Document Detail


Reduced spatial sensitization on nonuniform backgrounds.
MedLine Citation:
PMID:  1528704     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Spatial sensitivity (Westheimer) functions, when measured on nonuniform backgrounds made up of light dots of 12 min arc, were found to differ in shape, depending on the polarity of the central area on which the test spot was placed. When thresholds were measured on the dark centre between light dots, ie on the adapting-field illumination, the resulting curve was similar to the control curve, measured on a uniform background equated for flux. In comparison, thresholds measured on a central light dot, serving as a pedestal, peaked at larger background diameters and showed much less sensitization compared to the control function.
Authors:
A Kurtenbach; L Spillmann
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Perception     Volume:  21     ISSN:  0301-0066     ISO Abbreviation:  Perception     Publication Date:  1992  
Date Detail:
Created Date:  1992-10-20     Completed Date:  1992-10-20     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0372307     Medline TA:  Perception     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  63-8     Citation Subset:  IM    
Affiliation:
Neurologische Klinik mit Abteilung für Neurophysiologie, Freiburg, Germany.
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MeSH Terms
Descriptor/Qualifier:
Adaptation, Ocular
Contrast Sensitivity*
Fixation, Ocular
Humans
Sensory Thresholds / physiology*
Visual Perception*

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


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