Document Detail

Chromatic shadow compatibility and cone-excitation ratios.
MedLine Citation:
PMID:  15770977     Owner:  NLM     Status:  MEDLINE    
Logvinenko [Perception 31, 201 (2002)] asserts that Adelson's wall-of-blocks illusion [Science 262, 2042 (1993)], where identical gray-cube surface tops appear to differ in brightness, arises when the surfaces surrounding the cube tops are shadow compatible, creating a concomitant illusion of transparency. We replicated Logvinenko's main findings in the chromatic domain across three experiments in which observers match cube tops in hue, saturation, and brightness. A second set of stimuli adjusted cone-excitation ratios across the apparent transparency border [Proc. R. Soc. London 257, 115 (1994)], which enhanced lightness and brightness constancy but only when the stimuli varied in both chromaticity and intensity.
Genevieve M Heckman; Jeffrey A Muday; James A Schirillo
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Publication Detail:
Type:  Clinical Trial; Journal Article    
Journal Detail:
Title:  Journal of the Optical Society of America. A, Optics, image science, and vision     Volume:  22     ISSN:  1084-7529     ISO Abbreviation:  J Opt Soc Am A Opt Image Sci Vis     Publication Date:  2005 Mar 
Date Detail:
Created Date:  2005-03-17     Completed Date:  2005-05-05     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  9800943     Medline TA:  J Opt Soc Am A Opt Image Sci Vis     Country:  United States    
Other Details:
Languages:  eng     Pagination:  401-15     Citation Subset:  IM    
Department of Psychology, Wake Forest University, Winston-Salem, North Carolina 27109, USA.
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MeSH Terms
Color Perception / physiology*
Illusions / physiology*
Photic Stimulation / methods*
Retinal Cone Photoreceptor Cells / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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