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Neural circuits involved in switching escape/attack behavior

Research Project

Project/Area Number 21K07265
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 51020:Cognitive and brain science-related
Research InstitutionDoshisha University (2023)
Jikei University School of Medicine (2021-2022)

Principal Investigator

Takada (Morishima) Mieko  同志社大学, 脳科学研究科, 准教授 (30435531)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords扁桃体 / 興奮性細胞 / 興奮-抑制バランス / 抑制性細胞 / 腕傍核 / 神経回路 / 視床下部腹内側核 / 情動 / フィードバック抑制 / 逃避 / 攻撃
Outline of Research at the Start

視床下部腹内側核は、攻撃か逃避か、という言葉にあるような行動に関わる機能を持つことが知られ、腕傍核は視床下部腹内側核に軸索投射し、ストレスや脅威の環境下で生命維持に必要な情報処理を行う。一方で、腕傍核は扁桃体にも軸索を投射し、嫌悪等の情動制御を行うことが知られている。そこで腕傍核を中心とした視床下部腹内側核および扁桃体の神経回路ネットワークが逃避か攻撃かのスイッチングに関わるのはないかと仮説を立て、逃避行動と攻撃行動のスイッチングに関する研究を行う。

Outline of Final Research Achievements

To clarify the information processing system involved in switching between escape/attack behaviors, we focused on the parabrachial nucleus, which projects to the ventral medial nucleus of the hypothalamus. Life-sustaining information is sent from the parabrachial nucleus to c via axons under stressful or threatening environments. On the other hand, the parabrachial nucleus also projects axons to the central nucleus of the amygdala, which is known to send information related to emotions such as aversion. In this study, we investigated excitatory neurons in the lateral amygdala, which is known to provide excitatory input to the central nucleus of the amygdala. We found that there are two types of excitatory neurons with different responses in aversive learning, and that they have different information processing systems.

Academic Significance and Societal Importance of the Research Achievements

恐怖を感じる際に活動する扁桃体で、学習後に情報伝達の仕組みが変化することを明らかにした。嫌悪学習を行ったマウスの脳スライスを用いて、扁桃体の神経細胞には2つのタイプがあり、恐怖を学習する際に異なる情報処理が行われていることが明らかになった。本成果は、心的外傷後ストレス障害 (PTSD)等のメカニズムの解明に大きく貢献することが期待される。

Report

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

    (6 results)

All 2024 2023 2022 2021

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (2 results)

  • [Journal Article] All-optical presynaptic plasticity induction by photoactivated adenylyl cyclase targeted to axon terminals2024

    • Author(s)
      Nagase Masashi、Nagashima Takashi、Hamada Shun、Morishima Mieko、Tohyama Suguru、Arima-Yoshida Fumiko、Hiyoshi Kanae、Hirano Tomoha、Ohtsuka Toshihisa、Watabe Ayako M.
    • Journal Title

      Cell Reports Methods

      Volume: 4 Issue: 4 Pages: 100740-100740

    • DOI

      10.1016/j.crmeth.2024.100740

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Excitatory subtypes of the lateral amygdala neurons are differentially involved in regulation of synaptic plasticity and excitation/inhibition balance in aversive learning in mice2023

    • Author(s)
      Morishima Mieko、Matsumura Sohta、Tohyama Suguru、Nagashima Takashi、Konno Ayumu、Hirai Hirokazu、Watabe Ayako M.
    • Journal Title

      Frontiers in Cellular Neuroscience

      Volume: 17 Pages: 1-14

    • DOI

      10.3389/fncel.2023.1292822

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Parabrachial-to-parasubthalamic nucleus pathway mediates fear-induced suppression of feeding in male mice2022

    • Author(s)
      Nagashima Takashi、Tohyama Suguru、Mikami Kaori、Nagase Masashi、Morishima Mieko、Kasai Atsushi、Hashimoto Hitoshi、Watabe Ayako M.
    • Journal Title

      Nature Communications

      Volume: 13 Issue: 1 Pages: 1-17

    • DOI

      10.1038/s41467-022-35634-2

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Corticocortical innervation subtypes of layer 5 intratelencephalic cells in the murine secondary motor cortex2022

    • Author(s)
      Im Sanghun、Ueta Yoshifumi、Otsuka Takeshi、Morishima Mieko、Youssef Mohammed、Hirai Yasuharu、Kobayashi Kenta、Kaneko Ryosuke、Morita Kenji、Kawaguchi Yasuo
    • Journal Title

      Cerebral Cortex

      Volume: 33 Issue: 1 Pages: 50-67

    • DOI

      10.1093/cercor/bhac052

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Distinct subtypes of the mouse lateral amygdala neurons in the fear memory formation2021

    • Author(s)
      Sota Matsumura, Mieko Morishima, Suguru Tohyama, Ayako M. Watabe
    • Organizer
      The 99th Annual Meeting of the Physiological Society of Japan, Sendai, Kawauchi-Kita Campus, Tohoku University
    • Related Report
      2021 Research-status Report
  • [Presentation] Regulations of aversive learning and feeding behavior by the parabrachial- hypothalamic pathway2021

    • Author(s)
      Takashi NAGASHIMA, Masashi NAGASE, Kaori MIKAMI, Suguru TOHYAMA, Mieko MORISHIMA, Ayako M. WATABE
    • Organizer
      第44回日本神経科学大会
    • Related Report
      2021 Research-status Report

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

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