Psychology, Universitat de Barcelona, Barcelona, Spain
| | - Saül Martinez-Horta
- European Huntington's Disease Network, Germany; Movement Disorders Unit, Department of Neurology, Biomedical Research Institute Sant Pau (IIB-Sant Pau), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Jesus Perez-Perez
- European Huntington's Disease Network, Germany; Movement Disorders Unit, Department of Neurology, Biomedical Research Institute Sant Pau (IIB-Sant Pau), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Jaime Kulisevsky
- European Huntington's Disease Network, Germany; Movement Disorders Unit, Department of Neurology, Biomedical Research Institute Sant Pau (IIB-Sant Pau), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; CIBERNED (Center for Networked Biomedical Research on Neurodegenerative Diseases), Carlos III Institute, Madrid, Spain
| | | | - Irene Vaquer
- Hestia Duran i Reynals. Hospital Duran i Reynals, Hospitalet de Llobregat, Barcelona, Spain
| | - Susana Subira
- Hestia Duran i Reynals. Hospital Duran i Reynals, Hospitalet de Llobregat, Barcelona, Spain; Department of Clinical and Health Psychology, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Matilde Calopa
- Movement Disorders Unit, Neurology Service, Hospital Universitari de Bellvitge, Barcelona, Spain
| | - Esteban Muñoz
- Movement Disorders Unit, Neurology Service, Hospital Clínic, Barcelona, Spain; IDIBAPS (Institut d'Investigacions Biomèdiques August Pi i Sunyer), Barcelona, Spain; Facultat de Medicina, University of Barcelona, Barcelona, Spain
| | - Pilar Santacruz
- Movement Disorders Unit, Neurology Service, Hospital Clínic, Barcelona, Spain
| | - Jesus Ruiz-Idiago
- Department of Psychiatry and Forensic Medicine, Universitat Autònoma de Barcelona, Spain; Hospital Mare de Deu de la Mercè, Barcelona, Spain
| | - Celia Mareca
- Hospital Mare de Deu de la Mercè, Barcelona, Spain
| | - Ruth de Diego-Balaguer
- Cognition and Brain Plasticity Unit, Bellvitge Biomedical Research Institute - IDIBELL, 08097 L'Hospitalet de Llobregat, Barcelona, Spain; Department of Cognition, Development and Education Psychology, Universitat de Barcelona, Barcelona, Spain; Institute of Neurosciences, Universitat de Barcelona, Barcelona, Spain; ICREA (Catalan Institute for Research and Advanced Studies), Barcelona, Spain
| | - Estela Camara
- Cognition and Brain Plasticity Unit, Bellvitge Biomedical Research Institute - IDIBELL, 08097 L'Hospitalet de Llobregat, Barcelona, Spain.
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Garcia-Gorro C, Llera A, Martinez-Horta S, Perez-Perez J, Kulisevsky J, Rodriguez-Dechicha N, Vaquer I, Subira S, Calopa M, Muñoz E, Santacruz P, Ruiz-Idiago J, Mareca C, Beckmann CF, de Diego-Balaguer R, Camara E. Specific patterns of brain alterations underlie distinct clinical profiles in Huntington's disease. Neuroimage Clin 2019; 23:101900. [PMID: 31255947 PMCID: PMC6606833 DOI: 10.1016/j.nicl.2019.101900] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 06/11/2019] [Accepted: 06/13/2019] [Indexed: 12/16/2022]
Abstract
Huntington's disease (HD) is a genetic neurodegenerative disease which involves a triad of motor, cognitive and psychiatric disturbances. However, there is great variability in the prominence of each type of symptom across individuals. The neurobiological basis of such variability remains poorly understood but would be crucial for better tailored treatments. Multivariate multimodal neuroimaging approaches have been successful in disentangling these profiles in other disorders. Thus we applied for the first time such approach to HD. We studied the relationship between HD symptom domains and multimodal measures sensitive to grey and white matter structural alterations. Forty-three HD gene carriers (23 manifest and 20 premanifest individuals) were scanned and underwent behavioural assessments evaluating motor, cognitive and psychiatric domains. We conducted a multimodal analysis integrating different structural neuroimaging modalities measuring grey matter volume, cortical thickness and white matter diffusion indices - fractional anisotropy and radial diffusivity. All neuroimaging measures were entered into a linked independent component analysis in order to obtain multimodal components reflecting common inter-subject variation across imaging modalities. The relationship between multimodal neuroimaging independent components and behavioural measures was analysed using multiple linear regression. We found that cognitive and motor symptoms shared a common neurobiological basis, whereas the psychiatric domain presented a differentiated neural signature. Behavioural measures of different symptom domains correlated with different neuroimaging components, both the brain regions involved and the neuroimaging modalities most prominently associated with each type of symptom showing differences. More severe cognitive and motor signs together were associated with a multimodal component consisting in a pattern of reduced grey matter, cortical thickness and white matter integrity in cognitive and motor related networks. In contrast, depressive symptoms were associated with a component mainly characterised by reduced cortical thickness pattern in limbic and paralimbic regions. In conclusion, using a multivariate multimodal approach we were able to disentangle the neurobiological substrates of two distinct symptom profiles in HD: one characterised by cognitive and motor features dissociated from a psychiatric profile. These results open a new view on a disease classically considered as a uniform entity and initiates a new avenue for further research considering these qualitative individual differences.
