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Your search keyword '"Elodie Guichart-Gomez"' showing total 2 results
Start Over Author "Elodie Guichart-Gomez" Topic 050105 experimental psychology
2 results on '"Elodie Guichart-Gomez"'

1. Executive and social-cognitive determinants of environmental dependency syndrome in behavioral frontotemporal dementia

Author

Marie Sarazin, Elodie Guichart-Gomez, Emma Flanagan, Valérie Hahn, Maxime Bertoux, Julien Lagarde, and Michael Hornberger

Subjects
Male, Theory of Mind, Semantic dementia, Neuropsychological Tests, 050105 experimental psychology, Executive Function, 03 medical and health sciences, Cognition, 0302 clinical medicine, Wisconsin Card Sorting Test, Social cognition, medicine, Humans, 0501 psychology and cognitive sciences, Aged, Retrospective Studies, 05 social sciences, Middle Aged, medicine.disease, Neuropsychology and Physiological Psychology, Frontotemporal Dementia, Faux pas, Female, Comprehension, Attribution, Psychology, 030217 neurology & neurosurgery, Clinical psychology, Executive dysfunction, Frontotemporal dementia
Abstract

Objective: Environmental dependency syndrome (EDS), including utilization (UB) and imitation (IB) behaviors, is often reported in behavioral variant frontotemporal dementia (bvFTD). These behaviors are commonly attributed to executive dysfunction. However, inconsistent associations between EDS and poor executive performance has led to an alternative “social hypothesis,” instead implicating patients’ misinterpretation of the examiner’s intention. We investigated the possible explanatory cognitive mechanisms of EDS in bvFTD by relating UB and IB to performance on tests of executive functioning and theory of mind (ToM). Method: This study analyzed retrospective data of 32 bvFTD patients. Data included scores of UB and IB, various executive measures, and ToM assessment using the faux pas test, from which we extracted a mental attribution score. Results: Of the patients, 15.6% and 40.6% exhibited UB and IB, respectively. We conducted an automatic linear modeling analysis with executive and mental attribution measures as predictor variables, and UB and IB sequentially considered as target variables. ToM mental attribution score, visual abstraction and flexibility measures from the Wisconsin Card Sorting Test, and motor sequence performance significantly (corrected ps < .05) predicted IB. No executive or ToM measures significantly predicted UB. Conclusions: These findings reveal a complex interaction between executive dysfunction and mental attribution deficits influencing the prevalence of EDS in bvFTD. Further investigation is required to improve our understanding of the mechanisms underlying these behaviors.

Published
2018

2. Effortless control: executive attention and conscious feeling of mental effort are dissociable

Author

Stanislas Dehaene, Damien Galanaud, Marie-Odile Habert, Laurent D. Cohen, Jean-Claude Willer, Lionel Naccache, Elodie Guichart-Gomez, Neuroimagerie cognitive (LCogn), Université Paris-Sud - Paris 11 (UP11)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de la Santé et de la Recherche Médicale (INSERM), Service Hospitalier Frédéric Joliot (SHFJ), Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), CEntre de REcherches en MAthématiques de la DEcision (CEREMADE), Université Paris Dauphine-PSL, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Service de Neurologie [CHU Pitié-Salpêtrière], IFR70-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Laboratoire d'Imagerie Fonctionnelle (LIF), Université Pierre et Marie Curie - Paris 6 (UPMC)-IFR14-IFR49-Institut National de la Santé et de la Recherche Médicale (INSERM), Service de Médecine nucléaire [CHU Pitié-Salpétrière], CHU Pitié-Salpêtrière [AP-HP], Imagerie médicale et quantitative, Institut National de la Santé et de la Recherche Médicale (INSERM), Service de Neuroradiologie [CHU Pitié-Salpêtrière], Centre de résonance magnétique biologique et médicale (CRMBM), Aix Marseille Université (AMU)-Assistance Publique - Hôpitaux de Marseille (APHM)-Centre National de la Recherche Scientifique (CNRS), Physiologie et physiopathologie de la motricité chez l'homme, Université Pierre et Marie Curie - Paris 6 (UPMC)-IFR70-Institut National de la Santé et de la Recherche Médicale (INSERM), Fédération des Pathologies du Sommeil, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Centre National de la Recherche Scientifique (CNRS)-Université Paris Dauphine-PSL, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Service de médecine nucléaire [CHU Pitié-Salpétrière], Assistance Publique - Hôpitaux de Marseille (APHM)-Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Service de neurologie 1 [CHU Pitié-Salpétrière], and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)

Subjects
Cingulate cortex, Emotions, MESH: Frontal Lobe, Neuropsychological Tests, Choice Behavior, Brain mapping, MESH: Linear Models, Developmental psychology, Behavioral Neuroscience, Mental Processes, 0302 clinical medicine, Attention, Evoked Potentials, MESH: Mental Processes, MESH: Brain Mapping, media_common, Brain Mapping, MESH: Middle Aged, 05 social sciences, Electroencephalography, MESH: Neuropsychological Tests, Cognition, Galvanic Skin Response, MESH: Magnetic Resonance Imaging, Cine, Middle Aged, MESH: Case-Control Studies, Frontal Lobe, MESH: Evoked Potentials, MESH: Photic Stimulation, medicine.anatomical_structure, Feeling, MESH: Galvanic Skin Response, Female, Psychology, Somatic marker hypothesis, Cognitive psychology, Adult, Stroop Paradigm, Cognitive Neuroscience, media_common.quotation_subject, Magnetic Resonance Imaging, Cine, Experimental and Cognitive Psychology, MESH: Psychomotor Performance, MESH: Choice Behavior, behavioral disciplines and activities, 050105 experimental psychology, 03 medical and health sciences, MESH: Electroencephalography, Reaction Time, medicine, Humans, 0501 psychology and cognitive sciences, Anterior cingulate cortex, MESH: Emotions, MESH: Attention, MESH: Humans, [SDV.BA.MVSA]Life Sciences [q-bio]/Animal biology/Veterinary medicine and animal Health, MESH: Adult, MESH: Reaction Time, MESH: Cognition Disorders, Brain Injuries, Case-Control Studies, MESH: Brain Injuries, Linear Models, Consciousness, Cognition Disorders, MESH: Female, Photic Stimulation, Psychomotor Performance, 030217 neurology & neurosurgery
Abstract

International audience; Recruitment of executive attention is normally associated to a subjective feeling of mental effort. Here we investigate the nature of this coupling in a patient with a left mesio-frontal cortex lesion including the anterior cingulate cortex (ACC), and in a group of comparison subjects using a Stroop paradigm. We show that in normal subjects, subjective increases in effort associated with executive control correlate with higher skin-conductance responses (SCRs). However, our patient experienced no conscious feeling of mental effort and showed no SCR, in spite of exhibiting normal executive control, and residual right anterior cingulate activity measured with event-related potentials (ERPs). Finally, this patient demonstrated a pattern of impaired behavior and SCRs in the Iowa gambling task-elaborated by Damasio, Bechara and colleagues-replicating the findings reported by these authors for other patients with mesio-frontal lesions. Taken together, these results call for a theoretical refinement by revealing a decoupling between conscious cognitive control and consciously reportable feelings. Moreover, they reveal a fundamental distinction, observed here within the same patient, between the cognitive operations which are depending on normal somatic marker processing, and those which are withstanding to impairments of this system.

Published
2005
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