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Neural circuit mechanism of flexible decision-making

Research Project

Project/Area Number 21H02803
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 51020:Cognitive and brain science-related
Research InstitutionKyoto University

Principal Investigator

Sasaki Ryo  京都大学, 医学研究科, 助教 (70817931)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2023: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2022: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2021: ¥10,790,000 (Direct Cost: ¥8,300,000、Indirect Cost: ¥2,490,000)
Keywords意思決定 / オプトジェネティクス / 大規模神経活動デコーディング / マカクサル / 報酬とリスク
Outline of Research at the Start

神経回路ネットワークのダイナミクスがどのように戦略的に移り変わりながら意思情報を統合していくかの脳機能を解明する。具体的には、非ヒト科霊長類(マカクサル)を用いて、報酬とリスクをバランスよく獲得するための戦略的な意思決定の神経回路機構を、光遺伝学的手法による神経回路選択的操作と大規模神経活動記録からの計算論的解析を同時に組み込むことで明らかにする。複数脳領野における多数神経活動のデコーディング解析を光遺伝学と組み合わせて神経回路特異的に意思決定の脳機能の解を得ることは、世界初でありこれら新たな手法が確立すれば、巨大脳における全脳ネットワークの可視化を一気に加速できる。

Outline of Final Research Achievements

The purpose of this study was to understand the brain mechanism of how neural circuit dynamics flexibly change and integrate information for decision-making. In order to achieve this goal, the researcher selectively activated the VTA-6V pathway in macaque monkeys while they perform a high risk-high return (HH) versus low risk-low return (LL) choice task. The involvement of the VTA-6V pathway in decision-making was also examined by utilizing decoding analysis. Furthermore, the researcher have achieved constructing an unprecedented experimental system that optically stimulates the areas of 6V, OFC, dACC, and VTA, while simultaneously recording these areas in each combination. While working on this experiment, the researcher has been examining the effects of activation of specific pathways on other large-scale pathways to understand the mutual roles of each brain area and how the neural circuit changes from moment to moment in flexible decision-making.

Academic Significance and Societal Importance of the Research Achievements

脳深部も含めた複数脳領野における多数神経活動からのデコーディング解析と、光遺伝学的手法を組み合わせて神経回路特異的に意思決定の脳機能の解を得ることは、世界初の試みであり、学術的意義が高い。巨大脳における皮質領域間のトップダウン、ボトムアップ経路の機能的意義が解明され、感覚情報から運動情報への神経回路網が可視化でき、認知神経科学に新たな展開が生まれると期待される。また、霊長類における皮質下から皮質への広汎な投射系の制御により意思決定を外因的にコントロールできるようになれば、「意思決定」の障害が顕著な症候である精神疾患の治療など臨床応用も含めた新たな分野の開拓が期待される点に社会的意義がある。

Report

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

    (22 results)

All 2024 2023 2022 2021 Other

All Journal Article (2 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results) Presentation (17 results) (of which Int'l Joint Research: 3 results,  Invited: 6 results) Remarks (3 results)

  • [Journal Article] Balancing risk-return decisions by manipulating the mesofrontal circuits in primates2024

    • Author(s)
      Sasaki R., Ohta Y., Onoe H., Yamaguchi R., Miyamoto T., Tokuda T., Tamaki Y., Isa K., Takahashi J., Kobayashi K., Ohta J., Isa T.
    • Journal Title

      Science

      Volume: 383 Issue: 6678 Pages: 55-61

    • DOI

      10.1126/science.adj6645

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Task-Specific Employment of Sensory Signals Underlies Rapid Task Switching2022

    • Author(s)
      Sasaki Ryo、Kumano Hironori、Mitani Akinori、Suda Yuki、Uka Takanori
    • Journal Title

      Cerebral Cortex

      Volume: - Issue: 21 Pages: 4657-4670

    • DOI

      10.1093/cercor/bhab508

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Decoding Network Activity in Prefrontal Cortical Regions with Optogenetic Network Control for Flexible Risk-return Decision Making2023

    • Author(s)
      Sasaki R.
    • Organizer
      Uehara International Symposium 2023 “Big Data-Driven Approaches with AI in Life Sciences”
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 柔軟な報酬獲得戦略を導く認知多様性の脳神経回路動態の解明2023

    • Author(s)
      佐々木亮
    • Organizer
      生理学研究所研究会「価値判断を生み出す脳の仕組み. 点と線から神経回路のスケーラビリティーを捉えられるか?」
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Dynamic readout of multiscale reward variables from low-dimensional neural oscillation in frontal cortex during risk-return decision-making2023

    • Author(s)
      Miyamoto T, Isa T, Sasaki R
    • Organizer
      The 46th Annual Meeting of the Japan Neuroscience Society
    • Related Report
      2023 Annual Research Report
  • [Presentation] Computational mechanisms of risk preference generated in recurrent neural networks2023

