Human electroencephalogram induces transient coherence in excitable spatiotemporal chaos

Human electroencephalogram induces transient coherence in excitable spatiotemporal chaos

A time series from a human electroencephalogram (EEG) is used as a local perturbation to a reaction-diffusion model with spatiotemporal chaos. For certain finite ranges of amplitude and frequency it is observed that the strongly irregular perturbations can induce transient coherence in the chaotic s...

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Veröffentlicht in:Physical review letters 2000-05, Vol.84 (19), p.4501-4504
Hauptverfasser: Baier, G, Leder, R S, Parmananda, P
Format: Artikel
Sprache:eng
Schlagworte:
Brain - physiology
Electroencephalography
Humans
Models, Biological
Nonlinear Dynamics
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Zusammenfassung:A time series from a human electroencephalogram (EEG) is used as a local perturbation to a reaction-diffusion model with spatiotemporal chaos. For certain finite ranges of amplitude and frequency it is observed that the strongly irregular perturbations can induce transient coherence in the chaotic system. This could be interpreted as "on-line" detection of an inherently correlated pattern embedded in the EEG.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.84.4501