Document Detail


Color-luminance relationships and the McCollough effect.
MedLine Citation:
PMID:  10883575     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The McCollough effect is an orientation-specific color aftereffect induced by adapting to colored gratings. We examined how the McCollough effect depends on the relationships between color and luminance within the inducing and test gratings and compared the aftereffects to the color changes predicted from selective adaptation to different color-luminance combinations. Our results suggest that the important contingency underlying the McCollough effect is between orientation and color-luminance direction and are consistent with sensitivity changes within mechanisms tuned to specific color-luminance directions. Aftereffects are similar in magnitude for adapting color pairs that differ only in S cone excitation or L and M cone excitation, and they have a similar dependence on spatial frequency. In particular, orientation-specific aftereffects are induced for S cone colors even when the grating frequencies are above the S cone resolution limit. Thus, the McCollough effect persists even when different cone classes encode the orientation and color of the gratings.
Authors:
M A Webster; G Malkoc
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Perception & psychophysics     Volume:  62     ISSN:  0031-5117     ISO Abbreviation:  Percept Psychophys     Publication Date:  2000 May 
Date Detail:
Created Date:  2000-08-15     Completed Date:  2000-08-15     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0200445     Medline TA:  Percept Psychophys     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  659-72     Citation Subset:  IM    
Affiliation:
Department of Psychology, University of Nevada, Reno 89557, USA. mwebster@scs.unr.edu
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MeSH Terms
Descriptor/Qualifier:
Color Perception*
Humans
Light*
Grant Support
ID/Acronym/Agency:
EY10834/EY/NEI NIH HHS

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