NDLI: Application of Tripolar Concentric Electrodes and Prefeature Selection Algorithm for Brain

Content Provider	IEEE Xplore Digital Library
Author	Besio, W.G. Hongbao Cao Peng Zhou
Copyright Year	2001
Abstract	For persons with severe disabilities, a brain-computer interface (BCI) may be a viable means of communication. Lapalacian electroencephalogram (EEG) has been shown to improve classification in EEG recognition. In this work, the effectiveness of signals from tripolar concentric electrodes and disc electrodes were compared for use as a BCI. Two sets of left/right hand motor imagery EEG signals were acquired. An autoregressive (AR) model was developed for feature extraction with a Mahalanobis distance based linear classifier for classification. An exhaust selection algorithm was employed to analyze three factors before feature extraction. The factors analyzed were 1) length of data in each trial to be used, 2) start position of data, and 3) the order of the AR model. The results showed that tripolar concentric electrodes generated significantly higher classification accuracy than disc electrodes.
Sponsorship	IEEE Engineering in Medicine and Biology Society
Page Count	4
File Size	289468
Starting Page	191
Ending Page	194
File Format	PDF
ISSN	15344320
Volume Number	16
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-04-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electroencephalography Laplace equations Biomedical engineering Brain modeling Feature extraction Biomedical electrodes Frequency Spline Algorithm design and analysis Parameter estimation tripolar electrode Brain–computer interface (BCI) electroencephalogram (EEG) classification Laplacian estimation parameter selection BCI EEG classification
Content Type	Text
Resource Type	Article
Subject	Neuroscience Rehabilitation Internal Medicine Biomedical Engineering Computer Science Applications

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