Document Detail

More than three different cone pigments among people with normal color vision.
MedLine Citation:
PMID:  8451836     Owner:  NLM     Status:  MEDLINE    
A fundamental feature of normal color vision is that red and green lights can be mixed to appear identical with a monochromatic yellow light. Another characteristic of normal color vision is that people often disagree on the amounts of red and green needed in the mixture to exactly match the yellow. Comparison of such color vision differences with photopigment gene differences reveals that a serine/alanine polymorphism at amino acid position 180 of X-encoded pigments can account for this type of color vision variation. This amino acid change shifts the spectrum of the pigment produced by about 6 nm, a value that would predict a larger minimum color vision difference between individuals than is actually observed. This discrepancy can be explained if, counter to the Young-Helmholtz theory as the explanation of trichromacy, many people with normal color vision have more than three spectrally different cone pigments.
J Neitz; M Neitz; G H Jacobs
Related Documents :
16170476 - Evaluation of polymerization-dependent changes in color and translucency of resin compo...
15612286 - Opposing natural selection from herbivores and pathogens may maintain floral-color vari...
12211556 - Colorimetry-based retardation measurement method with white-light interference.
1084336 - An acquired color defect of the opponent-color system.
20870526 - Fine motor control: an emg study of ability of the thumb in healthy hands of adult subj...
16119026 - Prerequisites for proper curing.
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Vision research     Volume:  33     ISSN:  0042-6989     ISO Abbreviation:  Vision Res.     Publication Date:  1993 Jan 
Date Detail:
Created Date:  1993-04-14     Completed Date:  1993-04-14     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0417402     Medline TA:  Vision Res     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  117-22     Citation Subset:  IM    
Department of Cellular Biology and Anatomy, Medical College of Wisconsin, Milwaukee 53226.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Base Sequence
Color Perception / genetics*
Genes / physiology
Linkage (Genetics)
Molecular Sequence Data
Photoreceptor Cells / physiology*
Polymorphism, Genetic
Retinal Pigments / genetics*
X Chromosome / physiology
Grant Support
Reg. No./Substance:
0/Retinal Pigments

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

Previous Document:  Spatial reconstruction of signals from short-wavelength cones.
Next Document:  What does post-adaptation color appearance reveal about cortical color representation?