Early adaptation to repeated unfamiliar faces across viewpoint changes in the right hemisphere: evidence from the N170 ERP component.

Details

Serval ID
serval:BIB_18AE2EEF1618
Type
Article: article from journal or magazin.
Collection
Publications
Title
Early adaptation to repeated unfamiliar faces across viewpoint changes in the right hemisphere: evidence from the N170 ERP component.
Journal
Neuropsychologia
Author(s)
Caharel S., d'Arripe O., Ramon M., Jacques C., Rossion B.
ISSN
0028-3932 (Print)
ISSN-L
0028-3932
Publication state
Published
Issued date
02/2009
Peer-reviewed
Oui
Volume
47
Number
3
Pages
639-643
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Abstract
Event-related potential (ERP) studies have shown that sensitivity to individual faces emerges as early as approximately 160ms in the human occipitotemporal cortex (N170). Here we tested whether this effect generalizes across changes in viewpoint. We recorded ERPs during an unfamiliar individual face adaptation paradigm. Participants were presented first with an adapting face ( approximately 3000ms) rotated 30 degrees in depth, followed by a second face (200ms) in a frontal view of either the same or a different identity. The N170 amplitude at right occipitotemporal sites to the second stimulus was reduced for repeated as compared to different faces. A bilateral adaptation effect emerged after 250ms following stimulus onset. These observations indicate that individual face representations activated as early as 160ms after stimulus onset in the right hemisphere show a substantial degree of generalization across viewpoints.
Keywords
Adolescent, Analysis of Variance, Brain/anatomy & histology, Brain/physiology, Electroencephalography, Evoked Potentials/physiology, Face, Female, Fixation, Ocular/physiology, Functional Laterality/physiology, Humans, Male, Occipital Lobe/physiology, Pattern Recognition, Visual/physiology, Photic Stimulation/methods, Reaction Time/physiology, Temporal Lobe/physiology, Time Factors, Visual Fields/physiology, Visual Perception/physiology, Young Adult
Pubmed
Web of science
Create date
29/03/2022 17:14
Last modification date
29/03/2022 17:37
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