Document Detail

Trichromatic opponent color classification.
MedLine Citation:
PMID:  10615508     Owner:  NLM     Status:  MEDLINE    
Stimuli varying in intensity and chromaticity, presented on numerous backgrounds, were classified into red/green, blue/yellow and white/black opponent color categories. These measurements revealed the shapes of the boundaries that separate opponent colors in three-dimensional color space. Opponent color classification boundaries were generally not planar, but their shapes could be summarized by a piecewise linear model in which increment and decrement color signals are combined with different weights at two stages to produce opponent color sensations. The effect of background light on classification was largely explained by separate gain changes in increment and decrement cone signals.
E J Chichilnisky; B A Wandell
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Vision research     Volume:  39     ISSN:  0042-6989     ISO Abbreviation:  Vision Res.     Publication Date:  1999 Oct 
Date Detail:
Created Date:  2000-01-24     Completed Date:  2000-01-24     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0417402     Medline TA:  Vision Res     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  3444-58     Citation Subset:  IM    
Department of Psychology, Stanford University, CA 94305, USA.
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MeSH Terms
Adaptation, Ocular / physiology*
Color Perception / physiology*
Computational Biology
Models, Psychological*
Psychological Tests
Retinal Cone Photoreceptor Cells / physiology
Grant Support
R01-EY03164-16/EY/NEI NIH HHS

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