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Research article - Peer-reviewed, 2005

Analysis of phase shifts in clinical EEG evoked by ECT

Gu Yuqiao, Liljenström Hans, Wahlund Björn, von Rosen Dietrich

Abstract

We propose a new strategy for studying the phase shifts of electroencephalography (EEG) after electroconvulsive therapy (ECT) of patients with major depression. We divide each ECT EEGtime series into four phases and calculate the power spectrum and coherence of left and right prefrontal EEGs for each phase. Previously, we have qualitatively demonstrated certain ECT EEGdynamical patterns by using a neo-cortical neural network model. Now we quantitatively analyze the dynamical phase shifts of the ECT EEGdata. Our results are suggestive for a deeper understanding of the ECT EEGpatterns and for building more realistic cortical models

Keywords

Electroconvulsive therapy; EEGfreque ncy bands; Neurodynamics; Power spectrum; Phase shift

Published in

Neurocomputing
2005, Volume: 65-66, pages: 475-483
Publisher: Elsevier