Wavelet entropy in event-related potentials: A new method shows ordering of EEG oscillations

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 sti...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Quian Quiroga, R., Rosso, O.A., Başar, E., Schürmann, M.
Formato: JOUR
Materias:
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
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03401200_v84_n4_p291_QuianQuiroga
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario: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").

Ejemplares similares