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Multifocal visual evoked potentials-a method study of responses from small sectors of the visual field.

Bengtsson Lindberg, Marie LU ; Andréasson, Sten LU and Andersson, Gert LU (2005) In Clinical Neurophysiology 116(8). p.1975-1983
Abstract
Objective: A method study of the mfVEP technique to establish a standardised way to identify stable response components from small areas in all parts of the visual field and a test-retest reliability study. Methods: MfVEP was recorded from 26 healthy volunteers. Results: Two response components could be clearly identified. The latencies corresponded to those of the traditional VEP response (N75 and P100). The visual field was divided into 12 sectors. A characteristic pattern was obtained. Component I was mainly negative in the upper sectors and positive in the lower sectors. Component II was positive in the upper sectors and negative in the lower ones. Most of the sectors with missing responses were the ones adjacent to the horizontal... (More)
Objective: A method study of the mfVEP technique to establish a standardised way to identify stable response components from small areas in all parts of the visual field and a test-retest reliability study. Methods: MfVEP was recorded from 26 healthy volunteers. Results: Two response components could be clearly identified. The latencies corresponded to those of the traditional VEP response (N75 and P100). The visual field was divided into 12 sectors. A characteristic pattern was obtained. Component I was mainly negative in the upper sectors and positive in the lower sectors. Component II was positive in the upper sectors and negative in the lower ones. Most of the sectors with missing responses were the ones adjacent to the horizontal meridian, corresponding to the phase reversals. In a test-retest reliability study, the amplitude and latency measurements of the second test were plotted against those of the first test. Correlation coefficients between 0.84 and 0.93 were obtained. Conclusions: The mfVEP allows a reliable quantification of two response components from small parts of the visual field. Significance: This paper suggests that mfVEP could be a valuable supplement to the traditional VEP for exploring restricted parts of the visual pathways. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
reproducibility, normal responses, VEP, multifocal visual evoked potential (MtVEP)
in
Clinical Neurophysiology
volume
116
issue
8
pages
1975 - 1983
publisher
Elsevier
external identifiers
  • wos:000231330700028
  • pmid:15998602
  • scopus:22844438868
ISSN
1872-8952
DOI
10.1016/j.clinph.2005.04.009
language
English
LU publication?
yes
id
b6538931-6b02-46a6-b87d-18ceb67ef34b (old id 142340)
alternative location
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=15998602&dopt=Abstract
date added to LUP
2007-07-13 11:42:43
date last changed
2017-04-16 03:31:17
@article{b6538931-6b02-46a6-b87d-18ceb67ef34b,
  abstract     = {Objective: A method study of the mfVEP technique to establish a standardised way to identify stable response components from small areas in all parts of the visual field and a test-retest reliability study. Methods: MfVEP was recorded from 26 healthy volunteers. Results: Two response components could be clearly identified. The latencies corresponded to those of the traditional VEP response (N75 and P100). The visual field was divided into 12 sectors. A characteristic pattern was obtained. Component I was mainly negative in the upper sectors and positive in the lower sectors. Component II was positive in the upper sectors and negative in the lower ones. Most of the sectors with missing responses were the ones adjacent to the horizontal meridian, corresponding to the phase reversals. In a test-retest reliability study, the amplitude and latency measurements of the second test were plotted against those of the first test. Correlation coefficients between 0.84 and 0.93 were obtained. Conclusions: The mfVEP allows a reliable quantification of two response components from small parts of the visual field. Significance: This paper suggests that mfVEP could be a valuable supplement to the traditional VEP for exploring restricted parts of the visual pathways.},
  author       = {Bengtsson Lindberg, Marie and Andréasson, Sten and Andersson, Gert},
  issn         = {1872-8952},
  keyword      = {reproducibility,normal responses,VEP,multifocal visual evoked potential (MtVEP)},
  language     = {eng},
  number       = {8},
  pages        = {1975--1983},
  publisher    = {Elsevier},
  series       = {Clinical Neurophysiology},
  title        = {Multifocal visual evoked potentials-a method study of responses from small sectors of the visual field.},
  url          = {http://dx.doi.org/10.1016/j.clinph.2005.04.009},
  volume       = {116},
  year         = {2005},
}