• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Development of a decoding method for imagined characters (vowels and consonants) using EEG.

Research Project

Project/Area Number 15K01849
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Brain biometrics
Research InstitutionTokyo Institute of Technology

Principal Investigator

Yoshimura Natsue  東京工業大学, 科学技術創成研究院, 准教授 (00581315)

Co-Investigator(Kenkyū-buntansha) 緒方 洋輔  東京工業大学, 科学技術創成研究院, 特任助教 (60641355)
Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords脳波 / デコーディング / 機械学習 / 逆問題 / ブレイン・コンピュータ・インタフェース / 機能的MRI
Outline of Final Research Achievements

Electroencephalography (EEG) has low spatial resolution because it is recorded from sensors placed on the scalp. For this reason, it is considered to be hard to decode imagined characters in the brain from EEG. To solve the problem, EEG cortical current source is calculated using machine learning methods in this research project.
During the research period, decoding performance of vowel classification has enhanced using the EEG current source signals compared to that using EEG sensor signals. This achievement was published in an international journal (Yoshimura et al., Frontiers in Neuroscience, 2016).
The method has showed efficiency also for consonants classification (Under preparation for publish).

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (21 results)

All 2018 2017 2016 2015 Other

All Int'l Joint Research (4 results) Journal Article (7 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 7 results,  Open Access: 7 results,  Acknowledgement Compliant: 3 results) Presentation (10 results) (of which Int'l Joint Research: 5 results,  Invited: 2 results)

  • [Int'l Joint Research] University of Tuebingen(ドイツ)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Polish Academy of Science(ポーランド)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Polish Academy of Science(ポーランド)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] University of Trento(イタリア)

    • Related Report
      2016 Research-status Report
  • [Journal Article] Decoding of Ankle Flexion and Extension from Cortical Current Sources Estimated from Non-invasive Brain Activity Recording Methods2018

    • Author(s)
      Mejia Tobar Alejandra、Hyoudou Rikiya、Kita Kahori、Nakamura Tatsuhiro、Kambara Hiroyuki、Ogata Yousuke、Hanakawa Takashi、Koike Yasuharu、Yoshimura Natsue
    • Journal Title

      Frontiers in Neuroscience

      Volume: 11 Pages: 1-12

    • DOI

      10.3389/fnins.2017.00733

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Decoding finger movement in humans using synergy of EEG cortical current signals2017

    • Author(s)
      Yoshimura Natsue、Tsuda Hayato、Kawase Toshihiro、Kambara Hiroyuki、Koike Yasuharu
    • Journal Title

      Scientific Reports

      Volume: 7 Issue: 1 Pages: 1-11

    • DOI

      10.1038/s41598-017-09770-5

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Decoding of emotional responses to user-unfriendly computer interfaces via electroencephalography signals2017

    • Author(s)
      Yoshimura Natsue、Koga Osamu、Katsui Yu、Ogata Yousuke、Kambara Hiroyuki、Koike Yasuharu
    • Journal Title

      ACTA IMEKO

      Volume: 6 Issue: 2 Pages: 93-93

    • DOI

      10.21014/acta_imeko.v6i2.383

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Hybrid control of a vision-guided robot arm by EOG, EMG, EEG biosignals and head movement acquired via a consumer-grade wearable device.2017

    • Author(s)
      Minati L., Yoshimura N., Koike Y.
    • Journal Title

      IEEE Access

      Volume: 4 Pages: 9528-9541

    • DOI

      10.1109/access.2017.2647851

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Mapping ECoG channel contributions to trajectory and muscle activity prediction in human sensorimotor cortex2017

    • Author(s)
      Nakanishi Y., Yanagisawa T., Shin D., Kambara H., Yoshimura N., Tanaka M., Fukuma R., Kishima H., Hirata M., and Koike Y
    • Journal Title

      Scientific Reports

      Volume: 7 Issue: 1 Pages: 1-13

    • DOI

      10.1038/srep45486

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Controlling an electromyography-based power-assist device for the wrist using electroencephalography cortical currents2016

    • Author(s)
      Kawase T., Yoshimura N., Kambara H., Koike Y
    • Journal Title

      Advanced robotics

      Volume: 31 Issue: 1-2 Pages: 88-96

    • DOI

      10.1080/01691864.2016.1215935

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Decoding of covert vowel articulation using electroencephalography cortical currents2016

