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Neural mechanisms of communication coordinating vocalization and body movements in courtship behavior of songbirds

Research Project

Project/Area Number 20K16472
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 51020:Cognitive and brain science-related
Research InstitutionTeikyo University

Principal Investigator

Mori Chihiro  帝京大学, 薬学部, 助教 (00772253)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords鳴禽 / コミュニケーション / 聴覚 / 求愛行動 / 発声行動 / 発声学習
Outline of Research at the Start

動物は音声の他に視覚や嗅覚など様々な感覚信号を用い、時にはそれらを組み合わせてコミュニケーションを行う。その中でも小鳥(鳴禽類)は、複雑な時系列構造の音声を親鳥から聞いて記憶し、学習により獲得する。このような音声と身体運動を組み合わせたコミュニケーションの制御機構は未解明である。鳴禽類の音声とその学習・制御に関わる脳領域は、ヒトの言語獲得とそれに関わる脳領域と類似しており、ヒトの言語獲得機構解明のモデルとして精力的に研究が進められている。本研究は、鳴禽類ブンチョウの求愛行動を対象に発声学習・制御に関与する脳領域が歌と身体運動の協調に関与し、コミュニケーション行動を調節するとの仮説を検証する。

Outline of Final Research Achievements

Many animal species communicate by combining vocalizations and multimodal signals, as in human speech with body gestures. Songbirds acquire songs composed of complex sound sequences through learning. The purpose of this study was to elucidate the neural mechanisms that control communication combining song and body movements and the neural mechanisms of processing complex sound sequences in songbirds. Behavioral analysis revealed the possibility that song and jumping are controlled in a coordinated manner during courtship behavior. We also showed that local inhibition of the motor control region of song did not affect jumping. In neurophysiological experiments, we found mismatch negativity like responses in higher-order auditory area elicited by changes in regular pattern possibly reflect deviance detection.

Academic Significance and Societal Importance of the Research Achievements

本研究では、鳴禽類の求愛行動を自動で記録・追跡可能にしたことで、学習により獲得された歌と跳躍運動が求愛という特定の社会的文脈でいかに協調されているかについて、その一端を明らかにできた。また、鳴禽類の高次聴覚領域において聴覚記憶処理に関わるミスマッチ聴覚応答を計測したことで、今後その神経機構を調べることにより、逸脱検出だけでなく、ヒトの構文処理との比較可能な視点を提供できる研究へと発展されることが期待できる。

Report

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

    (5 results)

All 2022 2021

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (3 results)

  • [Journal Article] Mismatch Responses Evoked by Sound Pattern Violation in the Songbird Forebrain Suggest Common Auditory Processing With Human2022

    • Author(s)
      Mori Chihiro、Okanoya Kazuo
    • Journal Title

      Frontiers in Physiology

      Volume: 13 Pages: 822098-822098

    • DOI

      10.3389/fphys.2022.822098

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Gene expression profiles of the muscarinic acetylcholine receptors in brain regions relating to filial imprinting of newly-hatched domestic chicks2022

    • Author(s)
      Mori Chihiro、Aoki Naoya、Fujita Toshiyuki、Yamaguchi Shinji、Matsushima Toshiya、Homma Koichi J.
    • Journal Title

      Behavioural Brain Research

      Volume: 420 Pages: 113708-113708

    • DOI

      10.1016/j.bbr.2021.113708

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Identification of the brain area associated with intrinsic motivation for singing in zebra finches2022

    • Author(s)
      森千紘, Yunbok Kim, 青木直哉, 本間光一, 小島哲
    • Organizer
      NEURO2022(第45回日本神経科学大会)
    • Related Report
      2022 Annual Research Report
  • [Presentation] 歌の感覚学習における社会的関係の影響2021

    • Author(s)
      森千紘
    • Organizer
      日本動物学会 第92回 オンライン米子大会 サテライトシンポジウム
    • Related Report
      2021 Research-status Report
  • [Presentation] Gene expression profiles of the muscarinic acetylcholine receptors in brain of newly-hatched domestic chicks2021

    • Author(s)
      森千紘、青木直哉、藤田俊之、山口真二、本間光一
    • Organizer
      第44回日本神経科学大会・CJK第1回国際会議
    • Related Report
      2021 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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