Impaired holistic processing of unfamiliar individual faces in acquired prosopagnosia.

Details

Serval ID
serval:BIB_58C75501D9EA
Type
Article: article from journal or magazin.
Collection
Publications
Title
Impaired holistic processing of unfamiliar individual faces in acquired prosopagnosia.
Journal
Neuropsychologia
Author(s)
Ramon M., Busigny T., Rossion B.
ISSN
1873-3514 (Electronic)
ISSN-L
0028-3932
Publication state
Published
Issued date
03/2010
Peer-reviewed
Oui
Volume
48
Number
4
Pages
933-944
Language
english
Notes
Publication types: Comparative Study ; Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Abstract
Prosopagnosia is an impairment at individualizing faces that classically follows brain damage. Several studies have reported observations supporting an impairment of holistic/configural face processing in acquired prosopagnosia. However, this issue may require more compelling evidence as the cases reported were generally patients suffering from integrative visual agnosia, and the sensitivity of the paradigms used to measure holistic/configural face processing in normal individuals remains unclear. Here we tested a well-characterized case of acquired prosopagnosia (PS) with no object recognition impairment, in five behavioral experiments (whole/part and composite face paradigms with unfamiliar faces). In all experiments, for normal observers we found that processing of a given facial feature was affected by the location and identity of the other features in a whole face configuration. In contrast, the patient's results over these experiments indicate that she encodes local facial information independently of the other features embedded in the whole facial context. These observations and a survey of the literature indicate that abnormal holistic processing of the individual face may be a characteristic hallmark of prosopagnosia following brain damage, perhaps with various degrees of severity.
Keywords
Brain Injuries/complications, Face, Female, Humans, Male, Middle Aged, Neuropsychological Tests, Pattern Recognition, Visual, Photic Stimulation, Prosopagnosia/etiology, Prosopagnosia/psychology, Psychomotor Performance, Reaction Time, Young Adult
Pubmed
Web of science
Create date
29/03/2022 17:14
Last modification date
29/03/2022 17:38
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