Document Detail

Temporal induction of blackness--I. Color appearance.
MedLine Citation:
PMID:  2635469     Owner:  NLM     Status:  MEDLINE    
Three color-normal observers described the appearance of colors under conditions of temporal induction. One of four inducing fields (unique blue, unique green, unique yellow, unique white) was foveally viewed for 5 sec followed immediately by a 400 msec reference stimulus of the same size (0.75 deg) and spatial location as the inducing field. The reference stimulus was 3 or 5 td and appeared achromatic to the observer when viewed without the inducing field. After presentation of this temporal sequence, the observers described the reference stimulus by assigning percentages to the terms red, green, yellow, blue, white and black. The range of inducing field intensities was -0.4-3.2 log td. Both chromatic and achromatic induction occurred at low illuminance levels of the inducing fields. As the illuminance of the inducing field increased, the reference stimulus gradually became blacker and the chromatic components less prominent. The minimum illuminance level at which the reference appeared 100% black was the same for the four different inducing fields.
V J Volbrecht; J S Werner; B R Wooten
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Vision research     Volume:  29     ISSN:  0042-6989     ISO Abbreviation:  Vision Res.     Publication Date:  1989  
Date Detail:
Created Date:  1990-06-14     Completed Date:  1990-06-14     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0417402     Medline TA:  Vision Res     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  1425-36     Citation Subset:  IM    
Department of Psychology, University of Colorado, Boulder 80309.
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MeSH Terms
Color Perception / physiology*
Color Perception Tests
Contrast Sensitivity / physiology
Fovea Centralis / physiology
Photic Stimulation / instrumentation,  methods
Visual Pathways / physiology*
Grant Support

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

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