Localizing the sources of early gamma components in auditory oddball response

Author

Ademoglu, Ahmet ; Devrim, Muge ; Demiralp, Tamer ; Istefanopulos, Yorgo

Author_Institution

Inst. of Biomed. Eng., Bogazici Univ., Istanbul, Turkey

Volume

1

fYear

1999

fDate

1999

Abstract

Early gamma components of the auditory oddball responses were investigated using the wavelet transform (WT) and minimum variance spatial filtering (MVSF). WT was applied to single sweep oddball responses and the coefficients covering the range of the early gamma response (0-120 ms) were used to calculate the covariance matrix used in the MVSF. Different generators were found to correspond to different time-frequency components from the early gamma response

Keywords

auditory evoked potentials; electroencephalography; medical signal processing; spatial filters; wavelet transforms; auditory oddball response; coefficients; covariance matrix; early gamma components; minimum variance spatial filtering; single sweep oddball responses; sources; time-frequency components; wavelet transform; Biomedical engineering; Covariance matrix; Electroencephalography; Filtering; Physiology; Spline; Time frequency analysis; Wavelet analysis; Wavelet coefficients; Wavelet transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint

Conference_Location

Atlanta, GA

ISSN

1094-687X

Print_ISBN

0-7803-5674-8

Type

conf

DOI

10.1109/IEMBS.1999.802541

Filename

802541