Open Access

Analysis of Synchronization Phenomena in Broadband Signals with Nonlinear Excitable Media

EURASIP Journal on Advances in Signal Processing20092009:582412

https://doi.org/10.1155/2009/582412

Received: 23 September 2008

Accepted: 18 August 2009

Published: 13 October 2009

Abstract

We apply the method of frequency-selective excitation waves in excitable media to characterize synchronization phenomena in interacting complex dynamical systems by measuring coincidence rates of induced excitations. We relax the frequency-selectivity of excitable media and demonstrate two applications of the method to signals with broadband spectra. Findings obtained from analyzing time series of coupled chaotic oscillators as well as electroencephalographic (EEG) recordings from an epilepsy patient indicate that this method can provide an alternative and complementary way to estimate the degree of phase synchronization in noisy signals.

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Authors’ Affiliations

(1)
Department of Epileptology, University of Bonn
(2)
Helmholtz-Institute for Radiation and Nuclear Physics, University of Bonn
(3)
Interdisciplinary Center for Complex Systems, University of Bonn

Copyright

© Anton Chernihovskyi et al. 2009

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.