A study of power asymmetry ratio of single trial electroencephalogram during finger movement

Kok Meng Ong, Raveendran Paramesran

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This paper presents a study on Power Asymmetry Ratio of the Single Trial Electroencephalogram (EEG) during the preparation of left or right finger movement, or more precisely self-paced tapping. The objective is to predict which finger is going to be used to press a key in the computer keyboard. The change in EEG signal is more pronounced in the contralateral hemisphere. Therefore, the use of Power Band Asymmetry Ratio will enhance the identification of left or right finger tapping. Parametric spectral estimation, in this case autoregressive (AR) spectral analysis with Burg method is used to obtain the Power Spectral Density (PSD) from 8Hz to 30Hz. The proposed method selects the most critical homologous channels in the classification of the task. It is discovered that the homologous pair of CP3 and CP4 is the most important channel-pair that gave a classification accuracy of seventy five percent.

Original languageEnglish
Title of host publicationTENCON 2005 - 2005 IEEE Region 10 Conference
PublisherIEEE, Institute of Electrical and Electronics Engineers
ISBN (Print)0780393112, 9780780393110
Publication statusPublished - 2005
Externally publishedYes
EventIEEE Tencon (IEEE Region 10 Conference) 2005 - Crown Promenade Hotel, Melbourne, Australia
Duration: 21 Nov 200524 Nov 2005
https://ieeexplore.ieee.org/xpl/conhome/4084859/proceeding (Proceedings)

Publication series

NameIEEE Region 10 Annual International Conference, Proceedings/TENCON
ISSN (Print)2159-3442
ISSN (Electronic)2159-3450


ConferenceIEEE Tencon (IEEE Region 10 Conference) 2005
Abbreviated titleTENCON 2005
Internet address

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