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Affiliation(s)
- Clara Garcia-Gorro
- Cognition and Brain Plasticity Unit, L'Hospitalet de Llobregat (Barcelona), IDIBELL (Institut d'Investigació Biomèdica de Bellvitge), Spain
- Department of Cognition, Development and Educational Psychology, University of Barcelona, Barcelona, Spain
| | - Alberto Llera
- Donders Institute for Brain, Cognition and Behaviour, Centre for Cognitive Neuroimaging, Radboud University, Nijmegen, the Netherlands
| | - Saul Martinez-Horta
- Movement Disorders Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau (IIB-Sant Pau), Barcelona, Spain
- CIBERNED (Center for Networked Biomedical Research on Neurodegenerative Diseases), Carlos III Institute, Madrid, Spain
| | - Jesus Perez-Perez
- Movement Disorders Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau (IIB-Sant Pau), Barcelona, Spain
- CIBERNED (Center for Networked Biomedical Research on Neurodegenerative Diseases), Carlos III Institute, Madrid, Spain
| | - Jaime Kulisevsky
- Movement Disorders Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau (IIB-Sant Pau), Barcelona, Spain
- CIBERNED (Center for Networked Biomedical Research on Neurodegenerative Diseases), Carlos III Institute, Madrid, Spain
- Universidad Autónoma de Barcelona, Barcelona, Spain
| | | | - Irene Vaquer
- Hestia Duran i Reynals, Hospital Duran i Reynals, Hospitalet de Llobregat (Barcelona), Spain
| | - Susana Subira
- Hestia Duran i Reynals, Hospital Duran i Reynals, Hospitalet de Llobregat (Barcelona), Spain
- Department of Clinical and Health Psychology, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Matilde Calopa
- Movement Disorders Unit, Neurology Service, Hospital Universitari de Bellvitge, Barcelona, Spain
| | - Esteban Muñoz
- Movement Disorders Unit, Neurology Service, Hospital Clínic, Barcelona, Spain
- IDIBAPS (Institut d'Investigacions Biomèdiques August Pi i Sunyer), Barcelona, Spain
- Facultat de Medicina, University of Barcelona, Barcelona, Spain
| | - Pilar Santacruz
- Movement Disorders Unit, Neurology Service, Hospital Clínic, Barcelona, Spain
| | - Jesus Ruiz-Idiago
- Hospital Mare de Deu de la Mercè, Barcelona, Spain
- Department of Psychiatry and Forensic Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Celia Mareca
- Hospital Mare de Deu de la Mercè, Barcelona, Spain
| | - Christian F. Beckmann
- Donders Institute for Brain, Cognition and Behaviour, Centre for Cognitive Neuroimaging, Radboud University, Nijmegen, the Netherlands
- Donders Institute for Brain, Cognition and Behaviour, Department of Cognitive Neuroscience, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Ruth de Diego-Balaguer
- Cognition and Brain Plasticity Unit, L'Hospitalet de Llobregat (Barcelona), IDIBELL (Institut d'Investigació Biomèdica de Bellvitge), Spain
- Department of Cognition, Development and Educational Psychology, University of Barcelona, Barcelona, Spain
- The Institute of Neurosciences, University of Barcelona, Barcelona, Spain
- ICREA (Catalan Institute for Research and Advanced Studies), Barcelona, Spain
| | - Estela Camara
- Cognition and Brain Plasticity Unit, L'Hospitalet de Llobregat (Barcelona), IDIBELL (Institut d'Investigació Biomèdica de Bellvitge), Spain
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Garcia-Gorro C, Garau-Rolandi M, Escrichs A, Rodriguez-Dechicha N, Vaquer I, Subira S, Calopa M, Martinez-Horta S, Perez-Perez J, Kulisevsky J, Muñoz E, Santacruz P, Ruiz-Idiago J, Mareca C, de Diego-Balaguer R, Camara E. An active cognitive lifestyle as a potential neuroprotective factor in Huntington's disease. Neuropsychologia 2018; 122:116-124. [PMID: 30563619 DOI: 10.1016/j.neuropsychologia.2018.10.017] [Citation(s) in RCA: 14] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 10/16/2018] [Accepted: 10/20/2018] [Indexed: 01/21/2023]
Abstract
A cognitive stimulating lifestyle has been observed to confer cognitive benefits in multiple neurodegenerative diseases. However, the underlying neurobiological basis of this phenomenon remains unclear. Huntington's disease can provide a suitable model to study the effects and neural mechanisms of cognitive engagement in neurodegeneration. In this study, we investigate the effect of lifestyle factors such as education, occupation and engagement in cognitive activities in Huntington's disease gene carriers on cognitive performance and age of onset as well as the underlying neural changes sustaining these effects, measured by magnetic resonance imaging. Specifically, we analyzed both gray matter volume and the strength of connectivity of the executive control resting-state network. High levels of cognitive engagement were significantly associated with more preserved executive functions, a delay in the appearance of symptoms, reduced volume loss of the left precuneus and the bilateral caudate and a modulation of connectivity strength of anterior cingulate cortex and left angular gyrus with the executive control network. These findings suggest that a cognitively stimulating lifestyle may promote brain maintenance by modulating the executive control resting-state network and conferring protection against neurodegeneration, which results in a delayed onset of symptoms and improved performance in executive functions.
