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Neural circuits involved in decision-making strategies in uncertain situations

Research Project

Project/Area Number 19K06948
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 46030:Function of nervous system-related
Research InstitutionDoshisha University

Principal Investigator

Hirokawa Junya  同志社大学, 研究開発推進機構, 准教授 (40546470)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Discontinued (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords意思決定 / 知覚弁別 / 価値判断 / 光遺伝学 / 前頭前野 / 不確実性 / 線条体 / 視覚野 / 眼窩前頭皮質 / テトロード / ラット / メタ認知 / 頭頂連合野 / 皮質線条体投射
Outline of Research at the Start

動物は状況の不確実性(見通しの悪さ)によって行動戦略を切り替える。動物はどのようにして「見通しが悪い」ことをメタ認知(俯瞰的に理解)し、それを行動に反映させるのだろうか?本研究はメタ認知に関わるとされる眼窩前頭皮質と、行動の固執性に関わる線条体の連絡経路に着目し、この経路が不確実性による行動戦略の切り替えに必要であるかを検証する。具体的には、光遺伝学的方法を用い、眼窩前頭皮質ー線条体投射細胞を同定した上で動物に報酬確率が変動する状況における感覚刺激判別課題を行わせ、それらの細胞群がどのような情報を表象し、その活動の操作が行動戦略のシフトに影響するかどうかを検証する。

Outline of Final Research Achievements

Animals have the ability to switch their behavioral strategies in response to uncertain situations. This study aimed to understand how animals recognize perceptual uncertainty and utilize it in their behavior. Specifically, rats were trained on perceptual decision tasks under uncertainty, and the activity patterns of neurons in the prefrontal cortex were analyzed. The results revealed the existence of functional clusters of neurons in the prefrontal cortex that carry information about confidence, reawrd amount and integrated value for optimal decisions. In addition, one of these clusters showed close relationship with anatomical structures (striatum). Furthermore, we found that neural activities independent of visual responses in the visual cortex was associated with strategies for animals' behavioral response to visual stimuli.

Academic Significance and Societal Importance of the Research Achievements

本研究は、意思決定時における前頭前野の神経細胞群の機能的構成を明らかにし、少なくとも一部の機能的集団と神経投射の間に密接な対応関係があることを示しました。この発見により、例えば、本研究で同定された神経回路(前頭前野→線条体投射)を標的とすることで、意思決定に障害を示す依存症などの精神神経疾患を、より効果的に治癒する方法の開発につながると考えています。また、視覚野において視覚応答を示さない神経細胞の活動が行動戦略に重要な役割を果たしていることを示し、視覚野が単純な視覚情報処理を超えた役割を果たしていることを示した。

Report

(4 results)
  • 2022 Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (22 results)

All 2021 2020 2019 Other

All Int'l Joint Research (3 results) Journal Article (6 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 5 results,  Open Access: 4 results) Presentation (10 results) (of which Int'l Joint Research: 5 results,  Invited: 1 results) Remarks (3 results)

  • [Int'l Joint Research] Cold Spring Harbor Laboratory(米国)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] Cold Spring Harbor Laboratory/Massachusetts Institute of Technology(米国)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] University of Oxford/University College London(英国)

    • Related Report
      2019 Research-status Report
  • [Journal Article] Contribution of non-sensory neurons in visual cortical areas to visually guided decisions in the rat2021

    • Author(s)
      Yuma Osako, Tomoya Ohnuki, Yuta Tanisumi, Kazuki Shiotani, Hiroyuki Manabe, Yoshio Sakurai, Junya Hirokawa
    • Journal Title

      Current Biology

      Volume: - Issue: 13 Pages: 1-13

    • DOI

      10.1016/j.cub.2021.03.099

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Over-representation of fundamental decision variables in the prefrontal cortex underlies decision bias2021

    • Author(s)
      Ohnuki Tomoya、Osako Yuma、Manabe Hiroyuki、Sakurai Yoshio、Hirokawa Junya
    • Journal Title

      Neuroscience Research

      Volume: 173 Pages: 1-13

    • DOI

      10.1016/j.neures.2021.07.002

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Contribution of non-sensory neurons in visual cortical areas to visually guided decisions in the rat2021

    • Author(s)
      Yuma Osako, Tomoya Ohnuki, Yuta Tanisumi, Kazuki Shiotani, Hiroyuki Manabe, Yoshio Sakurai, Junya Hirokawa
    • Journal Title

