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The neural mechanism of patience brought about by confidence that "behavior changes when the mind changes"

Research Project

Project/Area Number 21H02530
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 44050:Animal physiological chemistry, physiology and behavioral biology-related
Research InstitutionOkinawa Institute of Science and Technology Graduate University

Principal Investigator

Miyazaki Kayoko  沖縄科学技術大学院大学, 神経計算ユニット, グループリーダー (80426577)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥14,690,000 (Direct Cost: ¥11,300,000、Indirect Cost: ¥3,390,000)
Fiscal Year 2023: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥11,960,000 (Direct Cost: ¥9,200,000、Indirect Cost: ¥2,760,000)
KeywordsSerotonin / Patience / Fiber photometry / セロトニン / ファイバーフォトメトリー / 将来報酬 / 報酬待機行動 / 確信
Outline of Research at the Start

目標のために今は辛抱、という場面で未来を信じてじっとその時を待つか、もうだめだと諦めるのか、こんな意思決定を迫られる場面は日常の中で数多く存在します。私達がこれまでに取り組んできた研究から、将来の報酬をじっと待つ辛抱強さを促す重要な神経伝達物質がセロトニンであることが分かってきました。
このセロトニン神経に着目し、広範囲に分布する脳内のどの領域で、どのように活動することでこの辛抱強さが生じるのかを詳細に調べていきます。本研究では特に「うまくいくと信じることでより辛抱強くなれる(心が変われば行動が変わる)」その神経メカニズムに迫ります。

Outline of Final Research Achievements

Ungai Soten" is a four-character idiom that means "Above the rain clouds, there is a blue sky," or in other words, if you are patient and work hard, things will turn out well. What kind of brain mechanism generates the optimistic thought that there is a blue sky above us and that things will turn out well? Based on our previous research, we believes that the key lies in the function of the neurotransmitter serotonin. In this study, we experimentally examine the dynamics of serotonin networks in freely behaving mice as they patiently wait for a reward or give up in an uncertain environment where the probability of reward, the time to reward, and the amount of reward vary.

Academic Significance and Societal Importance of the Research Achievements

環境適応のための脳機能を動的に理解することは、精神疾患の原因解明のために重要です。精神機能との関連性が高いセロトニンが環境変化に応じた目的指向性行動において、神経ネットワークレベルでどのように作用するのかについて実験的に検証した本研究の社会的意義としてこの点が挙げられると考えます。

Report

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

    (8 results)

All 2024 2023 2021

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

  • [Journal Article] The differential effects of optogenetic serotonergic manipulation on sustained motor action and stationary waiting for future rewards in mic2024

    • Author(s)
      Taira M, Miyazaki KW, Miyazaki K, Nisho M, Miyake T, Yamanaka A, Tanaka KF, Doya K
    • Journal Title

      Bio Rxiv

      Volume: -

    • DOI

      10.1101/2024.05.17.594118

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Increased serotonin prevents compulsion in addiction2021

    • Author(s)
      Miyazaki K, Miyazaki K W
    • Journal Title

      Science

      Volume: 373 Issue: 6560 Pages: 1197-1198

    • DOI

      10.1126/science.abl6285

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Serotonergic Modulation of Cognitive Computations2021

    • Author(s)
      Kenji Doya, Kayoko W. Miyazaki, Katsuhiko Miyazaki
    • Journal Title

      Current opinion of Behavioral Sciences

      Volume: Volume 38, April 2021 Pages: 116-123

    • DOI

      10.1016/j.cobeha.2021.02.003

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Serotonin mechanism for regulating reward waiting behavior2024

    • Author(s)
      Miyazaki KW, Doya K, Miyazaki K
    • Organizer
      101st Annual Meeting of the Physiological Society of Japan
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] The effect of optogenetic serotonergic activation on sustained motor action in a lever pressing task.2023

    • Author(s)
      Chen J, Taira M, Miyazaki KW, Miyazaki K, Nishio M, Yamanaka A, Tanaka K, Doya K
    • Organizer
      46th Annual Meeting of the Japan Neuroscience Society
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] SEROTONIN NEURONS IN THE DORSAL RAPHE NUCLEUS ENCODE PROBABILITY RATHER THAN VALUE OF FUTURE REWARDS2023

    • Author(s)
      Miyazaki KW, Doya K, Miyazaki K
    • Organizer
      IBRO International Brain Research Organization
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] セロトニンによる報酬待機行動の制御機構2023

    • Author(s)
      宮崎勝彦 宮崎佳代子 銅谷賢治
    • Organizer
      日本科学振興協会 第1回総会・キックオフミーティング
    • Related Report
      2022 Annual Research Report
  • [Presentation] Serotonin mechanism for regulating reward waiting behavior2023

    • Author(s)
      宮崎勝彦
    • Organizer
      日本生理学会第100回記念大会
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited

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

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