Document Detail

The pattern ERG in response to colored stimuli.
MedLine Citation:
PMID:  3665705     Owner:  NLM     Status:  MEDLINE    
The pattern-evoked electroretinogram (PERG) was studied in response to square-wave stripe patterns contrasting either between dark and colored stripes ("red-black" or "green-black" luminance contrast pattern) or between the two colors (red-green chromatic contrast pattern). All lights were matched in photopic luminance. A two-channel Maxwellian view system was used to present the stimuli in the onset-offset mode. When no pattern was present a mixture of both colors was seen. Different spatial frequencies were studied and the amplitudes of the onset response were evaluated. When the two luminance contrast patterns were presented, the responses showed a spatial selectivity. However the combination of the two colors (red-green contrast) resulted in a monotonic decrease of the response with spatial frequency. The spatially selective behavior of the response to luminance contrast patterns could be associated with the on-off center-surround organization of retinal receptive fields. The behavior of the response to chromatic-contrast patterns, on the other hand, could be explained by the action of color-opponent center-surround receptive fields as described in the primate.
M Korth; R Rix
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Documenta ophthalmologica. Advances in ophthalmology     Volume:  65     ISSN:  0012-4486     ISO Abbreviation:  Doc Ophthalmol     Publication Date:  1987 Jan 
Date Detail:
Created Date:  1987-12-15     Completed Date:  1987-12-15     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0370667     Medline TA:  Doc Ophthalmol     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  71-7     Citation Subset:  IM    
University Eye Hospital, Erlangen, FRG.
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MeSH Terms
Color Perception*
Electroretinography / methods
Form Perception / physiology*
Pattern Recognition, Visual / physiology*

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

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