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Multicellular Information Representation in the Animal Brains

Planned Research

Project AreaMulticellular neurobiocomputing
Project/Area Number 21H05166
Research Category

Grant-in-Aid for Transformative Research Areas (B)

Allocation TypeSingle-year Grants
Review Section Transformative Research Areas, Section (IV)
Research InstitutionDoshisha University

Principal Investigator

Masamizu Yoshito  同志社大学, 脳科学研究科, 教授 (90608530)

Co-Investigator(Kenkyū-buntansha) 神谷 温之  北海道大学, 医学研究院, 教授 (10194979)
Project Period (FY) 2021-08-23 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥30,940,000 (Direct Cost: ¥23,800,000、Indirect Cost: ¥7,140,000)
Fiscal Year 2023: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Fiscal Year 2022: ¥12,740,000 (Direct Cost: ¥9,800,000、Indirect Cost: ¥2,940,000)
Fiscal Year 2021: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Keywords多細胞バイオ計算 / 損傷耐性 / 自己組織性 / カルシウムイメージング / 脳梗塞 / in vivoカルシウムイメージング
Outline of Research at the Start

脳をバイオコンピューティングシステムとして扱った場合の特徴は,その損傷耐性と自己組織性にある.本計画班では,モデル動物(げっ歯類)を対象とし,大脳皮質・運動野損傷モデルの実験系を用いる.具体的には,損傷前後と運動機能回復過程における運動課題実行時,大脳皮質での多細胞の神経活動変化を,in vivo カルシウムイメージングを用いて計測する.シナプスレベルでの計測では,A03松井班の協力も得る.A01香取班との連携で汎用的な再帰的ニューラルネットワークモデルとして記述するための各種パラメータを推定し,A02山本班らが作製した人工神経回路の自発活動や刺激応答と定量比較する.

Outline of Final Research Achievements

We developed systems of in vivo calcium imaging using the multi-point laser scanning confocal microscopy, which enables wide-field imaging, and the two-photon excitation laser scanning microscopy, which allows deep-depth imaging. Next, we established a system to damage the primary motor cortex using rose bengal. Furthermore, we confirmed the anatomical and functional connections between the transplanted neuronal spheroid and cerebral neocortex. A bio-inspired mathematical model of axonal conduction has also been constructed.

Academic Significance and Societal Importance of the Research Achievements

脳をバイオコンピューティングシステムとして扱った場合の特徴は、その損傷耐性と自己組織性にある。本研究で構築した実験系を用いることによって大脳皮質損傷後の自己修復、さらには損傷部位への神経細胞塊移植による自己組織的機能補填の脳内基盤が解明され、ロバスト性の高いコンピューティングシステム設計への貢献が期待される。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (8 results)

All 2023 2022 2021

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (7 results) (of which Int'l Joint Research: 5 results,  Invited: 1 results)

  • [Journal Article] Simulation test for impartment of use-dependent plasticity by inactivation of axonal potassium channels on hippocampal mossy fibers2023

    • Author(s)
      Zheng Fumeng、Kamiya Haruyuki
    • Journal Title

      Frontiers in Cellular Neuroscience

      Volume: 17 Pages: 1154910-1154910

    • DOI

      10.3389/fncel.2023.1154910

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Development in technology for the production of new neural circuits in the brain2023

    • Author(s)
      Yoshito Masamizu
    • Organizer
      The 12th RIEC International Symposium on Brain Functions and Brain Computer
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Technological development to construct brain's neural circuits2023

    • Author(s)
      Yoshito Masamizu
    • Organizer
      2023 International Symposium on Nonlinear Theory and Its Applications (NOLTA2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 海馬苔状線維投射の刺激誘発性バースト2023

    • Author(s)
      神谷温之
    • Organizer
      第101回日本生理学会大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Stimulus-induced bursts of hippocampal mossy fibers2023

    • Author(s)
      Haruyuki Kamiya
    • Organizer
      The 12th RIEC International Symposium on Brain Functions and Brain Computer
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 神経回路を創出するための基盤技術開発2022

    • Author(s)
      正水 芳人
    • Organizer
      第83回応用物理学会秋季学術講演会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Technical development to construct novel neural circuits in the brain2022

    • Author(s)
      Yoshito Masamizu
    • Organizer
      The 11th RIEC International Symposium on Brain Functions and Brain Computer
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of techniques to construct novel brain's neural circuits2021

    • Author(s)
      Yoshito Masamizu
    • Organizer
      The 10th RIEC International Symposium on Brain Functions and Brain Computer
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research

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Published: 2021-10-22   Modified: 2025-01-30  

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