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Affiliation(s)
- Clara Garcia-Gorro
- Cognition and Brain Plasticity Unit, Neuroscience Program, IDIBELL (Institut d'Investigació Biomèdica de Bellvitge), L'Hospitalet de Llobregat, Barcelona, Spain; Department of Cognition, Development and Educational Psychology, University of Barcelona, Barcelona, Spain
| | - Maria Garau-Rolandi
- Hestia Duran i Reynals. Hospital Duran i Reynals, Hospitalet de Llobregat, Barcelona, Spain
| | - Anira Escrichs
- Cognition and Brain Plasticity Unit, Neuroscience Program, IDIBELL (Institut d'Investigació Biomèdica de Bellvitge), L'Hospitalet de Llobregat, Barcelona, Spain
| | | | - Irene Vaquer
- Hestia Duran i Reynals. Hospital Duran i Reynals, Hospitalet de Llobregat, Barcelona, Spain
| | - Susana Subira
- Hestia Duran i Reynals. Hospital Duran i Reynals, Hospitalet de Llobregat, Barcelona, Spain; Department of Clinical and Health Psychology, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Matilde Calopa
- Movement Disorders Unit, Neurology Service, Hospital Universitari de Bellvitge, Barcelona, Spain
| | - Saul Martinez-Horta
- Movement Disorders Unit, Department of Neurology, Biomedical Research Institute Sant Pau (IIB-Sant Pau), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; CIBERNED (Center for Networked Biomedical Research on Neurodegenerative Diseases), Carlos III Institute, Madrid, Spain
| | - Jesus Perez-Perez
- Movement Disorders Unit, Department of Neurology, Biomedical Research Institute Sant Pau (IIB-Sant Pau), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; CIBERNED (Center for Networked Biomedical Research on Neurodegenerative Diseases), Carlos III Institute, Madrid, Spain
| | - Jaime Kulisevsky
- Movement Disorders Unit, Department of Neurology, Biomedical Research Institute Sant Pau (IIB-Sant Pau), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; CIBERNED (Center for Networked Biomedical Research on Neurodegenerative Diseases), Carlos III Institute, Madrid, Spain; Universidad Autónoma de Barcelona, Barcelona, Spain
| | - Esteban Muñoz
- Movement Disorders Unit, Neurology Service, Hospital Clínic, Barcelona, Spain; IDIBAPS (Institut d'Investigacions Biomèdiques August Pi i Sunyer), Barcelona, Spain; Facultat de Medicina, University of Barcelona, Barcelona, Spain
| | - Pilar Santacruz
- Movement Disorders Unit, Neurology Service, Hospital Clínic, Barcelona, Spain
| | | | - Celia Mareca
- Hospital Mare de Deu de la Mercè, Barcelona, Spain
| | - Ruth de Diego-Balaguer
- Cognition and Brain Plasticity Unit, Neuroscience Program, IDIBELL (Institut d'Investigació Biomèdica de Bellvitge), L'Hospitalet de Llobregat, Barcelona, Spain; Department of Cognition, Development and Educational Psychology, University of Barcelona, Barcelona, Spain; The Institute of Neurosciences, University of Barcelona, Barcelona, Spain; ICREA (Catalan Institute for Research and Advanced Studies), Barcelona, Spain
| | - Estela Camara
- Cognition and Brain Plasticity Unit, Neuroscience Program, IDIBELL (Institut d'Investigació Biomèdica de Bellvitge), L'Hospitalet de Llobregat, Barcelona, Spain.
