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Sensitive period for sensorimotor learning: behavioral neurophysiology of bird song acquisition

Research Project

Project/Area Number 23K21848
Project/Area Number (Other) 21H03781 (2021-2023)
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeMulti-year Fund (2024)
Single-year Grants (2021-2023)
Section一般
Review Section Basic Section 90030:Cognitive science-related
Research InstitutionNational Institute of Advanced Industrial Science and Technology (2023-2024)
The University of Tokyo (2021-2022)

Principal Investigator

Tachibana Ryosuke  国立研究開発法人産業技術総合研究所, 情報・人間工学領域, 主任研究員 (50610929)

Co-Investigator(Kenkyū-buntansha) 森 千紘  帝京大学, 薬学部, 助教 (00772253)
柳原 真  帝京大学, 先端総合研究機構, 講師 (60392156)
戸張 靖子  麻布大学, 獣医学部, 准教授 (90453919)
Project Period (FY) 2021-04-01 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
Fiscal Year 2024: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2023: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2022: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2021: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Keywords発声学習 / 敏感期 / 可塑性 / 感覚運動学習
Outline of Research at the Start

可塑性が著しい時期を敏感期という。感覚フィードバックに基づき運動を修正する「感覚運動学習」の敏感期を制御するメカニズム解明を目指し、鳴禽類の歌学習をモデルとした神経生理学的研究をおこなう。鳴禽の歌の感覚運動学習に伴う行動可塑性は、若い鳥では著しく高く、成鳥になると大幅に減少する。このことは発達にともなって感覚運動学習の敏感期が終了することを示している。本研究は、この行動可塑性に対応する神経回路変化の実体と、敏感期の終了を制御する生理化学因子を明らかにすることを目的とする。

Outline of Final Research Achievements

We investigated the mechanisms that regulate sensitive periods of sensorimotor learning, which is the ability to modify motor output based on sensory feedback, using song learning system in songbirds as a model. Juvenile birds were raised in continuous lound noise to prevent them from hearing their own vocalizations. When returned to a quiet environment, song learning, which would normally have been completed at that time, resumed and resulted in successful song acquisition. Detailed acoustic analyses revealed that the typical two-month learning process was compressed: target song elements emerged rapidly within approximately two weeks, with reduced variability and increased sequence complexity. These changes were likely accompanied by alterations in neural activity and circulating hormone levels. We also developed software to automatically analyze song development, providing a foundation for future research.

Academic Significance and Societal Importance of the Research Achievements

これまで感覚学習の研究が中心だった敏感期の議論を感覚運動学習へと拡張し、その操作可能性を示した。このことは、脳の可塑性研究を運動制御領域まで広げることで、言語発達や楽器演奏などの学習を神経メカニズムから説明する新しい枠組みを提供しうる。また、敏感期のタイミングとその延長可能性を示したことで、子どもの言語・音楽教育やスポーツ・リハビリのトレーニング開始時期を科学的に設計できる可能性につながった。

Report

(4 results)
  • 2024 Final Research Report ( PDF )
  • 2023 Annual Research Report
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (11 results)

All 2023 2022 2021

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (7 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Relationship between parental care and vocalization in songbirds2023

    • Author(s)
      Ryosuke O. Tachibana
    • Journal Title

      Japanese Journal of Animal Psychology

      Volume: 73 Issue: 2 Pages: 99-105

    • DOI

      10.2502/janip.73.2.8

    • ISSN
      0916-8419, 1880-9022
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Chronic exposure of female mice to selective serotonin reuptake inhibitors during lactation induces vocal behavior deficits in pre-weaned offspring2023

    • Author(s)
      Lan Ziguo、Tachibana Ryosuke O.、Kanno Kouta
    • Journal Title

      Pharmacology Biochemistry and Behavior

      Volume: 230 Pages: 173606-173606

    • DOI

      10.1016/j.pbb.2023.173606

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Song-related brain auditory activity in Bengalese finches as examined by immediate early gene expressions: Comparison of arousal states and the correlational analyses between brain regions2023

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

      Neuroscience Research

      Volume: - Pages: 56-62

    • DOI

      10.1016/j.neures.2023.01.014

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Neural correlates of vocal initiation in the VTA/SNc of juvenile male zebra finches2021

    • Author(s)
      Yanagihara Shin、Ikebuchi Maki、Mori Chihiro、Tachibana Ryosuke O.、Okanoya Kazuo
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 22388-22388

    • DOI

      10.1038/s41598-021-01955-3

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 騒音暴露による聴覚フィードバック阻害がさえずり発達に与える影響2023

    • Author(s)
      橘 亮輔, 森 千紘, 柳原 真, 戸張 靖子
    • Organizer
      日本音響学会聴覚研究会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 社会的相互作用にもとづく小鳥の発声学習を支える神経メカニズム2023

    • Author(s)
      柳原真、池渕万季、森千紘、橘亮輔、岡ノ谷一夫
    • Organizer
      第94回日本動物学会(山形)「動物学会シンポジウム:動物の社会性行動とその発達のしくみを探る」
    • Related Report
      2023 Annual Research Report
  • [Presentation] Role of dopamine in the social enhancement of vocal learning in zebra finches.2023

    • Author(s)
      Maki Ikebuchi, Chihiro Mori, Ryosuke O. Tachibana, Kazuo Okanoya
    • Organizer
      IBAC2023 The XXVIII International Bioacoustics Congress
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] さえずりの発達過程:騒音暴露による学習阻害からの回復2023

    • Author(s)
      橘 亮輔, 森 千紘, 柳原 真, 安部 志織, 川田 ゆい, 堀田 音, 戸張 靖子
    • Organizer
      日本音響学会聴覚研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] さえずり学習の数理モデル:雑音回避実験を対象として2022

    • Author(s)
      橘亮輔
    • Organizer
      日本音響学会聴覚研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Neural representation of vocal initiation in the zebra finch VTA/SNc2021

    • Author(s)
      Shin Yanagihara, Maki Ikebuchi, Chihiro Mori, Ryosuke O. Tachibana, and Kazuo Okanoya
    • Organizer
      第44回日本神経科学大会
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 小鳥の歌発声制御と音声コミュニケーションの発達2021

    • Author(s)
      橘亮輔
    • Organizer
      日本赤ちゃん学会 第21回学術集会 シンポジウム
    • Related Report
      2021 Annual Research Report

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Published: 2021-04-28   Modified: 2026-01-16  

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