Document Detail

Visual search for color differences with foveal and peripheral vision.
MedLine Citation:
PMID:  2231109     Owner:  NLM     Status:  MEDLINE    
Color differences required for fast parallel searches were measured for small and large display fields. The main purpose of the measurement was to test the hypothesis that serial searches obtained with small color differences in large display fields are due to poor discrimination in the peripheral visual field and to the need for foveal fixation. Results do not support this hypothesis but show that the color differences required for parallel search are just as large in a display confined to an area roughly the size of the fovea as in a large display. However, results also show that the color difference required for a fast, parallel search is dependent on the size of the stimuli in a large display field. This result is consistent with the possibility that poor discrimination in the periphery may contribute to the size of the required differences if the stimuli are small.
A L Nagy; R R Sanchez; T C Hughes
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Journal of the Optical Society of America. A, Optics and image science     Volume:  7     ISSN:  0740-3232     ISO Abbreviation:  J Opt Soc Am A     Publication Date:  1990 Oct 
Date Detail:
Created Date:  1990-12-07     Completed Date:  1990-12-07     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:  1995-2001     Citation Subset:  IM; S    
Department of Psychology, Wright State University, Dayton, Ohio 45424.
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MeSH Terms
Color Perception / physiology*
Fovea Centralis / physiology*
Sensory Thresholds
Visual Fields
Visual Perception / physiology*

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

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