Document Detail

Tyndall's paradox of hue discrimination.
MedLine Citation:
PMID:  3351652     Owner:  NLM     Status:  MEDLINE    
We confirm a remarkable but forgotten property of human color vision that was described over 50 years ago by Tyndall [J. Opt. Soc. Am 23, 12 (1933)]: if wavelength discrimination is measured in the region of 455 nm, the sensitivity of the eye improves when a large fraction of the monochromatic light in each half of the matching field is replaced by white light that is common to the two halves. We demonstrate that a similar facilitation also occurs when the shortwave monochromatic components are held constant in luminance and a long-wave desaturant of increasing luminance is added to the shortwave discrimanda. We relate these phenomena to the properties of postreceptoral visual channels.
J D Mollon; O Estévez
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of the Optical Society of America. A, Optics and image science     Volume:  5     ISSN:  0740-3232     ISO Abbreviation:  J Opt Soc Am A     Publication Date:  1988 Jan 
Date Detail:
Created Date:  1988-04-28     Completed Date:  1988-04-28     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8402086     Medline TA:  J Opt Soc Am A     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  151-9     Citation Subset:  IM    
Department of Experimental Psychology, University of Cambridge, UK.
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MeSH Terms
Color Perception / physiology*
Discrimination (Psychology) / physiology*
Models, Psychological
Psychophysics / methods

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

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