Document Detail


Interindividual variation and additivity of the visual evoked potentials to the local checkerboard stimulation of the central and paracentral retina.
MedLine Citation:
PMID:  3811867     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Visually evoked cortical potentials to reversing checkerboard stimulation were recorded from normal subjects. Different locations of the central visual field of maximally 8 degrees radius were stimulated. Stimulation of various parts of the central visual field changed the waveform and the amplitude of the responses of different subjects very individually. This makes it impossible to make a universal decision, how large field or which part of the central field contributes most to pattern evoked cortical potentials. The responses to the upper half field stimulation showed greatest variation making the VEP recording worthless in detecting altitudinal visual field defects. The computed sum of the half field responses was of similar waveform and amplitude to the response to the full field stimulation. The good additivity of the responses applied to all parts of the central visual field tested.
Authors:
K A Airas
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Acta ophthalmologica     Volume:  64     ISSN:  0001-639X     ISO Abbreviation:  Acta Ophthalmol (Copenh)     Publication Date:  1986 Oct 
Date Detail:
Created Date:  1987-03-10     Completed Date:  1987-03-10     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0370347     Medline TA:  Acta Ophthalmol (Copenh)     Country:  DENMARK    
Other Details:
Languages:  eng     Pagination:  557-62     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Evoked Potentials, Visual*
Humans
Photic Stimulation*
Retina / physiology*
Species Specificity
Visual Fields

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


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