Document Detail


Color perception is mediated by a plastic neural mechanism that is adjustable in adults.
MedLine Citation:
PMID:  12194876     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
An intensely debated issue concerning visual-experience-dependent neural plasticity is whether experience is required only to maintain function or whether information from experience is used actively, relieving the necessity to hard-wire all connections and allowing adaptive adjustments. Here, an active role for experience is demonstrated in circuits for color vision. Chromatic experience was altered using colored filters. Over days there was a shift in color perception, as measured by the wavelength of unique yellow, which persisted 1-2 weeks after the filters were discontinued. Moreover, color-deficient adults were shown to have altered weightings of inputs to chromatic channels, demonstrating a large neural adjustment to their inherited photopigment defect. Thus, a neural normalization mechanism for color perception, determined by visual experience, operates to compensate for large genetic differences in retinal architecture and for changes in chromatic environment.
Authors:
Jay Neitz; Joseph Carroll; Yasuki Yamauchi; Maureen Neitz; David R Williams
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Neuron     Volume:  35     ISSN:  0896-6273     ISO Abbreviation:  Neuron     Publication Date:  2002 Aug 
Date Detail:
Created Date:  2002-08-26     Completed Date:  2002-09-20     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  8809320     Medline TA:  Neuron     Country:  United States    
Other Details:
Languages:  eng     Pagination:  783-92     Citation Subset:  IM    
Affiliation:
Department of Cell Biology, Neurobiology, and Anatomy, Milwaukee, WI 53226, USA.
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MeSH Terms
Descriptor/Qualifier:
Adaptation, Physiological / physiology
Adult
Cell Count
Color Perception / physiology*
Female
Genetic Variation / physiology
Humans
Male
Neuronal Plasticity / physiology*
Photic Stimulation
Retinal Cone Photoreceptor Cells / physiology*
Retinal Pigments / chemistry,  genetics
Sex Characteristics
Vision, Ocular / physiology
Visual Cortex / physiology*
Visual Pathways / physiology*
Grant Support
ID/Acronym/Agency:
EY01319/EY/NEI NIH HHS; EY01931/EY/NEI NIH HHS; EY04367/EY/NEI NIH HHS; EY09303/EY/NEI NIH HHS; EY09620/EY/NEI NIH HHS
Chemical
Reg. No./Substance:
0/Retinal Pigments

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


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