Document Detail

Red-green color discrimination in peripheral vision.
MedLine Citation:
PMID:  8447096     Owner:  NLM     Status:  MEDLINE    
Color discrimination thresholds were measured for four colors from the red-green portion of the visible spectrum. Thresholds were measured for a stimulus field 1.5 deg in diameter in the fovea and at three locations on the nasal retina (eccentricities of 5, 20 and 40 deg). Outside the fovea threshold increased exponentially with eccentricity and the slope of the function was similar for all four standard colors. Peripheral thresholds were adequately described by an equation developed for foveal red-green thresholds by Boynton and Kambe [(1980) Color Research and Applications, 5, 13-23] and also by a modified form of this equation containing a rod term. Differences between foveal and peripheral thresholds were characterized by changes in two coefficients in the equations. The CIELUV color difference equation also provided a reasonably good description of peripheral thresholds.
A L Nagy; S Wolf
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Vision research     Volume:  33     ISSN:  0042-6989     ISO Abbreviation:  Vision Res.     Publication Date:  1993 Jan 
Date Detail:
Created Date:  1993-04-08     Completed Date:  1993-04-08     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0417402     Medline TA:  Vision Res     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  235-42     Citation Subset:  IM    
Department of Psychology, Wright State University, Dayton, OH 45435.
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MeSH Terms
Color Perception / physiology*
Differential Threshold / physiology
Flicker Fusion / physiology
Fovea Centralis / physiology
Photoreceptor Cells / physiology
Visual Fields / physiology*
Grant Support

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