Document Detail


Role of remote adaptation in perceived subjective color.
MedLine Citation:
PMID:  9168596     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Light adaptation to illumination that is presented peripherally changes the subjective color of a central Benham disk stimulus. In our experiments we kept the peripheral illumination achromatic and remote (not even adjacent to the test stimulus). Using a high-frame-rate monitor, we produced the subjective color stimulus, to our knowledge for the first time, on a computer screen in emulation of the Benham disk programs. The resulting changes in the perceived subjective color were as follows: (1) Remote adapting illumination caused a dramatic shift in the perceived subjective color with a span from red to green; (2) there was a trade-off dependence between the area and the intensity of the remote adapting illumination with respect to the perceived color of the test stimulus; (3) the effect of the remote adaptation showed no interocular interaction. This finding suggests that the effect is elicited from a low-level stage in the visual pathway. In addition, we were able to approximate experimentally the spatial profile of the contribution of the remote illumination through the shift in the perceived color. We also found an opposite general trend of color shifts that occurred when either the central stimulus luminance or the remote illumination was increased. A suggested model for the reversed color shifts trend is discussed.
Authors:
G Rotgold; H Spitzer
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of the Optical Society of America. A, Optics, image science, and vision     Volume:  14     ISSN:  1084-7529     ISO Abbreviation:  J Opt Soc Am A Opt Image Sci Vis     Publication Date:  1997 Jun 
Date Detail:
Created Date:  1997-06-23     Completed Date:  1997-06-23     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9800943     Medline TA:  J Opt Soc Am A Opt Image Sci Vis     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1223-30     Citation Subset:  IM    
Affiliation:
Department of Biomedical Engineering, Faculty of Engineering, Tel Aviv University, Israel.
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MeSH Terms
Descriptor/Qualifier:
Adaptation, Ocular*
Color Perception / physiology*
Humans
Light
Photic Stimulation / methods

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


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