Characterization of the dynamical evolution of electroencephalogram time series.

O. A. ROSSO; S. BLANCO; A. FIGLIOLA

Instabilities and Nonequilibrium Structures VII & VIII.

Kluwer Academic Publishers

Lugar: Dordrecht, Netherlands; Año: 2004; p. 333 - 338

The entropy defined from the Wavelet transform is a measure of the order/disorder degree presents in a time series, and in consequence this entropy evaluates over EEG time series gives information about changes in the underlying dynamical process. The Wavelet Entropy (WS) results independent of the signal energy and it is parameter free and independent of the stationarity of the time series. In this work we analyzed the results of the time evolution of WS performed over epileptic EEG records provide by depth electrodes.