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10
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Garcia‐Gorro C, de Diego‐Balaguer R, Martínez‐Horta S, Pérez‐Pérez J, Kulisevsky J, Rodríguez‐Dechicha N, Vaquer I, Subira S, Calopa M, Muñoz E, Santacruz P, Ruiz‐Idiago J, Mareca C, Caballol N, Camara E. Reduced striato-cortical and inhibitory transcallosal connectivity in the motor circuit of Huntington's disease patients. Hum Brain Mapp 2018; 39:54-71. [PMID: 28990240 PMCID: PMC6866479 DOI: 10.1002/hbm.23813] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [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: 03/21/2017] [Revised: 08/25/2017] [Accepted: 09/05/2017] [Indexed: 12/13/2022] Open
Abstract
Huntington's disease (HD) is a neurodegenerative disorder which is primarily associated with striatal degeneration. However, the alterations in connectivity of this structure in HD have been underinvestigated. In this study, we analyzed the functional and structural connectivity of the left putamen, while participants performed a finger-tapping task. Using fMRI and DW-MRI, 30 HD gene expansion carriers (HDGEC) and 29 healthy participants were scanned. Psychophysiological interaction analysis and DTI-based tractography were employed to examine functional and structural connectivity, respectively. Manifest HDGEC exhibited a reduced functional connectivity of the left putamen with the left and the right primary sensorimotor areas (SM1). Based on this result, the inhibitory functional connectivity between the left SM1 and the right SM1 was explored, appearing to be also decreased. In addition, the tract connecting these areas (motor corpus callosum), and the tract connecting the left putamen with the left SM1 appeared disrupted in HDGEC compared to controls. Significant correlations were found between measures of functional and structural connectivity of the motor corpus callosum, showing a coupling of both types of alterations in this tract. The observed reduction of functional and structural connectivity was associated with worse motor scores, which highlights the clinical relevance of these results. Hum Brain Mapp 39:54-71, 2018. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Clara Garcia‐Gorro
- Cognition and Brain Plasticity UnitIDIBELL (Institut d'Investigació Biomèdica de Bellvitge), L'Hospitalet de LlobregatBarcelonaSpain
- Department of Cognition, Development and Educational PsychologyUniversity of BarcelonaBarcelonaSpain
| | - Ruth de Diego‐Balaguer
- Cognition and Brain Plasticity UnitIDIBELL (Institut d'Investigació Biomèdica de Bellvitge), L'Hospitalet de LlobregatBarcelonaSpain
- Department of Cognition, Development and Educational PsychologyUniversity of BarcelonaBarcelonaSpain
- The Institute of Neurosciences of the University of BarcelonaBarcelonaSpain
- ICREA (Catalan Institute for Research and Advanced Studies)BarcelonaSpain
| | - Saul Martínez‐Horta
- Movement Disorders Unit, Department of NeurologyBiomedical Research Institute Sant Pau (IIB‐Sant Pau), Hospital de la Santa Creu i Sant PauBarcelonaSpain
- CIBERNED (Center for Networked Biomedical Research on Neurodegenerative Diseases), Carlos III InstituteMadridSpain
| | - Jesus Pérez‐Pérez
- Movement Disorders Unit, Department of NeurologyBiomedical Research Institute Sant Pau (IIB‐Sant Pau), Hospital de la Santa Creu i Sant PauBarcelonaSpain
- CIBERNED (Center for Networked Biomedical Research on Neurodegenerative Diseases), Carlos III InstituteMadridSpain
| | - Jaime Kulisevsky
- Movement Disorders Unit, Department of NeurologyBiomedical Research Institute Sant Pau (IIB‐Sant Pau), Hospital de la Santa Creu i Sant PauBarcelonaSpain
- CIBERNED (Center for Networked Biomedical Research on Neurodegenerative Diseases), Carlos III InstituteMadridSpain
- Universidad Autónoma de BarcelonaBarcelonaSpain
| | | | - Irene Vaquer
- Hestia Duran i Reynals, Hospital Duran i Reynals, Hospitalet de LlobregatBarcelonaSpain
| | - Susana Subira
- Hestia Duran i Reynals, Hospital Duran i Reynals, Hospitalet de LlobregatBarcelonaSpain
- Department of Clinical and Health PsychologyUniversitat Autònoma de BarcelonaBarcelonaSpain
| | - Matilde Calopa
- Movement Disorders Unit, Neurology Service, Hospital Universitari de Bellvitge, L'Hospitalet de LlobregatBarcelonaSpain
| | - Esteban Muñoz
- Movement Disorders Unit, Neurology Service, Hospital ClínicBarcelonaSpain
- IDIBAPS (Institut d'Investigacions Biomèdiques August Pi i Sunyer)BarcelonaSpain
- Facultat de medicina, University of BarcelonaBarcelonaSpain
| | - Pilar Santacruz
- Movement Disorders Unit, Neurology Service, Hospital ClínicBarcelonaSpain
| | | | | | - Nuria Caballol
- Hospital de Sant Joan Despí Moisès Broggi, Sant Joan DespíBarcelonaSpain
| | - Estela Camara
- Cognition and Brain Plasticity UnitIDIBELL (Institut d'Investigació Biomèdica de Bellvitge), L'Hospitalet de LlobregatBarcelonaSpain
- Department of Cognition, Development and Educational PsychologyUniversity of BarcelonaBarcelonaSpain
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11
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Hinzen W, Rosselló J, Morey C, Camara E, Garcia-Gorro C, Salvador R, de Diego-Balaguer R. A systematic linguistic profile of spontaneous narrative speech in pre-symptomatic and early stage Huntington's disease. Cortex 2017; 100:71-83. [PMID: 28859906 PMCID: PMC5845634 DOI: 10.1016/j.cortex.2017.07.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [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: 01/20/2017] [Revised: 06/27/2017] [Accepted: 07/21/2017] [Indexed: 01/02/2023]
Abstract
Cognitive decline accompanying the clinically more salient motor symptoms of Huntington's disease (HD) has been widely noted and can precede motor symptoms onset. Less clear is how such decline bears on language functions in everyday life, though a small number of experimental studies have revealed difficulties with the application of rule-based aspects of language in early stages of the disease. Here we aimed to determine whether there is a systematic linguistic profile that characterizes spontaneous narrative speech in both pre-manifest and/or early manifest HD, and how it is related to striatal degeneration and neuropsychological profiles. Twenty-eight early-stage patients (19 manifest and 9 gene-carriers in the pre-manifest stage), matched with 28 controls, participated in a story-telling task. Speech was blindly scored by independent raters according to fine-grained linguistic variables distributed over 5 domains for which composite scores were computed (Quantitative, Fluency, Reference, Connectivity, and Concordance). Voxel-based morphometry (VBM) was used to link specific brain degeneration patterns to loci of linguistic decline. In all of these domains, significant differences were observed between groups. Deficits in Reference and Connectivity were seen in the pre-manifest stage, where no other neuropsychological impairment was detected. Among HD patients, there was a significant positive correlation only between the values in the Quantitative domain and gray matter volume bilaterally in the putamen and pallidum. These results fill the gap of qualitative data of spontaneous narrative speech in HD and reveal that HD is characterized by systematic linguistic impairments leading to dysfluencies and disorganization in core domains of grammatical organization. This includes the referential use of noun phrases and the embedding of clauses, which mediate crucial dimensions of meaning in language in its normal social use. Moreover, such impairment is seen prior to motor symptoms onset and when standardized neuropsychological test profiles are otherwise normal.
