Within-session reproducibility of motion-onset VEPs: Effect of adaptation/habituation or fatigue on N2 peak amplitude and latency

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11150%2F07%3A00003551" target="_blank" >RIV/00216208:11150/07:00003551 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11150/07:00003681

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Within-session reproducibility of motion-onset VEPs: Effect of adaptation/habituation or fatigue on N2 peak amplitude and latency

Original language description

We explored the effect of repeated visual stimulation on motion-onset visual evoked potentials (M-VEPs) during 25 min recording sessions in 10 subjects. The aim of the experiment was to determine influence of global motion adaptation (without motion-aftereffect) on intra-individual variability of M-VEPs and to suggest an optimal recording design for clinical examination. In addition to well described middletime sensory adaptation, we also observed a long-time effect on motion specific N2 peak (155 ms).The N2 peak exhibited a strong relationship between its latency and inter-peak amplitude to the duration of recording in occipito-parietal derivations. In addition to the middle-term adaptation, N2 peak latency was prolonged by 10 ms and amplitude was attenuated by 30% with respect to the start of the experiment. An exponential model was employed to describe the dependency. The model can be used to reduce intra-individual variability during examination.

Czech name

Reprodukovatelnost

Czech description

Zkoumali jsme efekt pohybové stimulace na zrakové evokované potenciály v průběhu 25 min. vyšetření s cílem určit vliv adaptace na intraidividuální variabilitu zrakových, pohybem vyvolaných, evokovaných potenciálů (M-VEPs) a navrhnout optimální uspořádánívyšetření M-VEPs. Mimo dobře popsané adaptace v řádu sekund jsme popsali také adaptaci dlouhodobou (v řádu minut), která prodloužila o 10 ms latenci hlavního negativního vrcholu M-VEPs a současně zmenšila jeho amplitudu o 30%. Naměřené závislosti byly popsány pomocí exponenciálního modelu.Dal39 detaily viz http://www.lfhk.cuni.cz/elf/.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

FH - Neurology, neuro-surgery, nuero-sciences

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2007

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Documenta Ophthalmologica

ISSN

0012-4486

e-ISSN

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Volume of the periodical

115

Issue of the periodical within the volume

2

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

9

Pages from-to

95-103

UT code for WoS article

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EID of the result in the Scopus database

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