RESEARCH ARTICLE


Study on Bayes Discriminant Analysis of EEG Data



Yuan Shi*, DanDan He, Fang Qin
School of Soft Engineering, Dalian Institute of Science and Technology, Dalian, Liaoning, 116028, P.R. China


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Creative Commons License
© Shi et al.; Licensee Bentham Open.

open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.

* Address correspondence to this author at the School of Soft Engineering, aLian Institute of Science and Technology, Dalian, 116028, P.R. China; Tel: 13664247491; Fax: 0411-86245024; E-mail: 20088041@qq.com


Abstract

Objective:

In this paper, we have done Bayes Discriminant analysis to EEG data of experiment objects which are recorded impersonally come up with a relatively accurate method used in feature extraction and classification decisions.

Methods:

In accordance with the strength of α wave, the head electrodes are divided into four species. In use of part of 21 electrodes EEG data of 63 people, we have done Bayes Discriminant analysis to EEG data of six objects. Results in use of part of EEG data of 63 people, we have done Bayes Discriminant analysis, the electrode classification accuracy rates is 64.4%.

Conclusions:

Bayes Discriminant has higher prediction accuracy, EEG features (mainly α wave) extract more accurate. Bayes Discriminant would be better applied to the feature extraction and classification decisions of EEG data.

Keywords: Electroencephalogram, Bayes Discriminant, α rhythm, electrode classification, feature extraction.