Document Detail

Effects of isoluminant-background color on metacontrast and stroboscopic motion: interactions between sustained (P) and transient (M) channels.
MedLine Citation:
PMID:  2392835     Owner:  NLM     Status:  MEDLINE    
The magnitudes of metacontrast masking and of stroboscopic motion were investigated as a function of the color of isoluminant backgrounds on which the stimuli consisting of rectangular-shaped luminance decrements appeared. White, green, and red backgrounds were employed. Background isoluminance was obtained by minimal flicker settings with heterochromatic flicker of uniform fields. Both metacontrast and stroboscopic motion were decreased when red as compared to white or green backgrounds were used. Within the context of current sustained-transient channel approaches to visual masking and motion, these results indicate that the activity of transient channels is attenuated by red relative to white or green backgrounds. Moreover, these psychophysical findings may correspond to the suppressive effects of diffuse red light on neural activity in the transient M pathway of monkey.
B G Breitmeyer; M C Williams
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Vision research     Volume:  30     ISSN:  0042-6989     ISO Abbreviation:  Vision Res.     Publication Date:  1990  
Date Detail:
Created Date:  1990-10-01     Completed Date:  1990-10-01     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0417402     Medline TA:  Vision Res     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  1069-75     Citation Subset:  IM; S    
Department of Psychology, University of Houston, TX 77204-5341.
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MeSH Terms
Color Perception / physiology*
Contrast Sensitivity / physiology
Flicker Fusion / physiology
Middle Aged
Motion Perception / physiology*
Pattern Recognition, Visual / physiology
Perceptual Masking / physiology

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