Document Detail


Variant and invariant color perception in the near peripheral retina.
MedLine Citation:
PMID:  16783421     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Perceived shifts in hue that occur with increasing retinal eccentricity were measured by using an asymmetric color matching paradigm for a range of chromatic stimuli. Across nine observers a consistent pattern of hue shift was found; certain hues underwent large perceived shifts in appearance with increasing eccentricity, while for others little or no perceived shift was measured. In separate color naming experiments, red, blue, and yellow unique hues were found to be correlated with those hues that exhibited little or no perceptual shift with retinal eccentricity. Unique green, however, did not exhibit such a strong correlation. Hues that exhibited the largest perceptual shifts in the peripheral retina were found to correlate with intermediate hues that were equally likely to be identified by adjacent color naming mechanisms. However, once again the correlation was found to be weakest for the green mechanism. These data raise the possibility that perceptually unique hues are linked to color signals that represent the most reliable (minimally variant) chromatic information coming from the retina.
Authors:
Neil R A Parry; Declan J McKeefry; Ian J Murray
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of the Optical Society of America. A, Optics, image science, and vision     Volume:  23     ISSN:  1084-7529     ISO Abbreviation:  J Opt Soc Am A Opt Image Sci Vis     Publication Date:  2006 Jul 
Date Detail:
Created Date:  2006-06-19     Completed Date:  2006-10-05     Revised Date:  -    
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:  1586-97     Citation Subset:  IM    
Affiliation:
Vision Science Center, Manchester Royal Eye Hospital, Manchester, M13 9WH, UK.
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MeSH Terms
Descriptor/Qualifier:
Adult
Color*
Color Perception / physiology*
Differential Threshold / physiology
Female
Humans
Male
Retina / physiology*
Sensory Thresholds / physiology
Visual Fields / physiology*

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


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