Feature Extraction of EEG Signals Using Power Spectral Entropy
- 1 May 2008
- conference paper
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 2, 435-439
- https://doi.org/10.1109/bmei.2008.254
Abstract
Brain-Computer Interfaces (BCI) use electroencephalography (EEG) signals recorded from the scalp to create a new communication channel between the brain and an output device by bypassing conventional motor output pathways of nerves and muscles. One of the most important components of BCI is feature extraction of EEG signals. How to rapidly and reliably extract EEG features for expressing the brain states of different mental tasks is the crucial element for exact classification. This paper presents an approach that performs EEG feature extraction during imagined right and left hand movements by using power spectral entropy (PSE). It acquires good classification results with the time-variable linear classifier. The maximal accuracy achieves 90%. The results show that the PSE is a sensitive parameter for EEG of imaginary hand movements. The method is simple and quick and it provides a promising method for on-line BCI system.Keywords
This publication has 9 references indexed in Scilit:
- A time-series prediction approach for feature extraction in a brain-computer interfaceIEEE Transactions on Neural Systems and Rehabilitation Engineering, 2005
- BCI Competition 2003—Data Sets Ib and IIb: Feature Extraction From Event-Related Brain Potentials With the Continuous Wavelet Transform and the$hboxtt t$-Value ScalogramIEEE Transactions on Biomedical Engineering, 2004
- Using adaptive autoregressive parameters for a brain-computer-interface experimentPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Event-related dynamics of cortical rhythms: frequency-specific features and functional correlatesInternational Journal of Psychophysiology, 2001
- Automatic differentiation of multichannel EEG signalsIEEE Transactions on Biomedical Engineering, 2001
- Optimal spatial filtering of single trial EEG during imagined hand movementIEEE Transactions on Rehabilitation Engineering, 2000
- Current trends in Graz brain-computer interface (BCI) researchIEEE Transactions on Rehabilitation Engineering, 2000
- Separability of EEG signals recorded during right and left motor imagery using adaptive autoregressive parametersIEEE Transactions on Rehabilitation Engineering, 1998
- EEG-based discrimination between imagination of right and left hand movementElectroencephalography and Clinical Neurophysiology, 1997