0043856 - ÚPT 2007 RIV DE eng J - Journal Article
Sochurková, D. - Brázdil, M. - Jurák, Pavel - Rektor, I.
P3 and ERD/ERS in a Visual Oddball Paradigm.
[P3 a ERD/ERS ve visual oddball paradigmatu.]
Journal of Psychophysiology. Roč. 20, č. 1 (2006), s. 32-39. ISSN 0269-8803. E-ISSN 2151-2124
R&D Projects: GA ČR(CZ) GA102/05/0402
Institutional research plan: CEZ:AV0Z20650511
Keywords : EEG * ERP * P3 * ERD/ERS * intracerebral
Subject RIV: FS - Medical Facilities ; Equipment
Impact factor: 1.634, year: 2006
DOI: https://doi.org/10.1027/0269-8803.20.1.32

The present study investigates intracerebrally the concurrent occurrence of event-related potentials (ERPs) and event-related desynchronization/synchronization phenomena (ERD/ERS) in subjects performing a visual oddball task. Results: Even though both P3 and ERD/ERS phenomena were observed in all investigated mesiotemporal regions, the most consistent findings were revealed in the hippocampus. A P3 component of ERP was repeatedly observed in the hippocampus after target stimuli. Significant changes of the oscillatory hippocampal activity were found: ERD in the alpha 1 and alpha 2 frequency bands. Evident, near-significant, changes were observed throughout hippocampus in the theta band. In response to the non-target stimuli, significant oscillatory changes were found in parahippocampal gyrus. Conclusions: The cognitive processing of visual information is simultaneously accompanied by several electrophysiological phenomena.

Práce prezentuje analýzu signálu EEG získaného z hloubkových elektrod. Analýza zahrnovala na událost vázané potenciály (ERP) a desynchronizaci/synchronizaci (ERD/ERS) při vizuálních podnětech.
Permanent Link: http://hdl.handle.net/11104/0136755