Quian Quiroga, R.; Rosso, O. A.; Başar, E.; Schürmann, M. Wavelet entropy in event-related potentials: a new method shows ordering of EEG oscillations. (English) Zbl 1161.92325 Biol. Cybern. 84, No. 4, 291-299 (2001). Summary: We show the application of a measure of entropy defined from the wavelet transform, namely the wavelet entropy (WS), to the study of event-related potentials (ERPs). The WS was computed for ERPs recorded from nine healthy subjects with three different types of stimuli, among them target stimuli in a cognitive task. A significant decrease of entropy was correlated with the responses to target stimuli (P300), thus showing that these responses correspond to a more “ordered” state than the spontaneous EEG. Furthermore, we propose the WS as a quantitative measure for such transitions between EEG (“disordered state”) and ERP (“ordered state”). Cited in 9 Documents MSC: 92C20 Neural biology 92C55 Biomedical imaging and signal processing PDFBibTeX XMLCite \textit{R. Quian Quiroga} et al., Biol. Cybern. 84, No. 4, 291--299 (2001; Zbl 1161.92325) Full Text: DOI