Processing of normal, inverted, and scrambled faces in a patient with prosopagnosia: behavioural and eye tracking data.

Détails

ID Serval
serval:BIB_C64CC094183F
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Processing of normal, inverted, and scrambled faces in a patient with prosopagnosia: behavioural and eye tracking data.
Périodique
Brain Research. Cognitive Brain Research
Auteur(s)
 S., Raufaste E., Démonet J.F.
ISSN
0926-6410 (Print)
ISSN-L
0926-6410
Statut éditorial
Publié
Date de publication
2003
Peer-reviewed
Oui
Volume
17
Numéro
1
Pages
26-35
Langue
anglais
Notes
Publication types: Case Reports ; Comparative Study ; Journal Article ; Research Support, Non-U.S. Gov'tPublication Status: ppublish. PDF type: Research report
Résumé
In this study, we addressed the issue of a spared processing of faces in a patient (SB) with severe prosopagnosia. We designed an experiment comprising of two parts. In Part I, normal upright faces were entwined with scrambled faces, while in Part II normal upright faces were mixed with inverted faces, under unlimited time exposure. Performance, decision times, and eye movements were measured in both parts. The results indicated that SB categorised the normal faces better in the context of inverted faces than in the context of scrambled faces. Furthermore, SB's performance was better for the inverted faces than for the scrambled faces. Overall, SB performed better on the abnormal faces than on the normal faces, as did the control participants. Eye-tracking data showed that the pattern observed for the number of fixations and for exploration order was similar in SB and in controls. In the discussion, we propose that, despite his severe prosopagnosia, SB might have retained some kind of processing specific to face perception. Further investigations will be required, using limited time exposure, to determine the nature of this spared processing.
Mots-clé
Adolescent, Adult, Analysis of Variance, Confidence Intervals, Eye Movements/physiology, Face, Humans, Male, Photic Stimulation/methods, Prosopagnosia/physiopathology, Psychomotor Performance/physiology, Reaction Time/physiology
Pubmed
Web of science
Création de la notice
24/03/2013 19:36
Dernière modification de la notice
20/08/2019 16:41
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