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Affiliation(s)
- Wolfram Hinzen
- ICREA (Catalan Institution for Research and Advanced Studies), Barcelona, Spain; Department of Translation and Language Sciences, Universitat Pompeu Fabra, Barcelona, Spain; FIDMAG Germanes Hospitalaries Research Foundation, Barcelona, Spain
| | - Joana Rosselló
- Department of Catalan Philology and General Linguistics, Universitat de Barcelona, Barcelona, Spain
| | - Cati Morey
- Department of Catalan Philology and General Linguistics, Universitat de Barcelona, Barcelona, Spain
| | - Estela Camara
- Cognition and Brain Plasticity Unit, IDIBELL, L'Hospitalet de Llobregat, Spain; Department of Cognition, Development and Educational Psychology, Universitat de Barcelona, Barcelona, Spain; Institute of Neurosciences, Universitat de Barcelona, Barcelona, Spain
| | - Clara Garcia-Gorro
- Cognition and Brain Plasticity Unit, IDIBELL, L'Hospitalet de Llobregat, Spain; Department of Cognition, Development and Educational Psychology, Universitat de Barcelona, Barcelona, Spain
| | - Raymond Salvador
- FIDMAG Germanes Hospitalaries Research Foundation, Barcelona, Spain
| | - Ruth de Diego-Balaguer
- ICREA (Catalan Institution for Research and Advanced Studies), Barcelona, Spain; Cognition and Brain Plasticity Unit, IDIBELL, L'Hospitalet de Llobregat, Spain; Department of Cognition, Development and Educational Psychology, Universitat de Barcelona, Barcelona, Spain; Institute of Neurosciences, Universitat de Barcelona, Barcelona, Spain.
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12
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Garcia-Pallero MA, Torres CV, Manzanares-Soler R, Camara E, Sola RG. [The role of diffusion tensor imaging in the pre-surgical study of temporal lobe epilepsy]. Rev Neurol 2016; 63:537-542. [PMID: 27897304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
INTRODUCTION Diffusion tensor imaging (DTI) is a non-invasive technique that can be used to assess the integrity of the white matter in the brain. AIMS To investigate the usefulness of DTI in patients with temporal lobe epilepsy (TLE) and to observe its relationship with lateralisation of the epileptogenic focus in these patients. PATIENTS AND METHODS We analysed 11 patients diagnosed with TLE in accordance with the pre-surgical protocol of our epilepsy unit, and who were seizure-free two years after performing a temporal lobectomy plus amygdalohippocampectomy (Spencer technique). As part of their pre-operative study, a 1.5 T magnetic resonance brain scan with diffusion tensor imaging was performed. A voxel-based analysis was then employed to study the differences in connectivity between the hemisphere that underwent surgery and the contralateral hemisphere. RESULTS Compared with the contralateral hemisphere, a statistically significant reduction in fractional anisotropy (p < 0.05) was observed in the corpus callosum, the cingulate, the superior longitudinal fasciculus, the anterior thalamic radiations, the internal capsule, the ventral lateral and pulvinar nuclei of the thalamus, the inferior frontooccipital fasciculus, the uncinate fasciculus, the inferior longitudinal fasciculus and the parahippocampal gyrus, all ipsilateral to the epileptogenic focus. CONCLUSIONS The characterisation of the abnormalities in the connectivity of the cerebral white matter, by means of DTI in patients with TLE, can be a valuable aid for the lateralisation of the epileptogenic focus in the pre-surgical evaluation of these patients. Further studies with a higher number of patients would be needed to confirm these results.
