Document Detail


Topography of the chromatic pattern-onset VEP.
MedLine Citation:
PMID:  12678619     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The chromatic pattern-onset VEP has been used successfully as a sensitive and objective technique to determine congenital and acquired color vision deficiency. It also has been applied to characterize development, maturation and aging of the chromatic visual pathways. Here we determine the topographic components of the full-field VEP using the multifocal technique. Recordings were made with the VERIS system that extracts topographic VEPs using a pseudorandom stimulus sequence. Chromatic pattern stimuli were presented in an onset-offset temporal sequence, with colors modulated along different axes in the MBDKL color space. Additional experiments were conducted to verify the S-cone axis for each observer and that our chromatic stimuli were close to isoluminant at different field locations. Our data show reliable and robust chromatic onset VEP responses for multiple retinal areas that conform to pattern-onset full-field VEP waveform characteristics. For stimuli with chromatic contributions, pattern-onsets produced reliable and consistent waveforms whereas for stimuli with large luminance contributions pattern-reversal stimuli were superior. Our method for recording chromatic multifocal pattern-onset VEPs holds promise for clinical application to detect and monitor early retinal and optic nerve changes related to aging and disease.
Authors:
Christina Gerth; Peter B Delahunt; Michael A Crognale; John S Werner
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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:  Journal of vision     Volume:  3     ISSN:  1534-7362     ISO Abbreviation:  J Vis     Publication Date:  2003  
Date Detail:
Created Date:  2003-04-07     Completed Date:  2003-05-19     Revised Date:  2014-09-22    
Medline Journal Info:
Nlm Unique ID:  101147197     Medline TA:  J Vis     Country:  United States    
Other Details:
Languages:  eng     Pagination:  171-82     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adult
Color Perception / physiology*
Evoked Potentials, Visual / physiology*
Humans
Pattern Recognition, Visual / physiology*
Visual Pathways / physiology
Grant Support
ID/Acronym/Agency:
AG04058/AG/NIA NIH HHS; AG1869-01/AG/NIA NIH HHS; EY12576/EY/NEI NIH HHS; R37 AG004058/AG/NIA NIH HHS; R37 AG004058-20/AG/NIA NIH HHS
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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