Searching for hidden information with Gabor Transform in generalized tonic-clonic seizures

The analysis of generalized tonic clonic seizures is usually difficult with scalp EEG due to muscle artifact. We applied Gabor Transform to evaluate 20 seizures from 8 consecutive patients admitted for video-EEG monitoring. We studied the relative intensity ratios of alpha, theta and delta bands ove...

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Autores principales: Quian Quiroga, R., Blanco, S., Rosso, O.A., Garcia, H., Rabinowicz, A.
Formato: JOUR
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Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00134694_v103_n4_p434_QuianQuiroga
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spelling todo:paper_00134694_v103_n4_p434_QuianQuiroga2023-10-03T14:11:04Z Searching for hidden information with Gabor Transform in generalized tonic-clonic seizures Quian Quiroga, R. Blanco, S. Rosso, O.A. Garcia, H. Rabinowicz, A. Fourier Gabor Tonic-clonic seizures adult article child clinical article data analysis electroencephalogram female grand mal seizure human information processing male pathophysiology priority journal tonic clonic seizure Adult Alpha Rhythm Child Delta Rhythm Electroencephalography Epilepsy, Tonic-Clonic Female Fourier Analysis Humans Male Middle Aged Theta Rhythm Time Factors The analysis of generalized tonic clonic seizures is usually difficult with scalp EEG due to muscle artifact. We applied Gabor Transform to evaluate 20 seizures from 8 consecutive patients admitted for video-EEG monitoring. We studied the relative intensity ratios of alpha, theta and delta bands over time. In 14/20 events we found a significant decremental activity in the delta band at the onset of the seizure indicating that this is dominated by theta and alpha hands. We conclude that GT is a useful auxiliary tool in the analysis of ictal activity that sheds light on the underlying pathophysiological mechanisms. Fil:Quian Quiroga, R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Blanco, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00134694_v103_n4_p434_QuianQuiroga
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Fourier
Gabor
Tonic-clonic seizures
adult
article
child
clinical article
data analysis
electroencephalogram
female
grand mal seizure
human
information processing
male
pathophysiology
priority journal
tonic clonic seizure
Adult
Alpha Rhythm
Child
Delta Rhythm
Electroencephalography
Epilepsy, Tonic-Clonic
Female
Fourier Analysis
Humans
Male
Middle Aged
Theta Rhythm
Time Factors
spellingShingle Fourier
Gabor
Tonic-clonic seizures
adult
article
child
clinical article
data analysis
electroencephalogram
female
grand mal seizure
human
information processing
male
pathophysiology
priority journal
tonic clonic seizure
Adult
Alpha Rhythm
Child
Delta Rhythm
Electroencephalography
Epilepsy, Tonic-Clonic
Female
Fourier Analysis
Humans
Male
Middle Aged
Theta Rhythm
Time Factors
Quian Quiroga, R.
Blanco, S.
Rosso, O.A.
Garcia, H.
Rabinowicz, A.
Searching for hidden information with Gabor Transform in generalized tonic-clonic seizures
topic_facet Fourier
Gabor
Tonic-clonic seizures
adult
article
child
clinical article
data analysis
electroencephalogram
female
grand mal seizure
human
information processing
male
pathophysiology
priority journal
tonic clonic seizure
Adult
Alpha Rhythm
Child
Delta Rhythm
Electroencephalography
Epilepsy, Tonic-Clonic
Female
Fourier Analysis
Humans
Male
Middle Aged
Theta Rhythm
Time Factors
description The analysis of generalized tonic clonic seizures is usually difficult with scalp EEG due to muscle artifact. We applied Gabor Transform to evaluate 20 seizures from 8 consecutive patients admitted for video-EEG monitoring. We studied the relative intensity ratios of alpha, theta and delta bands over time. In 14/20 events we found a significant decremental activity in the delta band at the onset of the seizure indicating that this is dominated by theta and alpha hands. We conclude that GT is a useful auxiliary tool in the analysis of ictal activity that sheds light on the underlying pathophysiological mechanisms.
format JOUR
author Quian Quiroga, R.
Blanco, S.
Rosso, O.A.
Garcia, H.
Rabinowicz, A.
author_facet Quian Quiroga, R.
Blanco, S.
Rosso, O.A.
Garcia, H.
Rabinowicz, A.
author_sort Quian Quiroga, R.
title Searching for hidden information with Gabor Transform in generalized tonic-clonic seizures
title_short Searching for hidden information with Gabor Transform in generalized tonic-clonic seizures
title_full Searching for hidden information with Gabor Transform in generalized tonic-clonic seizures
title_fullStr Searching for hidden information with Gabor Transform in generalized tonic-clonic seizures
title_full_unstemmed Searching for hidden information with Gabor Transform in generalized tonic-clonic seizures
title_sort searching for hidden information with gabor transform in generalized tonic-clonic seizures
url http://hdl.handle.net/20.500.12110/paper_00134694_v103_n4_p434_QuianQuiroga
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