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Affiliation(s)
| | - C V Torres
- Hospital Universitario de la Princesa, 28006 Madrid, Espana
| | | | - E Camara
- Institut d'Investigacio Biomedica de Bellvitge-IDIBELL, Hospital de Bellvitge , Hospitalet de Ll., Espana
| | - R G Sola
- Hospital Universitario de la Princesa, 28006 Madrid, Espana
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Hinzen W, Morey C, Rossello J, Salvador R, Garcia-Gorro C, Camara E, Diego-Balaguer RD. F13 Deviant language patterns in huntington’s spontaneous speech. J Neurol Neurosurg Psychiatry 2016. [DOI: 10.1136/jnnp-2016-314597.148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Marco-Garcia S, Garcia-Gorro C, Orpella-Garcia J, Rodriguez-Dechicha N, Martinez-Horta S, Vaquer I, Calopa M, Perez J, Muñoz E, Santacruz P, Ruiz JM, Mareca C, Caballol N, Kulisevsky J, Subira S, Diego-Balaguer RD, Camara E. D24 Intact emotional impulsivity in huntington’s disease despite altered structural connectivity in the uncinate fasciculus. J Neurol Psychiatry 2016. [DOI: 10.1136/jnnp-2016-314597.123] [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: 11/03/2022]
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Garcia-Gorro C, Garau-Rolandi M, Escrichs A, Rodriguez-Dechicha N, Martinez-Horta S, Vaquer I, Calopa M, Perez J, Muñoz E, Santacruz P, Ruiz JM, Mareca C, Caballol N, Kulisevsky J, Subira S, Diego-Balaguer RD, Camara E. D23 The effect of cognitive reserve on age of onset and executive functions in huntington’s disease and its neurobiological bases. J Neurol Psychiatry 2016. [DOI: 10.1136/jnnp-2016-314597.122] [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: 11/03/2022]
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Rodriguez-Dechicha N, Vaquer I, Camara E, Garcia-Gorro C, Calopa M, Garau-Rolandi M, Garcia A, Martinez S, Perez J, Kulisevsky J, Munoz E, Santa-Cruz P, Ruiz J, Mareca C, Caballol N, Subira S, de Diego-Balaguer R. H03 Awareness Of Dysexecutive Function In Huntington Disease. Journal of Neurology, Neurosurgery & Psychiatry 2014. [DOI: 10.1136/jnnp-2014-309032.148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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17
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Garcia-Gorro C, Vila A, Rodriguez-Dechicha N, Martinez-Horta S, Vaquer I, Calopa M, Perez-Perez J, Munoz E, Santacruz P, Ruiz J, Mareca C, Caballol N, Kulisevsky J, Subira S, Camara E, de Diego-Balaguer R. E26 Abnormal Functional Connectivity in Huntington's Disease During a Sequential Motor Task. Journal of Neurology, Neurosurgery & Psychiatry 2014. [DOI: 10.1136/jnnp-2014-309032.129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Abstract
Pramipexole is widely prescribed to treat Parkinson's disease. It has been found to cause impulse control disorders such as pathological gambling. To examine how pramipexole modulates the network of reward anticipation, we carried out a pharmacological functional magnetic resonance imaging study with a double-blind, within-subject design. During the anticipation of monetary rewards, pramipexole increased the activity of the nucleus accumbens (NAcc), enhanced the interaction between the NAcc and the anterior insula, but weakened the interaction between the NAcc and the prefrontal cortex. These results suggest that pramipexole may exaggerate incentive and affective responses to possible rewards, but reduce the top-down control of impulses, leading to an increase in impulsive behaviors. This imbalance between the prefrontal-striatum connectivity and the insula-striatum connectivity may represent the neural mechanism of pathological gambling caused by pramipexole.
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Affiliation(s)
- Zheng Ye
- Department of Psychology, Peking University, Beijing, China
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19
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Rojo N, Amengual J, Juncadella M, Rubio F, Camara E, Marco-Pallares J, Schneider S, Veciana M, Montero J, Mohammadi B, Altenmüller E, Grau C, Münte TF, Rodriguez-Fornells A. Music-supported therapy induces plasticity in the sensorimotor cortex in chronic stroke: a single-case study using multimodal imaging (fMRI-TMS). Brain Inj 2011; 25:787-93. [PMID: 21561296 DOI: 10.3109/02699052.2011.576305] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
PRIMARY OBJECTIVE Music-Supported Therapy (MST) has been developed recently in order to improve the use of the affected upper extremity after stroke. This study investigated the neuroplastic mechanisms underlying effectiveness in a patient with chronic stroke. METHODS MST uses musical instruments, a midi piano and an electronic drum set emitting piano sounds, to retrain fine and gross movements of the paretic upper extremity. Data are presented from a patient with a chronic stroke (20 months post-stroke) with residual right-sided hemiparesis who took part in 20 MST sessions over the course of 4 weeks. RESULTS Post-therapy, a marked improvement of movement quality, assessed by 3D movement analysis, was observed. Moreover, functional magnetic resonance imaging (fMRI) of a sequential hand movement revealed distinct therapy-related changes in the form of a reduction of excess contralateral and ipsilateral activations. This was accompanied by changes in cortical excitability evidenced by transcranial magnetic stimulation (TMS). Functional MRI in a music listening task suggests that one of the effects of MST is the task-dependent coupling of auditory and motor cortical areas. CONCLUSIONS The MST appears to be a useful neurorehabilitation tool in patients with chronic stroke and leads to neural reorganization in the sensorimotor cortex.
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Affiliation(s)
- Nuria Rojo
- Department of Psicologia Bàsica, Faculty of Psychology, University of Barcelona, Passeig de la Vall d’Hebron 171, Barcelona, Spain.
