Document Detail

Fourier analysis of the stimuli for pattern-induced flicker colors.
MedLine Citation:
PMID:  1455719     Owner:  NLM     Status:  MEDLINE    
Pattern-induced flicker colors (PIFCs) were observed and color matched in rotating discs from which higher-harmonic Fourier components in the square-wave temporal luminance functions of a conventional black-and-white Benham disc had been removed. Since both reddish-brown and blue PIFCs were visible with purely sinusoidal stimuli they cannot result from differences in temporal stimulus shape or pattern and do not provide evidence for a temporal coding theory of color. Green PIFCs differed in that they did require the presence of additional harmonics. In a second experiment the luminance means upon which the sinusoidal PIFC stimuli were imposed were varied. The results show that color is determined by the phase of the time-varying contrast between the two parts of the stimulus pattern. This points to a site proximal to the outer plexiform layer for the phase-sensitive interaction causing PIFCs.
M F Tritsch
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Vision research     Volume:  32     ISSN:  0042-6989     ISO Abbreviation:  Vision Res.     Publication Date:  1992 Aug 
Date Detail:
Created Date:  1993-01-06     Completed Date:  1993-01-06     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0417402     Medline TA:  Vision Res     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  1461-70     Citation Subset:  IM    
Institut für Zoologie, Johannes Gutenberg Universität, Mainz, Fed. Rep. Germany.
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MeSH Terms
Color Perception / physiology*
Flicker Fusion / physiology*
Fourier Analysis*
Pattern Recognition, Visual / physiology
Physical Stimulation
Time Factors

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

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