    • Author(s)
      Nakazawa T, Isa T, Sasaki R.
    • Organizer
      The 46th Annual Meeting of the Japan Neuroscience Society
    • Related Report
      2023 Annual Research Report
  • [Presentation] Computational mechanisms of risk preference generated in recurrent neural networks2023

    • Author(s)
      Nakazawa T, Isa T, Sasaki R.
    • Organizer
      The 3rd Research Networking Salon
    • Related Report
      2023 Annual Research Report
  • [Presentation] Neural mechanisms for flexible risk-return decision making2023

    • Author(s)
      Sasaki R.
    • Organizer
      The 100th Anniversary Annual Meeting of the Physiological Society of Japan
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Neural population dynamics of multidimensional economic variables in mesocortical pathway during risk-return decision making2023

    • Author(s)
      Ikuchi K, Isa T, Sasaki R.
    • Organizer
      The 100th Anniversary Annual Meeting of the Physiological Society of Japan
    • Related Report
      2022 Annual Research Report
  • [Presentation] Decoding oscillatory power signals during risk-return decision-making in the prefrontal and premotor cortices2023

    • Author(s)
      Miyamoto T, Yamaguchi R, Onoe H, Isa T, Sasaki R.
    • Organizer
      The 100th Anniversary Annual Meeting of the Physiological Society of Japan
    • Related Report
      2022 Annual Research Report
  • [Presentation] A novel virtual reality task for measuring strategic decision-making for balancing the reward and cost2023

    • Author(s)
      Ishio M, Isa T, Sasaki R.
    • Organizer
      The 100th Anniversary Annual Meeting of the Physiological Society of Japan
    • Related Report
      2022 Annual Research Report
  • [Presentation] A novel virtual reality task for measuring strategic decision-making with the balance between reward and cost in human and non-human primates2023

    • Author(s)
      Ishio M, Isa T, Sasaki R.
    • Organizer
      JANUBET Symposium: Tools and the Study of Brain Systems
    • Related Report
      2022 Annual Research Report
  • [Presentation] Optogenetic activation of the mesofrontal pathway in changing the risk-return decision balance2022

    • Author(s)
      Sasaki R.
    • Organizer
      2022 Genetic technologies for systems neuroscience in non-human primates [Workshop on the use of molecular tools in non-human primates], National Institute of Mental Health (NIMH)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Neural population dynamics of multidimensional economic variables in prefrontal cortex during risky choice2022

    • Author(s)
      Ikuchi K, Isa T, Sasaki R.
    • Organizer
      JANUBET Symposium: Tools and the Study of Brain Systems
    • Related Report
      2022 Annual Research Report
  • [Presentation] Neural oscillations of the subdivision in prefrontal cortex during risk-return decision-making2022

    • Author(s)
      Miyamoto T, Yamaguchi R, Onoe H, Isa T, Sasaki R.
    • Organizer
      JANUBET Symposium: Tools and the Study of Brain Systems
    • Related Report
      2022 Annual Research Report
  • [Presentation] Mesofrontal pathway for risk-return decision making2022

    • Author(s)
      佐々木亮
    • Organizer
      ASHBi Retreat 2022
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Optogenetic control of risk-return decision making in macaques2022

    • Author(s)
      Ryo Sasaki
    • Organizer
      CIN-NIPS-Asia Pacific Systems Neuroscience Symposium 2022
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] NeuroAdjustment for the balance between risky-safer decision making2022

    • Author(s)
      Ryo Sasaki, Yasumi Ohta, Hirotaka Onoe, Reona Yamaguchi, Takashi Tokuda, Kaoru Isa, Jun Takahashi, Kenta Kobayashi, Jun Ohta, Tadashi Isa
    • Organizer
      NEURO 2022
    • Related Report
      2021 Annual Research Report
  • [Presentation] Neural circuits for risk-return decision making2021

    • Author(s)
      佐々木 亮
    • Organizer
      第44回日本神経科学大会/第1回CJK国際会議
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Remarks] リスクと報酬の意思決定バランスを光で調節- 精神神経疾患などの病態解明に期待

    • URL

      https://ashbi.kyoto-u.ac.jp/ja/news/20240105_research-result_tadashi-isa/

    • Related Report
      2023 Annual Research Report
  • [Remarks] リスクと報酬の意思決定バランスを光で調節 ―精神神経疾患の病態解明に期待―

    • URL

      https://nscinbiol.med.kyoto-u.ac.jp/topics/%e3%83%aa%e3%82%b9%e3%82%af%e3%81%a8%e5%a0%b1%e9%85%ac%e3%81%ae%e6%84%8f%e6%80%9d%e6%b1%ba%e5%ae%9a

    • Related Report
      2023 Annual Research Report
  • [Remarks] 報酬とリスクの意思決定バランスを光で調節 ―精神神経疾患の病態解明に期待―

    • URL

      https://www.jnss.org/news-topics?id=240207-02&u=02f80c581d26040781f2ec595dad5ca9

    • Related Report
      2023 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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