Feature extraction for single trial record of visual mismatch negativity by use of independent component analysis

T. Sugi, K. Kimura, S. Nishida, T. Maekawa, K. Ogata, Y. Goto, S. Tobimatsu, M. Nakamura

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

Signal averaging method is usually utilized for extracting the characteristics of event related potentials (ERPs). However, the amplitude and duration of ERPs are not constant for each stimulus due to the fluctuation of the subject's state, accordingly the appropriate selection of available data is crucial for realizing the accurate averaging. Independent component analysis (ICA) is one of powerful tool for signal processing, and some application to analyze the neurological signal processing such as electroencephalogram (EEG), evoked potentials (EPs), ERPs and so on were done. In this study, ICA was applied to process the visual mismatch negativity (V-MMN) for extracting the features and for selecting the appropriate single trial data for averaging. From the grand average waveform of V-MMN, signal separation matrix was determined by use of ICA. Characteristic parameters for evaluating single trial data were calculated from the decomposed components of ERPs. Then, the available single trial data was selected based on the value of evaluation parameter. Waveforms of selective averaging method and conventional averaging method were compared and the effectiveness of the proposed method was examined.

本文言語英語
ホスト出版物のタイトル2007 IEEE/ICME International Conference on Complex Medical Engineering, CME 2007
ページ1458-1462
ページ数5
DOI
出版ステータス出版済み - 2007
イベント2007 IEEE/ICME International Conference on Complex Medical Engineering, CME 2007 - Beijing, 中国
継続期間: 5 23 20075 27 2007

出版物シリーズ

名前2007 IEEE/ICME International Conference on Complex Medical Engineering, CME 2007

その他

その他2007 IEEE/ICME International Conference on Complex Medical Engineering, CME 2007
Country中国
CityBeijing
Period5/23/075/27/07

All Science Journal Classification (ASJC) codes

  • Biomedical Engineering
  • Medicine(all)

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