Processing of EEG Signals for Study of Coupling in Brain Regions for Eyes Open and Eyes Closed Conditions

Bose, Deboshree and Ajeesh, TP and Dutt, Narayana D and Tripathi, Shikha (2014) Processing of EEG Signals for Study of Coupling in Brain Regions for Eyes Open and Eyes Closed Conditions. In: 3rd International Conference on Advances in Computing, Communications and Informatics (ICACCI), SEP 24-27, 2014, New Delhi, INDIA, pp. 327-331.

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Abstract

This paper deals with processing the EEG signals obtained from 16 spatially arranged electrodes to measure coupling or synchrony between the frontal, parietal, occipital and temporal lobes of the cerebrum under the eyes open and eyes closed conditions. This synchrony was measured using magnitude squared coherence, Short Time Fourier Transform and wavelet based coherences. We found a pattern in the time-frequency coherence as we moved from the nasion to the inion of the subject's head. The coherence pattern obtained from the wavelet approach was found to be far more capable of picking up peaks in coherence with respect to frequency when compared to the regular Fourier based coherence. We detected high synchrony between frontal polar electrodes that is missing in coherence plots between other electrode pairs. The study has potential applications in healthcare.

Item Type:	Conference Proceedings
Publisher:	IEEE
Additional Information:	Copy right for this article belongs to the IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA
Keywords:	EEG; coherence; coupling; wavelet transforms
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	11 Sep 2015 05:32
Last Modified:	11 Sep 2015 05:32
URI:	http://eprints.iisc.ac.in/id/eprint/52346

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