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2013 Fiscal Year Final Research Report

Silent speech BCI

Research Project

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Project/Area Number 23500151
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Media informatics/Database
Research InstitutionKyushu Institute of Technology

Principal Investigator

YAMAZAKI TOSHIMASA  九州工業大学, 大学院情報工学研究院, 教授 (50392163)

Co-Investigator(Kenkyū-buntansha) INOUE Katsuhiro  九州工業大学, 大学院・情報工学研究院, 教授 (00150516)
MAEDA Matoko  九州工業大学, 大学院・情報工学研究院, 助教 (00274556)
Project Period (FY) 2011 – 2013
Keywordsサイレントスピーチ / BCI / 脳波 / BP / ICA / ECDL / Broca野 / HMM
Research Abstract

A new silent speech BCI was proposed using both EEGs scalp-recorded and speech signals measured during overtly and covertly speaking "janken" and "season" in Japanese. The framework consists of two phases. The first phase specifies a Kalman filter (KF) using both spectrograms of the speech signals and independent components of the EEGs recorded during the actual speech task. In case of the "season" task, speech signals were transformed into vowel and/or consonant sequences, and these relations were learned by HMM. The second one predicts spectrograms for the silent "janken" and "season" by the KF with the EEGs during the silent speech tasks. For the silent "season", the predicted spectrograms were inputted to the HMM. The present results demonstrate that when using the Kalman filter with the ICs whose dipole solutions are localized to mainly the Broca's area, the silent "jankens" are all correctly predicted for ten healthy subjects, and the "spring"- and "summer"-HMMs worked well.

  • Research Products

    (10 results)

All 2013 2012

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (6 results) (of which Invited: 1 results) Book (1 results)

  • [Journal Article] Spatiotemporal human brain activities on recalling names of body parts2013

    • Author(s)
      T.Yamanoi, Y.Tanaka, M.Ohtsuki, S.Ohnishi, T.Yamazaki and M.Sugeno
    • Journal Title

      Journal of Advanced Computational Intelligence and Intelligent Informatics

      Volume: Vol.17, No.3 Pages: 386-391

    • Peer Reviewed
  • [Journal Article] EEG pattern recognition based on frequency analysis during imaging and gazing tasks2013

    • Author(s)
      K.Kinoshita, T.Yamaguchi, H.Uno, Y.Nishihara, M.Maeda and K.Inoue
    • Journal Title

      Proc. of the 43rd ISCIE International Symposium on Stochastic Systems Theory and Its Applications

      Pages: 338-343

    • Peer Reviewed
  • [Journal Article] Morphological redundant Wavelet analysis of vocal signal2012

    • Author(s)
      T.Yamaguchi, K.Seita, M.Fujio and K.Inoue
    • Journal Title

      ICIC Express Letter

      Volume: Vol.6, No.4 Pages: 983-989

    • Peer Reviewed
  • [Presentation]2013

    • Author(s)
      山ノ井, 田中, 豊島, 山崎, 大槻
    • Organizer
      電子情報通信学会MEとバイオサイバネティックス研究会
    • Place of Presentation
      徳島大学
    • Year and Date
      20130719-20
  • [Presentation] 脳波のモルフォロジカル・ウェーブレット解析2012

    • Author(s)
      井上勝裕
    • Organizer
      第5回ウェーブレット変換およびその応用に関するワークショップ
    • Place of Presentation
      豊橋市
    • Year and Date
      20121009-10
    • Invited
  • [Presentation] A new single-trial-EEG-based BCI using silent speech tasks2012

    • Author(s)
      T.Yamazaki, et al
    • Organizer
      NEUROSCIENCE 2012
    • Place of Presentation
      New Orleans
    • Year and Date
      20121000
  • [Presentation] Spatiotemporal localization and comparison of brain activity on recalling one type of Kanji homophones2012

    • Author(s)
      Y.Tanaka, M.Hirata, T.Yamanoi, H.Toyoshima, M.Ohtsuki and T.Yamazaki
    • Organizer
      第27回生体・生理工学シンポジウム講演論文集
    • Place of Presentation
      札幌
    • Year and Date
      20120919-21
  • [Presentation] 身体部位名称想起時における脳内活動部位の時空間推定2012

    • Author(s)
      田中, 山ノ井, 大槻, 豊島, 大西, 山崎
    • Organizer
      第28回ファジィシステムシンポジウム講演論文集
    • Place of Presentation
      名工大
    • Year and Date
      20120912-14
  • [Presentation] 身体部位名称想起時における脳内活動部位について2012

    • Author(s)
      田中, 山ノ井, 大槻, 豊島, 大西, 山崎
    • Organizer
      第22回ソフトサイエンス・ワークショップ講演論文集
    • Place of Presentation
      専修大
    • Year and Date
      20120309-10
  • [Book] Equivalent-Current-Dipole-Source-Locali zation-Based BCIs with Motor Imagery, In : Brain-Computer Interface Systems-Recent Progress and Future Prospects (Ed. Reza Fazel-Rezai)2013

    • Author(s)
      T.Yamazaki, et al
    • Total Pages
      155-174
    • Publisher
      INTECH

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Published: 2015-07-16  

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