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Abstract:

In this work 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). 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").

Registro:

Documento: Artículo
Título:Wavelet entropy in event-related potentials: A new method shows ordering of EEG oscillations
Autor:Quian Quiroga, R.; Rosso, O.A.; Başar, E.; Schürmann, M.
Filiación:Institute of Physiology, Medical University of Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany
NIC, Forschungszentrum Jülich, 52425 Jülich, Germany
Instituto de Calculo, Universidad de Buenos Aires, Pab II, Ciudad Universitaria, 1428 Buenos Aires, Argentina
TÜBITAK Brain Dynam. Res. Unit, Ankara, Turkey
Palabras clave:adult; article; biological model; electroencephalography; entropy; event related potential; female; human; male; periodicity; physiology; Adult; Electroencephalography; Entropy; Event-Related Potentials, P300; Female; Humans; Male; Models, Neurological; Periodicity
Año:2001
Volumen:84
Número:4
Página de inicio:291
Página de fin:299
DOI: http://dx.doi.org/10.1007/s004220000212
Título revista:Biological Cybernetics
Título revista abreviado:Biol. Cybern.
ISSN:03401200
CODEN:BICYA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03401200_v84_n4_p291_QuianQuiroga

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Citas:

---------- APA ----------
Quian Quiroga, R., Rosso, O.A., Başar, E. & Schürmann, M. (2001) . Wavelet entropy in event-related potentials: A new method shows ordering of EEG oscillations. Biological Cybernetics, 84(4), 291-299.
http://dx.doi.org/10.1007/s004220000212
---------- CHICAGO ----------
Quian Quiroga, R., Rosso, O.A., Başar, E., Schürmann, M. "Wavelet entropy in event-related potentials: A new method shows ordering of EEG oscillations" . Biological Cybernetics 84, no. 4 (2001) : 291-299.
http://dx.doi.org/10.1007/s004220000212
---------- MLA ----------
Quian Quiroga, R., Rosso, O.A., Başar, E., Schürmann, M. "Wavelet entropy in event-related potentials: A new method shows ordering of EEG oscillations" . Biological Cybernetics, vol. 84, no. 4, 2001, pp. 291-299.
http://dx.doi.org/10.1007/s004220000212
---------- VANCOUVER ----------
Quian Quiroga, R., Rosso, O.A., Başar, E., Schürmann, M. Wavelet entropy in event-related potentials: A new method shows ordering of EEG oscillations. Biol. Cybern. 2001;84(4):291-299.
http://dx.doi.org/10.1007/s004220000212