Document Detail


Sex-contingent face aftereffects depend on perceptual category rather than structural encoding.
MedLine Citation:
PMID:  17870064     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Many studies have used visual adaptation to investigate how recent experience with faces influences perception. While faces similar to those seen during adaptation phases are typically perceived as more 'normal' after adaptation, it is possible to induce aftereffects in one direction for one category (e.g. female) and simultaneously induce aftereffects in the opposite direction for another category (e.g. male). Such aftereffects could reflect 'category-contingent' adaptation of neurons selective for perceptual category (e.g. male or female) or 'structure-contingent' adaptation of lower-level neurons coding the physical characteristics of different face patterns. We compared these explanations by testing for simultaneous opposite after effects following adaptation to (a) two groups of faces from distinct sex categories (male and female) or (b) two groups of faces from the same sex category (female and hyper-female) where the structural differences between the female and hyper-female groups were mathematically identical to those between male and female groups. We were able to induce opposite aftereffects following adaptation between sex categories but not after adaptation within a sex category. These findings indicate the involvement of neurons coding perceptual category in sex-contingent face aftereffects and cannot be explained by neurons coding only the physical aspects of face patterns.
Authors:
P E G Bestelmeyer; B C Jones; L M Debruine; A C Little; D I Perrett; A Schneider; L L M Welling; C A Conway
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Publication Detail:
Type:  Journal Article     Date:  2007-09-17
Journal Detail:
Title:  Cognition     Volume:  107     ISSN:  0010-0277     ISO Abbreviation:  Cognition     Publication Date:  2008 Apr 
Date Detail:
Created Date:  2008-03-17     Completed Date:  2008-06-10     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0367541     Medline TA:  Cognition     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  353-65     Citation Subset:  IM    
Affiliation:
Face Research Laboratory, School of Psychology, University of Aberdeen, Aberdeen, Scotland, UK.
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MeSH Terms
Descriptor/Qualifier:
Cognition*
Face*
Female
Humans
Male
Sex Factors
Visual Perception*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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