Document Detail


A maximum motion technique for assessment of color vision defects.
MedLine Citation:
PMID:  9865075     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Several luminance-matching methods, such as flicker fusion and the minimum motion technique (MMT), are capable of detecting certain forms of abnormal color vision. We present evidence that the heterochromatic fusion nystagmus (HFN) luminance matching technique can discriminate among normal trichromats, protanopes, and deuteranomals. The HFN luminance matching technique has the advantage that it provides a positive indication of isoluminance (maximization of motion) as opposed to the MMT and flicker fusion methods, which indicate isoluminance by the minimization of motion and flicker, respectively. We tested 16 normal trichromats, 6 protanopes, and 4 deuteranomals with the HFN technique. Results indicate that HFN is a useful tool for examining color vision. Because the HFN stimulus elicits reflexive eye movements (optokinetic nystagmus) that follow the apparent motion of the stimulus, HFN luminance matching will be particularly useful in animal and infant research, where other color vision tests are difficult to implement.
Authors:
C A Collin; A Chaudhuri
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Perception & psychophysics     Volume:  60     ISSN:  0031-5117     ISO Abbreviation:  Percept Psychophys     Publication Date:  1998 Nov 
Date Detail:
Created Date:  1999-02-12     Completed Date:  1999-02-12     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0200445     Medline TA:  Percept Psychophys     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1337-43     Citation Subset:  IM    
Affiliation:
Psychology Department, McGill University, Montreal, Canada. charles@hebb.psych.mcgill.ca
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Color Perception Tests*
Color Vision Defects / diagnosis*
Contrast Sensitivity
Female
Humans
Male
Middle Aged
Motion Perception*
Nystagmus, Physiologic

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


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