Document Detail


Mechanisms of color vision.
MedLine Citation:
PMID:  3048707     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We review the physiological and psychophysical research on mechanisms of color vision. Psychophysical work has led to the formulation of explicit theories of the early stages of color vision. The principal postulates of these theories have been confirmed by physiologists (e.g., the existence of three classes of receptors and second-stage mechanisms in which the signals from these receptors are compared), but some important features of the psychophysical scheme have found limited physiological support. One such issue is the absence of the unitary "achromatic" mechanism required by psychophysicists. We know a good deal less about the chromatic analyses that occur beyond these early stages. Although physiologists have devoted much effort to the study of cortical mechanisms, little of this work has been guided by clear ideas of the tasks performed by them. The provision of color constancy and the ability to segment scenes are perhaps the foremost concerns of chromatic mechanisms, and recent psychophysical work bearing on these problems offers physiologists clearer guidance on what to seek with their electrodes.
Authors:
P Lennie; M D'Zmura
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Critical reviews in neurobiology     Volume:  3     ISSN:  0892-0915     ISO Abbreviation:  Crit Rev Neurobiol     Publication Date:  1988  
Date Detail:
Created Date:  1988-11-21     Completed Date:  1988-11-21     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8710803     Medline TA:  Crit Rev Neurobiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  333-400     Citation Subset:  IM    
Affiliation:
Center for Visual Science, University of Rochester, New York.
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MeSH Terms
Descriptor/Qualifier:
Animals
Color Perception / physiology*
Humans
Photic Stimulation
Retina / physiology*
Signal Transduction
Visual Pathways / physiology

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


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