Face recognition and postero-inferior hemispheric lesions.

Détails

ID Serval
serval:BIB_F28E68490446
Type
Article: article d'un périodique ou d'un magazine.
Sous-type
Etude de cas (case report): rapporte une observation et la commente brièvement.
Collection
Publications
Titre
Face recognition and postero-inferior hemispheric lesions.
Périodique
Neuropsychologia
Auteur(s)
Clarke S., Lindemann A., Maeder P., Borruat F.X., Assal G.
ISSN
0028-3932
Statut éditorial
Publié
Date de publication
1997
Peer-reviewed
Oui
Volume
35
Numéro
12
Pages
1555-1563
Langue
anglais
Notes
Publication types: Case Reports ; Clinical Trial ; Journal Article ; Research Support, Non-U.S. Gov't
Résumé
Two patients with severe and lasting prosopagnosia were studied for visuo-cognitive functions and anatomo-clinical correlations. Both patients were deficient in recognizing familiar faces and items of previously well known categories (plants and fish for patient 1, mountains for patient 2). Patient 2, but not patient 1, was also deficient for matching of unknown faces. Patient 1, but not patient 2, was achromatopsic. Both patients had bilateral symmetrical lesions. Patient 1 had a lesion of the inferior occipito-temporal cortex, including inferior parts of early stage visual areas. Patient 2 had a lesion of the inferior temporal and fusiform gyri anterior to the early stage visual areas. When compared in Talairach space, the lesions of both patients had minimal overlap. Thus, severe and lasting prosopagnosia was associated with two almost exclusive lesion sites in the postero-inferior part of the hemispheres. Comparison between activation studies of face processing (by others) and our lesion study uncovered several paradoxes. Lesions of regions involved in a given task in normal subjects do not produce a deficit in this task, as shown here for gender discrimination and partially for face matching. Conversely, lesions of a region not specifically involved in a given task in normal subjects can produce a deficit in the task, as shown here for face identification.
Mots-clé
Brain Diseases/psychology, Brain Diseases/radiography, Cognition/physiology, Craniocerebral Trauma/complications, Craniocerebral Trauma/psychology, Face, Female, Humans, Male, Middle Aged, Neuropsychological Tests, Social Perception, Tomography, X-Ray Computed, Visual Cortex/radiography
Pubmed
Web of science
Création de la notice
11/04/2008 8:23
Dernière modification de la notice
20/08/2019 16:19
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