Document Detail


Computational adaptation model and its predictions for color induction of first and second orders.
MedLine Citation:
PMID:  16169037     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The appearance of a patch of color or its contrast depends not only on the stimulus itself but also on the surrounding stimuli (induction effects-simultaneous contrast). A comprehensive computational physiological model is presented to describe chromatic adaptation of the first (retinal) and second (cortical) orders, and to predict the different chromatic induction effects. We propose that the chromatic induction of the first order that yields perceived complementary colors can be predicted by retinal adaptation mechanisms, contrary to previous suggestions. The second order of the proposed adaptation mechanism succeeds to predict the automatic perceived inhibition or facilitation of the central contrast of a texture stimulus, depending on the surrounding contrast. Furthermore, contrary to other models, this model is able to also predict the effect of variegated surrounding on the central perceived color.
Authors:
Hedva Spitzer; Yuval Barkan
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Publication Detail:
Type:  Journal Article     Date:  2005-09-16
Journal Detail:
Title:  Vision research     Volume:  45     ISSN:  0042-6989     ISO Abbreviation:  Vision Res.     Publication Date:  2005 Dec 
Date Detail:
Created Date:  2005-11-07     Completed Date:  2006-02-09     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0417402     Medline TA:  Vision Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  3323-42     Citation Subset:  IM    
Affiliation:
Department of Biomedical Engineering, Faculty of Engineering, Tel-Aviv University, Israel. hedva@eng.tau.ac.il
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MeSH Terms
Descriptor/Qualifier:
Adaptation, Physiological*
Color Perception / physiology*
Computational Biology
Contrast Sensitivity / physiology*
Humans
Models, Psychological*
Psychophysics

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