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Updated: Jul 14, 2026

Generation of Local CA1 γ Oscillations by Tetanic Stimulation
Published on: August 14, 2015
Dynamics of spontaneous transitions between global brain states
Junji Ito1, Andrey R Nikolaev, Cees van Leeuwen
1Laboratory for Perceptual Dynamics, Brain Science Institute, RIKEN, Wako-shi, Saitama, Japan. j-ito@brain.riken.jp
Abstract:
Phase patterns of human scalp alpha EEG activity show spontaneous transitions between different globally phase-synchronized states. We studied the dynamical properties of these transitions using the method of symbolic dynamics. We found greater predictability (deterministicity) and heterogeneity in the dynamics than what was expected from corresponding surrogate series in which linear correlations are retained. A possible explanation of these observations within the framework of chaotic itinerancy is discussed.
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