EEG spectral centroid amplitude and band power features: A correlation analysis

• Published in: Proceedings - 2014 5th IEEE Control and System Graduate Research Colloquium, ICSGRC 2014
• Main Author: 2-s2.0-84908616229
• Format: Conference paper
• Language: English
• Published: Institute of Electrical and Electronics Engineers Inc. 2014
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84908616229&doi=10.1109%2fICSGRC.2014.6908726&partnerID=40&md5=2983e0b76dc5d32d73703c2a35036af9

The paper elaborates on the correlation analysis between the proposed EEG sub-band spectral centroid amplitude with the established band power features. The study involves recording of resting EEG from 40 healthy university students. Initially, the EEG is pre-processed for noise removal and filtered into delta, theta, alpha and beta waves using band-pass filters. Next, the sub-band power spectral densities are estimated via Welch method. Subsequently, spectral centroid amplitude and band power features are then computed from the power spectral density of the respective sub-bands. Correlation analysis between the two features is performed for each scalp location to ascertain its relationship. Findings have revealed that the EEG sub-band spectral centroid amplitude is highly correlated with the band power features for all scalp locations. © 2014 IEEE.