Document Detail


Spatial interactions in apparent contrast: individual differences in enhancement and suppression effects.
MedLine Citation:
PMID:  8236856     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The apparent contrast of a small grating patch embedded in the center of an annular grating filled surround was studied as a function of the surround to central patch contrast ratio, the width of the annulus, and the contrast level of the central patch. Data from ten observers show large individual differences in apparent contrast, but these differences can be interpreted in terms of the relative strength of two interacting mechanisms. One mechanism mediates enhancement of the central patch. The other mediates suppression.
Authors:
M W Cannon; S C Fullenkamp
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Vision research     Volume:  33     ISSN:  0042-6989     ISO Abbreviation:  Vision Res.     Publication Date:  1993 Aug 
Date Detail:
Created Date:  1993-11-26     Completed Date:  1993-11-26     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0417402     Medline TA:  Vision Res     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  1685-95     Citation Subset:  IM    
Affiliation:
Armstrong Laboratory AL/CFHP, Wright-Patterson Air Force Base, OH 45433-6573.
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MeSH Terms
Descriptor/Qualifier:
Contrast Sensitivity / physiology*
Humans
Psychometrics
Sensory Thresholds / physiology

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


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