0385219 - ÚPT 2013 RIV SG eng J - Journal Article
Klimeš, Petr - Janeček, Jiří - Jurák, Pavel - Halámek, Josef - Chládek, Jan - Brázdil, M.
Intracranial EEG Connectivity Analysis and Result Imaging.
International Journal of Bioscience, Biochemistry and Bioinformatics. Roč. 2, č. 4 (2012), s. 275-279. ISSN 2010-3638
Institutional support: RVO:68081731
Keywords : Connectivity * Correlation * Intracranial EEG * Signal Processing
Subject RIV: JA - Electronics ; Optoelectronics, Electrical Engineering

We are presenting a method for analyzing signals from deep brain structures, measured by intracranial electrodes, to reveal connectivity in the human brain. Time evaluation of the correlation technique is applied for every available contact pair to determine dependencies between EEG channels. This produces a large amount of results that are not easy to interpret. Here we introduce a procedure for complex and comprehensive result imaging which helps us focus on significant parts of the results. Changes of power are examined along with correlation changes. Results are demonstrated for one subject. Five channels were selected from the hippocampus for detailed analysis. How the changes of correlation are connected to changes of power is shown in addition to the coupling between channels.
Permanent Link: http://hdl.handle.net/11104/0214551