NDLI: Application of Empirical Mode Decomposition and Teager energy operator to EEG signals for mental task classification

Content Provider	IEEE Xplore Digital Library
Author	Kaleem, M.F. Sugavaneswaran, L. Guergachi, A. Krishnan, S.
Copyright Year	2010
Description	Author affiliation: Department of Electrical Engineering, Ryerson University, Toronto, Canada (Kaleem, M.F.; Sugavaneswaran, L.; Krishnan, S.) \|\| Ted Rogers School of Information Technology Management, Ryerson University, Canada (Guergachi, A.)
Abstract	This paper presents a novel method for mental task classification from EEG signals using Empirical Mode Decomposition and Teager energy operator techniques on EEG data. The efficacy of these techniques for non-stationary and non-linear data has already been demonstrated, which therefore lend themselves well to EEG signals, which are also non-stationary and non-linear in nature. The method described in this paper decomposed the EEG signals (6 EEG signals per task per subject, for a total of 5 tasks over multiple trials) into their constituent oscillatory modes, called intrinsic mode functions, and separated out the trend from the signal. Teager energy operator was used to calculate the average energy of both the detrended signal and the trend. The average energy was used to construct separate feature vectors with a small number of parameters for the detrended signal and the trend. Based on these parameters, one-versus-one classification of mental tasks was performed using Linear Discriminant Analysis. Using both feature vectors, an average correct classification rate of more than 85% was achieved, demonstrating the effectiveness of the method used. Furthermore, this method used all the intrinsic mode functions, as opposed to similar studies, demonstrating that the trend of the EEG signal also contains important discriminatory information.
Starting Page	4590
Ending Page	4593
File Size	313314
Page Count	4
File Format	PDF
ISBN	9781424441235
ISSN	1557170X
DOI	10.1109/IEMBS.2010.5626501
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-08-31
Publisher Place	Argentina
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electroencephalography Conferences Feature extraction Signal analysis USA Councils Indexes Vectors
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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