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Lopez-Barroso D, de Diego-Balaguer R, Cunillera T, Camara E, Münte TF, Rodriguez-Fornells A. Language learning under working memory constraints correlates with microstructural differences in the ventral language pathway. ACTA ACUST UNITED AC 2011; 21:2742-50. [PMID: 21527790 DOI: 10.1093/cercor/bhr064] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
The present study combined behavioral measures and diffusion tensor imaging to investigate the neuroanatomical basis of language learning in relation to phonological working memory (WM). Participants were exposed to simplified artificial languages under WM constraints. The results underscore the role of the rehearsal subcomponent of WM in successful speech segmentation and rule learning. Moreover, when rehearsal was blocked task performance was correlated to the white matter microstructure of the left ventral pathway connecting frontal and temporal language-related cortical areas through the extreme/external capsule. This ventral pathway may therefore play an important additional role in language learning when the main dorsal pathway-dependent rehearsal mechanisms are not available.
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Affiliation(s)
- Diana Lopez-Barroso
- Institut d'Investigació Biomèdica de Bellvitge, L'Hospitalet de Llobregat, 08097 Barcelona, Spain
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Camara E, Kramer UM, Cunillera T, Marco-Pallares J, Cucurell D, Nager W, Mestres-Misse A, Bauer P, Schule R, Schols L, Tempelmann C, Rodriguez-Fornells A, Munte TF. The Effects of COMT (Val108/158Met) and DRD4 (SNP -521) Dopamine Genotypes on Brain Activations Related to Valence and Magnitude of Rewards. Cereb Cortex 2009; 20:1985-96. [DOI: 10.1093/cercor/bhp263] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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Krämer UM, Rojo N, Schüle R, Cunillera T, Schöls L, Marco-Pallarés J, Cucurell D, Camara E, Rodriguez-Fornells A, Münte TF. ADHD candidate gene (DRD4 exon III) affects inhibitory control in a healthy sample. BMC Neurosci 2009; 10:150. [PMID: 20021692 PMCID: PMC2803796 DOI: 10.1186/1471-2202-10-150] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2009] [Accepted: 12/20/2009] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Dopamine is believed to be a key neurotransmitter in the development of attention-deficit/hyperactivity disorder (ADHD). Several recent studies point to an association of the dopamine D4 receptor (DRD4) gene and this condition. More specifically, the 7 repeat variant of a variable number of tandem repeats (VNTR) polymorphism in exon III of this gene is suggested to bear a higher risk for ADHD. In the present study, we investigated the role of this polymorphism in the modulation of neurophysiological correlates of response inhibition (Go/Nogo task) in a healthy, high-functioning sample. RESULTS Homozygous 7 repeat carriers showed a tendency for more accurate behavior in the Go/Nogo task compared to homozygous 4 repeat carriers. Moreover, 7 repeat carriers presented an increased nogo-related theta band response together with a reduced go-related beta decrease. CONCLUSIONS These data point to improved cognitive functions and prefrontal control in the 7 repeat carriers, probably due to the D4 receptor's modulatory role in prefrontal areas. The results are discussed with respect to previous behavioral data on this polymorphism and animal studies on the impact of the D4 receptor on cognitive functions.
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Affiliation(s)
- Ulrike M Krämer
- Dept, of Neuropsychology, Otto-von-Guericke-University, Magdeburg, Germany.
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Camara E, Rodriguez-Fornells A, Ye Z, Münte TF. Reward networks in the brain as captured by connectivity measures. Front Neurosci 2009; 3:350-62. [PMID: 20198152 PMCID: PMC2796919 DOI: 10.3389/neuro.01.034.2009] [Citation(s) in RCA: 84] [Impact Index Per Article: 5.6] [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: 07/23/2009] [Accepted: 09/05/2009] [Indexed: 11/20/2022] Open
Abstract
An assortment of human behaviors is thought to be driven by rewards including reinforcement learning, novelty processing, learning, decision making, economic choice, incentive motivation, and addiction. In each case the ventral tegmental area/ventral striatum (nucleus accumbens) (VTA–VS) system has been implicated as a key structure by functional imaging studies, mostly on the basis of standard, univariate analyses. Here we propose that standard functional magnetic resonance imaging analysis needs to be complemented by methods that take into account the differential connectivity of the VTA–VS system in the different behavioral contexts in order to describe reward based processes more appropriately. We first consider the wider network for reward processing as it emerged from animal experimentation. Subsequently, an example for a method to assess functional connectivity is given. Finally, we illustrate the usefulness of such analyses by examples regarding reward valuation, reward expectation and the role of reward in addiction.
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Affiliation(s)
- Estela Camara
- Departament de Ciencies Fisiològiques, University of Barcelona Barcelona, Spain
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Abstract
Evidence from infant studies indicates that language learning can be facilitated by multimodal cues. We extended this observation to adult language learning by studying the effects of simultaneous visual cues (nonassociated object images) on speech segmentation performance. Our results indicate that segmentation of new words from a continuous speech stream is facilitated by simultaneous visual input that it is presented at or near syllables that exhibit the low transitional probability indicative of word boundaries. This indicates that temporal audio-visual contiguity helps in directing attention to word boundaries at the earliest stages of language learning. Off-boundary or arrhythmic picture sequences did not affect segmentation performance, suggesting that the language learning system can effectively disregard noninformative visual information. Detection of temporal contiguity between multimodal stimuli may be useful in both infants and second-language learners not only for facilitating speech segmentation, but also for detecting word-object relationships in natural environments.
