Multifocal visual evoked potentials-a method study of responses from small sectors of the visual field.
(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)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/142340
- author
- Bengtsson Lindberg, Marie LU ; Andréasson, Sten LU and Andersson, Gert LU
- organization
- publishing date
- 2005
- 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
- pmid:15998602
- 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
- 2016-04-01 11:57:46
- date last changed
- 2022-01-26 20:49:28
@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}}, keywords = {{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}}, doi = {{10.1016/j.clinph.2005.04.009}}, volume = {{116}}, year = {{2005}}, }