Document Detail

Visual suppression and its effect upon color and luminance sensitivity.
MedLine Citation:
PMID:  7975334     Owner:  NLM     Status:  MEDLINE    
Psychophysical increment thresholds were compared for periods of phenomenological dominance or suppression produced by different stimulation of the two eyes. Three experimental procedures were used; binocular rivalry, permanent suppression and flash suppression. The amount of suppression produced by each procedure was evaluated under conditions intended to accentuate color or luminance system contribution to the detection of a spectral flash. All three procedures resulted in a different pattern of color and luminance suppression. Binocular rivalry suppressed color sensitivity more than luminance and within color, blue (439 nm) sensitivity was more suppressed than red (613 nm). Permanent suppression resulted in a similar pattern of suppression but only blue color sensitivity was reliably more suppressed than luminance sensitivity. Flash suppression produced distinctly different results such that blue color sensitivity was reliably less suppressed than luminance or red color sensitivity, which were not different from each other. Taken together these results provide clues as to where and when the physiological processes mediating visual suppression may be found in the nervous system.
T L Ooi; M S Loop
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Vision research     Volume:  34     ISSN:  0042-6989     ISO Abbreviation:  Vision Res.     Publication Date:  1994 Nov 
Date Detail:
Created Date:  1994-12-29     Completed Date:  1994-12-29     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0417402     Medline TA:  Vision Res     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  2997-3003     Citation Subset:  IM    
Department of Physiological Optics, School of Optometry/Medical Center, University of Alabama at Birmingham 35294.
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MeSH Terms
Color Perception / physiology*
Photic Stimulation
Sensory Thresholds
Vision Disparity / physiology*
Vision, Binocular / physiology*
Grant Support

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