Role of latency jittering correction in motion-onset VEP amplitude decay during prolonged visual stimulation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11150%2F12%3A10123192" target="_blank" >RIV/00216208:11150/12:10123192 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.springerlink.com/content/y142704310w67707/fulltext.pdf" target="_blank" >http://www.springerlink.com/content/y142704310w67707/fulltext.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10633-012-9321-6" target="_blank" >10.1007/s10633-012-9321-6</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Role of latency jittering correction in motion-onset VEP amplitude decay during prolonged visual stimulation

Popis výsledku v původním jazyce

Visual evoked potentials to motion-onset stimulation (M-VEPs) gradually attenuate in amplitude during examination. The observed decline in averaged responses can be caused by decreases in single response magnitudes and/or increased variability in a response delays, i.e., latency jittering. To illuminate the origins of the suppression of M-VEPs during stimuli repetition we used correlation technique to estimate an upper bound of possible latency jittering of single sweeps and we evaluated the effect of its correction on the amplitudes of three M-VEP dominant peaks P1, N2 and P3. During prolonged visual motion stimulation, the variability of corrective latency shifts in the occipital region increased (r = 0.35 : 0.44) and the number of single responses corresponding to the average curve declined in occipital and parietal derivations (r = -0.48 : -0.62). While the P1 peak amplitude did not exhibit any time-specific behaviour, the N2 amplitude exhibited a significant decay of 29.4 % that w

Název v anglickém jazyce

Role of latency jittering correction in motion-onset VEP amplitude decay during prolonged visual stimulation

Popis výsledku anglicky

Visual evoked potentials to motion-onset stimulation (M-VEPs) gradually attenuate in amplitude during examination. The observed decline in averaged responses can be caused by decreases in single response magnitudes and/or increased variability in a response delays, i.e., latency jittering. To illuminate the origins of the suppression of M-VEPs during stimuli repetition we used correlation technique to estimate an upper bound of possible latency jittering of single sweeps and we evaluated the effect of its correction on the amplitudes of three M-VEP dominant peaks P1, N2 and P3. During prolonged visual motion stimulation, the variability of corrective latency shifts in the occipital region increased (r = 0.35 : 0.44) and the number of single responses corresponding to the average curve declined in occipital and parietal derivations (r = -0.48 : -0.62). While the P1 peak amplitude did not exhibit any time-specific behaviour, the N2 amplitude exhibited a significant decay of 29.4 % that w

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

FH - Neurologie, neurochirurgie, neurovědy

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Documenta Ophthalmologica

ISSN

0012-4486

e-ISSN

—

Svazek periodika

124

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

13

Strana od-do

211-223

Kód UT WoS článku

000304397800004

EID výsledku v databázi Scopus

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