      Current Biology

      Volume: -

    • DOI

      10.2139/ssrn.3732369

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dynamic coordination of the perirhinal cortical neurons supports coherent representations between task epochs2020

    • Author(s)
      Tomoya Ohnuki, Yuma Osako, Hiroyuki Manabe, Yoshio Sakurai, Junya Hirokawa
    • Journal Title

      Communications Biology

      Volume: 3 Issue: 1 Pages: 464-464

    • DOI

      10.1038/s42003-020-01129-3

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Reinforcement biases subsequent perceptual decisions when confidence is low: a widespread behavioral phenomenon2020

    • Author(s)
      Lak Armin、Hueske Emily、Hirokawa Junya、Masset Paul、Ott Torben、Urai Anne E、Donner Tobias H、Carandini Matteo、Tonegawa Susumu、Uchida Naoshige、Kepecs Adam
    • Journal Title

      eLife

      Volume: 9

    • DOI

      10.7554/elife.49834

    • Related Report
      2019 Research-status Report
  • [Journal Article] Frontal cortex neuron types categorically encode single decision variables2019

    • Author(s)
      Hirokawa Junya、Vaughan Alexander、Masset Paul、Ott Torben、Kepecs Adam
    • Journal Title

      Nature

      Volume: 576 Issue: 7787 Pages: 446-451

    • DOI

      10.1038/s41586-019-1816-9

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Dynamic recruitment of functional clusters in orbitofrontal cortex during a complex decision-making task2021

    • Author(s)
      大貫朋哉
    • Organizer
      第44回日本神経科学大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ignificant contributions of non-sensory neurons to visually-guided decision-making in the visualcortical area.2021

    • Author(s)
      大迫優真
    • Organizer
      第44回日本神経科学大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] State representation of non-sensory neuron in the visual cortical area.2021

    • Author(s)
      大迫優真
    • Organizer
      51st Society for Neuroscience Annual Meeting
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 眼窩前頭皮質は意思決定に関する情報を投射タイプ特異的に符号する2020

    • Author(s)
      廣川 純也
    • Organizer
      第43回日本神経科学大会
    • Related Report
      2020 Research-status Report
  • [Presentation] ラット視覚皮質における内的な感覚状態のポピュレーション表現2020

    • Author(s)
      大迫 優真
    • Organizer
      第43回日本神経科学大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 選択方向の神経表象は嗅周皮質における神経細胞の動的協調によってイベント間で保持される2020

    • Author(s)
      大貫 朋哉
    • Organizer
      第43回日本神経科学大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Orbitofrontal-to-striatal projection drives confidence-dependent choice bias.2019

    • Author(s)
      Hirokawa, J., Lak, A., Ott, T., Ohnuki, T, Osako, Y., Manabe, H., Sakurai, Y., Kepecs, A.
    • Organizer
      49th Society for Neuroscience Annual Meeting, Chicago (米国)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Distinct roles of primary, secondary visual cortex and posterior parietal cortex in visually-guided decision-making.2019

    • Author(s)
      Osako, Y., Ohnuki, T., Manabe, H., Sakurai, Y. and Hirokawa, J.
    • Organizer
      49th Society for Neuroscience Annual Meeting, Chicago (米国)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Dynamic encoding of choice-target information in the perirhinal cortex.2019

    • Author(s)
      Ohnuki, T., Osako, Y., Sakurai, Y. and Hirokawa, J.
    • Organizer
      49th Society for Neuroscience Annual Meeting, Chicago (米国)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Discrete subpopulations in Orbitofrontal cortex represent distinct decision variables.2019

    • Author(s)
      Hirokawa, J.
    • Organizer
      Systems Neuroscience and Decision Making (Arhus, Denmark)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Remarks] 適切な意思決定を可能にする神経回路を同定

    • URL

      https://www.jnss.org/news-topics?id=200121-03

    • Related Report
      2021 Annual Research Report
  • [Remarks] 視覚野は外界情報だけでなく、動物の内的な状態も表現する

    • URL

      https://www.jnss.org/news-topics_8?id=210623-03&u=773a54b2d59b058f3becf51512fb016e

    • Related Report
      2021 Annual Research Report
  • [Remarks] 適切な意思決定を可能にする神経回路を特定

    • URL

      https://www.u-presscenter.jp/2019/12/post-42824.html

    • Related Report
      2019 Research-status Report

URL: 

Published: 2019-04-18   Modified: 2024-01-30  

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