    • Author(s)
      Natsue Yoshimura, Atsushi Nishimoto, Abdelkader Nasreddine Belkacem, Duk Shin, Hiroyuki Kambara, Takashi Hanakawa, Yasuharu Koike
    • Journal Title

      Frontiers in Neuroscience

      Volume: 10 Pages: 1-15

    • DOI

      10.3389/fnins.2016.00175

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] Synergy analysis for motor decoding2017

    • Author(s)
      Yoshimura Natsue, Kawase Toshihiro, Koike Yasuharu
    • Organizer
      第40回日本神経科学大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Classification of ankle flexion and extension tasks using non-invasive brain activity recording methods2017

    • Author(s)
      Mejia Tobar Alejandra, Hyoudo RIkiya, Kita Kahori, Nakamura Tatsuhiro, Kambara Hiroyuki, Hanakawa Takashi, Koike Yasuharu, Yoshimura Natsue RIkiya, Kita Kahori, Nakamura Tatsuhiro, Kambara Hiroyuki, Hanakawa Takashi, Koike Yasuharu, Yoshimura Natsue Riki
    • Organizer
      Graz BCI Conference 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Brain activity synergy analysis for motor decoding2017

    • Author(s)
      Yoshimura Natsue, Tsuda Hyato, Kawase Toshihiro, Kambara Hiroyuki, Koike Yasuharu
    • Organizer
      Yamada Symposium 2017
    • Related Report
      2017 Annual Research Report
  • [Presentation] Muscle activity reconstruction of ankle flexors and extensors using non-invasive brain activity recording methods2016

    • Author(s)
      Mejia Tobar A., Hyoudou R., Kita K., Nakamura T., Kambara H., Hanakawa T., Koike Y., and Yoshimura N
    • Organizer
      Neuroscience 2016
    • Place of Presentation
      The San Diego Convention Center (San Diego, CA, USA)
    • Year and Date
      2016-11-12
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] 脳波による脳情報のデコーディングとリハビリテーションへの応用2016

    • Author(s)
      吉村奈津江
    • Organizer
      神奈川県ヘルスケア・ニューフロンティア講座
    • Place of Presentation
      横浜崎陽軒(横浜市)
    • Year and Date
      2016-10-23
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] Neural representation of wrist motor coordinate frames and their application2016

    • Author(s)
      Natsue Yoshimura
    • Organizer
      ATR Mini Symposium on Sensorimotor Control and Robotics
    • Place of Presentation
      ATR (京都府)
    • Year and Date
      2016-08-08
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] Classifying force level of hand grasping and opening using electroencephalography cortical currents2016

    • Author(s)
      Yoshimura N., Okushita R., Aikawa H., Kambara H., Hanakawa T., and Koike Y.
    • Organizer
      The Sixth International Brain-Computer Interface Meeting 2016
    • Place of Presentation
      The Asilomar Conference Center in Pacific Grove, California, USA
    • Year and Date
      2016-05-30
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Electromyographic activity reconstruction of ankle flexors and extensors from estimated cortical currents2016

    • Author(s)
      Mejia Tobar A., Hyoudou R., Kita K., Nakamura T., Kambara H., Hanakawa T., Koike Y., and Yoshimura N.
    • Organizer
      The 1st International Symposium on Embodied-Brain Systems Science (EmboSS 2016)
    • Place of Presentation
      東京大学
    • Year and Date
      2016-05-08
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Evaluation of usability for cursor control from electroencephalography2015

    • Author(s)
      Osamu Koga, Natsue Yoshimura, Hiroyuki Kambara, Yasuharu Koike
    • Organizer
      XXI IMEKO World Congress "Measurement in Research and Industry"
    • Place of Presentation
      Prague, Czech Republic
    • Year and Date
      2015-08-30
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] Muscle activity reconstruction for ankle flexor and extensor2015

    • Author(s)
      Alejandra Mejia Tobar, Rikiya Hyoudou, Kahori Kita, Tatsuhiro Nakamura, Hiroyuki Kambara, Takashi Hanakawa, Yasuharu Koike, Natsue Yoshimura
    • Organizer
      第38回日本神経科学大会
    • Place of Presentation
      神戸国際展示場
    • Year and Date
      2015-07-28
    • Related Report
      2015 Research-status Report

URL: 

Published: 2015-04-16   Modified: 2019-03-29  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi