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

Optimal Brain Stimulation Based on Computations: Application to Personalized Rehabilitation

Research Project

Project/Area Number 17H00869
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Rehabilitation science/Welfare engineering
Research InstitutionNagoya Institute of Technology

Principal Investigator

Hirata Akimasa  名古屋工業大学, 工学(系)研究科(研究院), 教授 (00335374)

Co-Investigator(Kenkyū-buntansha) 定藤 規弘  生理学研究所, システム脳科学研究領域, 教授 (00273003)
大高 洋平  藤田医科大学, 医学部, 教授 (00317257)
田中 悟志  浜松医科大学, 医学部, 教授 (10545867)
Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥42,120,000 (Direct Cost: ¥32,400,000、Indirect Cost: ¥9,720,000)
Fiscal Year 2020: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2019: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Fiscal Year 2018: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2017: ¥20,540,000 (Direct Cost: ¥15,800,000、Indirect Cost: ¥4,740,000)
Keywords電気薬学 / 脳刺激 / リハビリテーション / 電磁界シミュレーション / ニューロモデュレーション / 最適化 / 支援システム / 支援ソフトウェア開発 / ニューロモ デュレーション / 医用画像処理 / 脳卒中
Outline of Final Research Achievements

To provide a novel treatment method for stroke patients using transcranial
direct current stimulation (tDCS), an integrated study was conducted
using a computational physical model and experiments. First, we developed a method to automatically create a human head model considering electrical characteristics by using machine learning based on multiple types of medical images for individuals. Based on the head model for each individual, we performed physical computation to reproduce the distribution of the electric current induced in the brain, clarifying the differences due to individual variability and understanding the physical mechanism. Next, we developed software that determines the optimum stimulus parameters quickly for each individual and verified it through effectiveness experiments. In particular, we clarified that there is an optimum current intensity for stimulation.

Academic Significance and Societal Importance of the Research Achievements

神経系への電気刺激は、副作用がほとんどない上、従来の薬よりも高い治療効果が得られるとの報告がなされ「電気薬学」として注目されている。これまでの電気薬学における研究は、脳刺激による生体反応の確認が主であり、「患者個々人で電流をどの程度処方すればよいか?」について、十分な検討がなされていたとは言い難かった。計算物理モデルと生体実験の融合アプローチにより、個人差によるばらつきを明らかにし、個々人のモデルを用いることにより作用物理因子量を定量化するなど、基礎的な知見に基づき、脳卒中の機能障害に対するオーダーメード脳電気刺激という新たな戦略を提案した。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (30 results)

All 2021 2020 2019 2018 2017 Other

All Int'l Joint Research (4 results) Journal Article (13 results) (of which Int'l Joint Research: 9 results,  Peer Reviewed: 10 results,  Open Access: 3 results) Presentation (13 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results)

  • [Int'l Joint Research] アールト大学(フィンランド)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Aalto University(フィンランド)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Aalto University(フィンランド)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] University of Split(クロアチア)

    • Related Report
      2017 Annual Research Report
  • [Journal Article] Influence of segmentation accuracy in structural MR head scans on electric field computation for TMS and tES2021

    • Author(s)
      Rashed Essam A、Gomez-Tames Jose、Hirata Akimasa
    • Journal Title

      Physics in Medicine & Biology

      Volume: 66 Issue: 6 Pages: 064002-064002

    • DOI

      10.1088/1361-6560/abe223

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] End-to-end semantic segmentation of personalized deep brain structures for non-invasive brain stimulation2020

    • Author(s)
      Rashed Essam A.、Gomez-Tames Jose、Hirata Akimasa
    • Journal Title

      Neural Networks

      Volume: 125 Pages: 233-244

    • DOI

      10.1016/j.neunet.2020.02.006

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Guidelines for TMS/tES clinical services and research through the COVID-19 pandemic2020

    • Author(s)
      Bikson Marom、Hanlon Colleen A.、... A. Hirata, (41 authors),
    • Journal Title

      Brain Stimulation

      Volume: 13 Issue: 4 Pages: 1124-1149

    • DOI

      10.1016/j.brs.2020.05.010

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Significant group-level hotspots found in deep brain regions during transcranial direct current stimulation (tDCS): A computational analysis of electric fields2020

    • Author(s)
      J. Gomez-Tames, A. Asai, A. Hirata
    • Journal Title

      Clinical Neurophysiology

      Volume: 131 Issue: 3 Pages: 755-765

    • DOI

      10.1016/j.clinph.2019.11.018

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cost of focality in TDCS: Interindividual variability in electric fields2020

    • Author(s)
      M. Mikkonen, I. Laakso, S. Tanaka, A Hirata
    • Journal Title

      Brain stimulation

      Volume: 13 Issue: 1 Pages: 117-124

    • DOI

      10.1016/j.brs.2019.09.017

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Group-level analysis of induced electric field in deep brain regions by different TMS coils2020

    • Author(s)
      Gomez-Tames Jose、Hamasaka Atsushi、Hirata Akimasa、Laakso Ilkka、Lu Mai、Ueno Shoogo
    • Journal Title

      Physics in Medicine & Biology

      Volume: 65 Issue: 2 Pages: 025007-025007

    • DOI

      10.1088/1361-6560/ab5e4a

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Human Head Skin Thickness Modeling for Electromagnetic Dosimetry2019

    • Author(s)
      Rashed Essam A.、Gomez-Tames Jose、Hirata Akimasa
    • Journal Title

      IEEE Access

      Volume: 7 Pages: 46176-46186

    • DOI

      10.1109/access.2019.2904743

    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Journal Article] Brain AI: Deep Learning for Brain Stimulation2019

    • Author(s)
      Rashed Essam A.、Sakai Takashi、Gomez-Tames Jose、Hirata Akimasa
    • Journal Title

      IEEE Pulse

      Volume: 10 Issue: 4 Pages: 3-5

    • DOI

      10.1109/mpuls.2019.2923888

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Group-level and functional-region analysis of electric-field shape during cerebellar transcranial direct current stimulation with different electrode montages2019

    • Author(s)
      Gomez-Tames Jose、Asai Akihiro、Mikkonen Marko、Laakso Ilkka、Tanaka Satoshi、Uehara Shintaro、Otaka Yohei、Hirata Akimasa
    • Journal Title

      Journal of Neural Engineering

      Volume: 16 Issue: 3 Pages: 036001-036001

    • DOI

      10.1088/1741-2552/ab0ac5

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Can electric fields explain inter-individual variability in transcranial direct current stimulation of the motor cortex?2019

    • Author(s)
      Laakso Ilkka、Mikkonen Marko、Koyama Soichiro、Hirata Akimasa、Tanaka Satoshi
    • Journal Title

      Scientific Reports

      Volume: 9 Issue: 1 Pages: 626-626

    • DOI

      10.1038/s41598-018-37226-x

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Combined Simulation of Bioelectromagnetics and Nerve Activation and its Application2018

    • Author(s)
      Hirata Akimasa、Laakso Ilkka、Gomez-Tames Jose、Hontani Hidekata
    • Journal Title

      IEEJ Transactions on Fundamentals and Materials

      Volume: 138 Issue: 6 Pages: 265-270

    • DOI

      10.1541/ieejfms.138.265

    • NAID

      130007382636

    • ISSN
      0385-4205, 1347-5533
    • Year and Date
      2018-06-01
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] TMS Motor Thresholds Correlate With TDCS Electric Field Strengths in Hand Motor Area2018

    • Author(s)
      Mikkonen Marko、Laakso Ilkka、Sumiya Motofumi、Koyama Soichiro、Hirata Akimasa、Tanaka Satoshi
    • Journal Title

      Frontiers in Neuroscience

      Volume: 12 Pages: 426-426

    • DOI

      10.3389/fnins.2018.00426

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 電磁界シミュレーションと機械学習の融合によるパーソナル診断・治療の展望2018

