Document Detail

Variation of chromatic sensitivity across the life span.
MedLine Citation:
PMID:  11163613     Owner:  NLM     Status:  MEDLINE    
Thresholds were measured along three directions in color space for detecting an equiluminant color change of a set of bars embedded in a larger field of spatio-temporal achromatic noise for observers ranging in age from 3 months to 86 years. Pre-verbal observers were assessed with a forced-choice preferential-looking technique while older observers responded orally or manually. Over the life span, thresholds could be described along each color axis tested by a curve with two trends. Thresholds decreased with each doubling of age by nearly a factor of two until adolescence. Thereafter, thresholds increased by a factor of 1.4-2 with each doubling of age. Sensitivity to chromatic differences varied similarly along all three axes tested, suggesting uniformity in the sensitivity of chromatic mechanisms across the life span.
K Knoblauch; F Vital-Durand; J L Barbur
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Vision research     Volume:  41     ISSN:  0042-6989     ISO Abbreviation:  Vision Res.     Publication Date:  2001 Jan 
Date Detail:
Created Date:  2001-02-08     Completed Date:  2001-02-22     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0417402     Medline TA:  Vision Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  23-36     Citation Subset:  IM    
INSERM Unité 371, Cerveau et Vision, 18 avenue du Doyen Lépine, 69675 Bron, France.
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MeSH Terms
Aged, 80 and over
Aging / physiology*
Analysis of Variance
Child, Preschool
Color Perception / physiology*
Contrast Sensitivity / physiology*
Middle Aged

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