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High-speed Character Input Using EEG by Control of Visual Stimulus Presentation Timing

Research Project

Project/Area Number 16K00263
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Human interface and interaction
Research InstitutionYamagata University

Principal Investigator

Fukami Tadanori  山形大学, 大学院理工学研究科, 教授 (70333987)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords脳波 / ブレインコンピュータインターフェイス / 視覚刺激 / 文字入力 / BCI / ユーザインターフェース
Outline of Final Research Achievements

In this research, we aim to develop a hybrid type input system using P300 and steady state visual evoked potential (SSVEP) which are widely used in character input using EEG. This system brings out the advantages of P300 and SSVEP and compensates for each other's shortcomings.
First of all, we established a simultaneous generation method by visual stimulus presentation. Next, using the presentation method, we confirmed that two different EEGs can be efficiently separated by controlling the presentation timing of candidate characters. We have shown that high speed-input can be realized by our original method. However, the degree of difference varies depending on the subject. It is a challenge to be addressed in the future.

Academic Significance and Societal Importance of the Research Achievements

本研究の目的は,脳波を用いて高速にコンピュータへ情報を入力する手法を開発することである。ここでは,文字を対象とし,ユーザが入力したい文字が光った際に出現する脳波を検出することで,入力対象の文字を特定する。本研究課題では,候補となる文字とその背景を利用して,異なる2種類の脳波を生成し,それぞれから得られる情報を合わせて判断することで入力性能を向上させる。ここで,我々は文字やその背景が光るタイミングを制御することにより効率よく2つの脳波を分離する方法を開発した。これを用いることで,高速に文字が入力可能であることを確認したが,性能向上に個人差があり,その解決は今後の課題として残された。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (11 results)

All 2018 2017 2016

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (8 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Authentication System Preventing Unauthorized Access of a Third Person Based on Steady State Visual Evoked Potentials2018

    • Author(s)
      T.Fukami, Y.Abe, T.Shimada, B.Ishikawa
    • Journal Title

      International Journal of Innovative Computing, Information and Control

      Volume: 14 Issue: 06 Pages: 2091

    • DOI

      10.24507/ijicic.14.06.2091

    • ISSN
      1349-4198
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The Improvement of the Ability of BCI by using Effects of Colors2017

    • Author(s)
      島田 尊正, 深見 忠典, 今野 紀子, 宮保 憲治
    • Journal Title

      IEEJ Transactions on Electronics, Information and Systems

      Volume: 137 Issue: 11 Pages: 1472-1478

    • DOI

      10.1541/ieejeiss.137.1472

    • NAID

      130006191827

    • ISSN
      0385-4221, 1348-8155
    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Fast Spike Detection in EEG Using Eigenvalue Analysis and Clustering of Spatial Amplitude Distribution2017

    • Author(s)
      T.Fukami, T.Shimada, B.Ishikawa
    • Journal Title

      Proc. of 39th Annual International Conference of IEEE Engineering in Medicine and Biology Society (EMBC2017)

      Pages: 467-470

    • DOI

      10.1109/embc.2017.8036863

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] Enhancement of P300 amplitude by feedback stimulus presentation reflecting evaluation value in BCI2018

    • Author(s)
      T.Fukami, T.Shimada
    • Organizer
      Proc. of 40th Annual International Conference of IEEE Engineering in Medicine and Biology Society (IEEE EMBC 2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 視覚刺激呈示タイミングの制御によるSSVEP/P300高速文字入力法の検討2017

    • Author(s)
      五十嵐 史也,深見 忠典
    • Organizer
      第48回日本生体医工学会東北支部大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 定常状態視覚誘発電位による個人認証2017

    • Author(s)
      阿部 裕人,秋山 翔平,深見 忠典
    • Organizer
      第48回日本生体医工学会東北支部大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 右利き左側頭葉損傷の 2 例の聴性 ERP の N1,P300 成分について2017

    • Author(s)
      石川文之進,鈴木 三夫,手塚 英夫,岡上 拓己,増渕 直幸,深見 忠典,加我 君孝
    • Organizer
      第47回日本臨床神経生理学会学術大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 色彩の効果を用いた BCI における意思判読正答率の向上2016

    • Author(s)
      森 啓祐,島田 尊正,深見 忠典,阪田 治
    • Organizer
      第46回日本臨床神経生理学会学術大会
    • Place of Presentation
      郡山・ホテルハマツ(福島県)
    • Year and Date
      2016-10-27
    • Related Report
      2016 Research-status Report
  • [Presentation] SSVEP型BCIにおける視覚刺激の色相特性の影響2016

    • Author(s)
      高田 駿,島田 尊正,深見 忠典,阪田 治
    • Organizer
      第46回日本臨床神経生理学会学術大会
    • Place of Presentation
      郡山・ホテルハマツ(福島県)
    • Year and Date
      2016-10-27
    • Related Report
      2016 Research-status Report
  • [Presentation] Effective Estimation Method of P300 and SSVEP in Hybrid BCI2016

    • Author(s)
      R.Mihira, R.Sawaki, T.Suzuki, T.Fukami, F.Ishikawa
    • Organizer
      SCIS-ISIS 2016
    • Place of Presentation
      北海学園大学(北海道)
    • Year and Date
      2016-08-25
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Analysis of Fundamental and Harmonic Frequency Components in Photic Driving Response2016

    • Author(s)
      Y.Abe, T.Fukami, T.Shimada, F.Ishikawa
    • Organizer
      SCIS-ISIS 2016
    • Place of Presentation
      北海学園大学(北海道)
    • Year and Date
      2016-08-25
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2020-03-30  

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