Time-frequency analysis of electroencephalogram series. II. Gabor and wavelet transforms

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In this paper we compare two methods, based on the Gabor and wavelet transforms, to quantify and visualize the time evolution of frequency contents of electroencephalogram (EEG) time series. We found an optimal correlation between EEG visual inspection and the proposed methods in the characterizatio...

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Autores principales: Blanco, S., D'Attellis, C.E., Isaacson, S.I., Rosso, O.A., Sirae, R.O.
Formato: Artículo publishedVersion
Publicado: 1996
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_1063651X_v54_n6_p6661_Blanco
http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_1063651X_v54_n6_p6661_Blanco_oai
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Repositorio Digital de la Universidad de Buenos Aires (UBA) de Universidad de Buenos Aires
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spelling I28-R145-paper_1063651X_v54_n6_p6661_Blanco_oai2020-10-19 Blanco, S. D'Attellis, C.E. Isaacson, S.I. Rosso, O.A. Sirae, R.O. 1996 In this paper we compare two methods, based on the Gabor and wavelet transforms, to quantify and visualize the time evolution of frequency contents of electroencephalogram (EEG) time series. We found an optimal correlation between EEG visual inspection and the proposed methods in the characterization of the frequency and energy content of characteristic activity during an epileptic seizure. The quasimonofrequency behavior observed in the epileptic EEG series, in a previous work using a Gabor analysis [J. Inst. Electr. Eng. 93, 429 (1946)], is confirmed with the analysis using a wavelet. Moreover, the method based on the wavelet transform allows us to build a detector of epileptic events. Both methods are exemplified with EEG series obtained with depth electrodes in refractory epileptic patients. © 1996 The American Physical Society. Fil:Blanco, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:D'Attellis, C.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. application/pdf http://hdl.handle.net/20.500.12110/paper_1063651X_v54_n6_p6661_Blanco info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar Phys Rev E. 1996;54(6):6661-6672 Time-frequency analysis of electroencephalogram series. II. Gabor and wavelet transforms info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_1063651X_v54_n6_p6661_Blanco_oai
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-145
collection Repositorio Digital de la Universidad de Buenos Aires (UBA)
description In this paper we compare two methods, based on the Gabor and wavelet transforms, to quantify and visualize the time evolution of frequency contents of electroencephalogram (EEG) time series. We found an optimal correlation between EEG visual inspection and the proposed methods in the characterization of the frequency and energy content of characteristic activity during an epileptic seizure. The quasimonofrequency behavior observed in the epileptic EEG series, in a previous work using a Gabor analysis [J. Inst. Electr. Eng. 93, 429 (1946)], is confirmed with the analysis using a wavelet. Moreover, the method based on the wavelet transform allows us to build a detector of epileptic events. Both methods are exemplified with EEG series obtained with depth electrodes in refractory epileptic patients. © 1996 The American Physical Society.
format Artículo
Artículo
publishedVersion
author Blanco, S.
D'Attellis, C.E.
Isaacson, S.I.
Rosso, O.A.
Sirae, R.O.
spellingShingle Blanco, S.
D'Attellis, C.E.
Isaacson, S.I.
Rosso, O.A.
Sirae, R.O.
Time-frequency analysis of electroencephalogram series. II. Gabor and wavelet transforms
author_facet Blanco, S.
D'Attellis, C.E.
Isaacson, S.I.
Rosso, O.A.
Sirae, R.O.
author_sort Blanco, S.
title Time-frequency analysis of electroencephalogram series. II. Gabor and wavelet transforms
title_short Time-frequency analysis of electroencephalogram series. II. Gabor and wavelet transforms
title_full Time-frequency analysis of electroencephalogram series. II. Gabor and wavelet transforms
title_fullStr Time-frequency analysis of electroencephalogram series. II. Gabor and wavelet transforms
title_full_unstemmed Time-frequency analysis of electroencephalogram series. II. Gabor and wavelet transforms
title_sort time-frequency analysis of electroencephalogram series. ii. gabor and wavelet transforms
publishDate 1996
url http://hdl.handle.net/20.500.12110/paper_1063651X_v54_n6_p6661_Blanco
http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_1063651X_v54_n6_p6661_Blanco_oai
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AT isaacsonsi timefrequencyanalysisofelectroencephalogramseriesiigaborandwavelettransforms
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AT siraero timefrequencyanalysisofelectroencephalogramseriesiigaborandwavelettransforms
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