Document Detail

Chromatic induction with remote chromatic contrast varied in magnitude, spatial frequency, and chromaticity.
MedLine Citation:
PMID:  10746126     Owner:  NLM     Status:  MEDLINE    
Chromatic induction from a surround is attenuated by chromatic contrast within a remote region outside of the surround (Shevell & Wei, 1998, Vision Research, 38, 1561-1566). The present study reports hue-cancellation measurements that show the attenuation depends on the magnitude, spatial frequency and chromaticity of remote chromatic contrast. Spatial-frequency tuning is shown by maximal attenuation of induction with remote contrast elements of the same size as the test. Experiments with various chromaticities of remote contrast show that S-cone stimulation within the remote region has a much weaker effect than L-/M-cone chromatic contrast, and does not depend on whether the S-cone stimulation is uniform or uneven across the region. Overall, the results show that remote L/M contrast affects classical chromatic induction, with its effect depending on the spatial frequency and magnitude of contrast. The influence of remote S-cone stimulation, on the other hand, is relatively weak and depends on only the S-cone spatial average, at least when S-cone stimulation by the test and its immediate surround is minimal (as in all experiments here).
C S Barnes; J Wei; S K Shevell
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Vision research     Volume:  39     ISSN:  0042-6989     ISO Abbreviation:  Vision Res.     Publication Date:  1999 Oct 
Date Detail:
Created Date:  2000-04-20     Completed Date:  2000-04-20     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0417402     Medline TA:  Vision Res     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  3561-74     Citation Subset:  IM    
Department of Psychology, University of Chicago, IL 60637, USA.
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MeSH Terms
Color Perception / physiology*
Contrast Sensitivity / physiology
Photic Stimulation / methods
Retinal Cone Photoreceptor Cells / physiology*
Space Perception / physiology
Grant Support

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