Journal
INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS
Volume 17, Issue 10, Pages 3729-3733Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0218127407019652
Keywords
permutation entropy; complexity; synchronization; EEG; epilepsy; seizure prediction
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We investigate the applicability of the permutation entropy H and a synchronization index gamma that is based on the changing tendency of temporal permutation entropies to analyze noisy time series from nonstationary dynamical systems with poorly understood properties. Using model systems, we first study the interdependencies of parameters involved in the calculation of both measures. Having identified appropriate parameter settings we then analyze long-lasting EEG time series recorded from an epilepsy patient. Our findings indicate that gamma could be of interest for studies on the predictability of epileptic seizures.
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