EEG correlates of subcortical optokinetic nystagmus

Szilvia Gulyás, László Pálvölgyi, A. Kamondi, I. Szirmai

Research output: Article

4 Citations (Scopus)

Abstract

Objective: Our aim was to reveal the changes of concomitant scalp EEG activity during subcortical (stare-) optokinetic nystagmus (OKN). Methods: Stare-OKN of 10 subjects was evoked and recorded simultaneously with the EEG. Frequency distribution of OKN-beats was determined in each subject. Power changes of alpha and beta frequency bands of the EEG during OKN stimulation were statistically analysed. Results: During continuous subcortical OKN-the EEG alpha power decreased significantly while beta power increase was not significant. A significant transient alpha power enhancement around the onset of subcortical OKN-clusters was detected. Conclusions: We found significant changes in the parieto-occipital alpha EEG activity during subcortical OKN. The transient alpha synchronisation at the beginning of each OKN-cluster is a paradox phenomenon which might indicate increased visual attention. Significance: The present study is the first report investigating EEG changes related to subcortical OKN. Our findings suggest the involvement of cortical mechanisms in the generation of stare-OKN. The results might help in the elucidation of cortico-genicular mechanisms of ocular movements under physiological and pathological conditions.

Original languageEnglish
Pages (from-to)551-557
Number of pages7
JournalClinical Neurophysiology
Volume118
Issue number3
DOIs
Publication statusPublished - márc. 2007

Fingerprint

Optokinetic Nystagmus
Electroencephalography
Eye Movements
Scalp
Knee

ASJC Scopus subject areas

  • Clinical Neurology
  • Radiology Nuclear Medicine and imaging
  • Neurology
  • Sensory Systems
  • Physiology (medical)

Cite this

EEG correlates of subcortical optokinetic nystagmus. / Gulyás, Szilvia; Pálvölgyi, László; Kamondi, A.; Szirmai, I.

In: Clinical Neurophysiology, Vol. 118, No. 3, 03.2007, p. 551-557.

Research output: Article

Gulyás, Szilvia ; Pálvölgyi, László ; Kamondi, A. ; Szirmai, I. / EEG correlates of subcortical optokinetic nystagmus. In: Clinical Neurophysiology. 2007 ; Vol. 118, No. 3. pp. 551-557.
@article{22eff106b25746219137659e6da901e8,
title = "EEG correlates of subcortical optokinetic nystagmus",
abstract = "Objective: Our aim was to reveal the changes of concomitant scalp EEG activity during subcortical (stare-) optokinetic nystagmus (OKN). Methods: Stare-OKN of 10 subjects was evoked and recorded simultaneously with the EEG. Frequency distribution of OKN-beats was determined in each subject. Power changes of alpha and beta frequency bands of the EEG during OKN stimulation were statistically analysed. Results: During continuous subcortical OKN-the EEG alpha power decreased significantly while beta power increase was not significant. A significant transient alpha power enhancement around the onset of subcortical OKN-clusters was detected. Conclusions: We found significant changes in the parieto-occipital alpha EEG activity during subcortical OKN. The transient alpha synchronisation at the beginning of each OKN-cluster is a paradox phenomenon which might indicate increased visual attention. Significance: The present study is the first report investigating EEG changes related to subcortical OKN. Our findings suggest the involvement of cortical mechanisms in the generation of stare-OKN. The results might help in the elucidation of cortico-genicular mechanisms of ocular movements under physiological and pathological conditions.",
keywords = "Alpha synchronisation, Attention, EEG, Optokinetic nystagmus, Stare-nystagmus",
author = "Szilvia Guly{\'a}s and L{\'a}szl{\'o} P{\'a}lv{\"o}lgyi and A. Kamondi and I. Szirmai",
year = "2007",
month = "3",
doi = "10.1016/j.clinph.2006.10.020",
language = "English",
volume = "118",
pages = "551--557",
journal = "Clinical Neurophysiology",
issn = "1388-2457",
publisher = "Elsevier Ireland Ltd",
number = "3",

}

TY - JOUR

T1 - EEG correlates of subcortical optokinetic nystagmus

AU - Gulyás, Szilvia

AU - Pálvölgyi, László

AU - Kamondi, A.

AU - Szirmai, I.

PY - 2007/3

Y1 - 2007/3

N2 - Objective: Our aim was to reveal the changes of concomitant scalp EEG activity during subcortical (stare-) optokinetic nystagmus (OKN). Methods: Stare-OKN of 10 subjects was evoked and recorded simultaneously with the EEG. Frequency distribution of OKN-beats was determined in each subject. Power changes of alpha and beta frequency bands of the EEG during OKN stimulation were statistically analysed. Results: During continuous subcortical OKN-the EEG alpha power decreased significantly while beta power increase was not significant. A significant transient alpha power enhancement around the onset of subcortical OKN-clusters was detected. Conclusions: We found significant changes in the parieto-occipital alpha EEG activity during subcortical OKN. The transient alpha synchronisation at the beginning of each OKN-cluster is a paradox phenomenon which might indicate increased visual attention. Significance: The present study is the first report investigating EEG changes related to subcortical OKN. Our findings suggest the involvement of cortical mechanisms in the generation of stare-OKN. The results might help in the elucidation of cortico-genicular mechanisms of ocular movements under physiological and pathological conditions.

AB - Objective: Our aim was to reveal the changes of concomitant scalp EEG activity during subcortical (stare-) optokinetic nystagmus (OKN). Methods: Stare-OKN of 10 subjects was evoked and recorded simultaneously with the EEG. Frequency distribution of OKN-beats was determined in each subject. Power changes of alpha and beta frequency bands of the EEG during OKN stimulation were statistically analysed. Results: During continuous subcortical OKN-the EEG alpha power decreased significantly while beta power increase was not significant. A significant transient alpha power enhancement around the onset of subcortical OKN-clusters was detected. Conclusions: We found significant changes in the parieto-occipital alpha EEG activity during subcortical OKN. The transient alpha synchronisation at the beginning of each OKN-cluster is a paradox phenomenon which might indicate increased visual attention. Significance: The present study is the first report investigating EEG changes related to subcortical OKN. Our findings suggest the involvement of cortical mechanisms in the generation of stare-OKN. The results might help in the elucidation of cortico-genicular mechanisms of ocular movements under physiological and pathological conditions.

KW - Alpha synchronisation

KW - Attention

KW - EEG

KW - Optokinetic nystagmus

KW - Stare-nystagmus

UR - http://www.scopus.com/inward/record.url?scp=33846786562&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33846786562&partnerID=8YFLogxK

U2 - 10.1016/j.clinph.2006.10.020

DO - 10.1016/j.clinph.2006.10.020

M3 - Article

C2 - 17174149

AN - SCOPUS:33846786562

VL - 118

SP - 551

EP - 557

JO - Clinical Neurophysiology

JF - Clinical Neurophysiology

SN - 1388-2457

IS - 3

ER -