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Affiliation(s)
- Toni Cunillera
- Department of Basic Psychology, University of Barcelona, Barcelona, Spain.
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Abstract
Controversial results have been reported concerning the neural mechanisms involved in the processing of rewards and punishments. On the one hand, there is evidence suggesting that monetary gains and losses activate a similar fronto-subcortical network. On the other hand, results of recent studies imply that reward and punishment may engage distinct neural mechanisms. Using functional magnetic resonance imaging (fMRI) we investigated both regional and interregional functional connectivity patterns while participants performed a gambling task featuring unexpectedly high monetary gains and losses. Classical univariate statistical analysis showed that monetary gains and losses activated a similar fronto-striatal-limbic network, in which main activation peaks were observed bilaterally in the ventral striatum. Functional connectivity analysis showed similar responses for gain and loss conditions in the insular cortex, the amygdala, and the hippocampus that correlated with the activity observed in the seed region ventral striatum, with the connectivity to the amygdala appearing more pronounced after losses. Larger functional connectivity was found to the medial orbitofrontal cortex for negative outcomes. The fact that different functional patterns were obtained with both analyses suggests that the brain activations observed in the classical univariate approach identifies the involvement of different functional networks in the current task. These results stress the importance of studying functional connectivity in addition to standard fMRI analysis in reward-related studies.
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Affiliation(s)
- Estela Camara
- Department of Neuropsychology, University of Magdeburg Magdeburg, Germany
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Abstract
An increase in cognitive control has been systematically observed in responses produced immediately after the commission of an error. Such responses show a delay in reaction time (post-error slowing) and an increase in accuracy. To characterize the neurophysiological mechanism involved in the adaptation of cognitive control, we examined oscillatory electrical brain activity by electroencephalogram and its corresponding neural network by event-related functional magnetic resonance imaging in three experiments. We identified a new oscillatory theta-beta component related to the degree of post-error slowing in the correct responses following an erroneous trial. Additionally, we found that the activity of the right dorsolateral prefrontal cortex, the right inferior frontal cortex, and the right superior frontal cortex was correlated with the degree of caution shown in the trial following the commission of an error. Given the overlap between this brain network and the regions activated by the need to inhibit motor responses in a stop-signal manipulation, we conclude that the increase in cognitive control observed after the commission of an error is implemented through the participation of an inhibitory mechanism.
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Affiliation(s)
- Josep Marco-Pallarés
- Department of Neuropsychology, Otto von Guericke University, Magdeburg, Germany.
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Camara E. Virtual reality: applications in medicine and psychiatry. Hawaii Med J 1993; 52:332-3. [PMID: 8125774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Virtual reality (VR) is a coined description of a new computer-based technology that allows the user to enter a 3-D artificial world. Inside this world, the user can look around, move around and interact within computer worlds. The user can fly, visit exotic lands, play with molecules, "enter" cardiac chambers and watch blood swirl or do simulated surgery. The possibilities are staggering and it is important that physicians become literate in this visual experience. In this article I will introduce the technology in the field, discuss some medical applications already in use, and speculate on some potential uses in my field of interest: psychiatry.
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Affiliation(s)
- E Camara
- Dept. of Psychiatry John A. Burns School of Medicine, University of Hawaii
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Abstract
The aim of this study was to evaluate the place of pancreaticogastrostomy (PG) in reducing pancreatic
fistula after pancreatoduodenectomy. From January 1988 to June 1991, 32 consecutive patients (mean
age, 57 years) were operated on, 25 for malignant disease (78%). The pancreatic remnant was normal in
17 patients (53%) and sclerotic in the others. There was one operative death (3.1%) unrelated to PG.
Post-operative complications occurred in five patients (16%). Only two complications were related to
PG: 1 patient had anastomotic intra-gastric bleeding and was reoperated on, 1 patient with a normal
pancreatic remnant developed a pancreatic fistula (3.1%) treated conservatively. Reported series of PG, as well as our results, demonstrates that PG is associated with a dramatic
decrease of both pancreatic fistula and mortality rates. The risk of anastomotic haemorrhage can be
reduced by preventative ligation of submucosal gastric vessels. In conclusion, PG appears as a simple and reliable method of management of the pancreatic remnant
after pancreatoduodenectomy.
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Affiliation(s)
- A Sauvanet
- Service de Chirurgie Digestive, Université Paris VII, Hôpital Beaujon, Clichy, France
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Calabrese L, Danao T, Camara E, Wilke W. Chronic fatigue syndrome. Am Fam Physician 1992; 45:1205-13. [PMID: 1543105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Fatigue is one of the most common complaints among patients seen in the primary care setting. Chronic fatigue syndrome, which has recently been called chronic fatigue immune dysfunction syndrome, is distinctive, with an abrupt onset of symptoms that wax and wane for at least six months. Usually there is low-grade fever, pharyngitis and tender, but not enlarged, lymph nodes. The fatigue can be disabling and is often made worse by physical activity. Some patients with this disorder have also been found to have highly characteristic immunologic abnormalities. Treatment can be rewarding and is based on patient education and support, exercise and symptomatic therapies for abnormal sleep patterns, musculoskeletal pain and other symptoms.
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