    • Author(s)
      平田晃正, 本谷秀堅
    • Journal Title

      電子情報通信学会誌

      Volume: 100 Pages: 362-366

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Presentation] リードフィールド行列に基づいた脳波源推定に関する実験的検討2021

    • Author(s)
      森寺峻義,ゴメスタメス ホセ,和坂俊昭,木田哲夫,平田晃正
    • Organizer
      電子情報通信学会 電子情報通信学会 ソサイエティ大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] tDCSによる下肢一次運動野の最適刺激における電極条件の検討2021

    • Author(s)
      濱島弘紀,平田晃正,Jose Gomez-Tames
    • Organizer
      電子情報通信学会 電子情報通信学会 ソサイエティ大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 下肢一次運動野及び補足運動野を対象としたtDCS電極条件の評価2020

    • Author(s)
      209.濱島弘紀,ゴメスタメス ホセ,上原信太郎,大高洋平,田中悟志,平田晃正
    • Organizer
      電子情報通信学会 信学技報 EST2020-36
    • Related Report
      2020 Annual Research Report
  • [Presentation] リードフィールド行列に基づいた脳波源の位置推定に関する特性評価2020

    • Author(s)
      森寺峻義, ラシドイサム,平田晃正
    • Organizer
      電子情報通信学会 信学技報 EST2020-57
    • Related Report
      2020 Annual Research Report
  • [Presentation] Identifying hotspots during cerebellar tDCS stimulation: group-analysis computation2019

    • Author(s)
      A. Asai, J. Gomez-Tames, S. Kodera, Y. Diao, and A. Hirata
    • Organizer
      Asia-Pacific Electromagnetic Compatibility
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Electrostimulation thresholds for transcranial magnetic stimulation2019

    • Author(s)
      M. Mikkonen, M. Soldati, I. Laakso, T. Murakami, Y. Ugawa, S. Tanaka, and A. Hirata
    • Organizer
      BioEM2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Which deep brain regions are most activated in a group of subjects by non-invasive stimulation techniques?2019

    • Author(s)
      J. Gomez-Tames, A. Asai, A. Hamasaka, I. Laakso, M. Lu, S. Ueno, and A. Hirata
    • Organizer
      BioEM2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] シミュレーションデータを利用する TMSコイルによる脳内誘導電界の実時間推定器の構築2019

    • Author(s)
      本谷秀堅, 牧豊大, 横田達也, ラークソ イルッカ, 平田晃正
    • Organizer
      信学技報 エレクトロニクスシミュレーション研究会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Matching Pursuit法を用いた脳波源推定におけるノイズ耐性の評価2019

    • Author(s)
      森寺峻義, 伊藤孝弘, 平田晃正
    • Organizer
      信学技報 エレクトロニクスシミュレーション研究会
    • Related Report
      2019 Annual Research Report
  • [Presentation] tDCSにおける脳深部領域の電界評価2019

    • Author(s)
      浅井暁宏, ゴメスタメス ホセ, 平田晃正
    • Organizer
      信学技報 エレクトロニクスシミュレーション研究会
    • Related Report
      2019 Annual Research Report
  • [Presentation] サブグリッド法を適応したSPFD解析による一様磁界ばく露解析2018

    • Author(s)
      電子情報通信学会総合大会
    • Organizer
      中西優大,平田晃正
    • Related Report
      2017 Annual Research Report
  • [Presentation] Variability in TDCS electric fields: Effects of electrode size and configuration2017

    • Author(s)
      I. Laakso, S. Tanaka, M. Mikkonen, S. Koyama, A. Hirata
    • Organizer
      URSI General Assembly Meeting
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ctDCSによる小脳内誘導電界の解析2017

    • Author(s)
      山上智義, 伊藤孝弘, ゴメスタメス ホセ, ラークソ イルッカ, 平田晃正
    • Organizer
      電子情報通信学会電磁界理論研究会
    • Related Report
      2017 Annual Research Report

URL: 

Published: 2017-04-28   Modified: 2022-01-27  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi