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Neural mechanisms underlying habitual memory formation in insect microbrains

Research Project

Project/Area Number 19H03261
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 InstitutionHokkaido University

Principal Investigator

Mizunami Makoto  北海道大学, 理学研究院, 教授 (30174030)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2021: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2020: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Fiscal Year 2019: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
Keywords学習 / 昆虫 / 報酬 / オクトパミン / コオロギ / 報酬価値引き下げ / 行動の自動遂行 / パブロフ型条件付け / 微小脳 / 習慣記憶 / パブロフ型条件づけ / 古典的条件付け / 匂い学習
Outline of Research at the Start

動物の条件づけでは、「動物は、無条件刺激(報酬)を欲する場合に、条件反応を示す」というのが一般的な原則である。ところが研究代表者は最近、コオロギにパブロフ型の条件づけ訓練を繰り返すと、動物が報酬を必要としない場合にも条件反応を行うようになることを発見した。繰り返し訓練による同様な学習行動の変容は、哺乳類のオペラント条件づけでは以前から報告され、「習慣形成」と呼ばれる。しかし、パブロフ型条件づけでの習慣記憶の形成はこれまで報告がなかった。本研究では、昆虫のパブロフ型条件づけ訓練の繰り返しで形成される記憶の性質とその神経機構を明らかにし、習慣記憶の動物の系統を超えた普遍的な特徴を明らかにする。

Outline of Final Research Achievements

In Pavlovian conditioning in crickets, a conditioned response (CR) to a conditioned stimulus (CS) is sensitive to devaluation of the unconditioned stimulus (US) early in training but it becomes insensitive to current value of US after extended training. Similar effect of extended training, called “habit formation”, has been found in instrumental conditioning in mammals, but not in Pavlovian conditioning in any animals. In this study I showed that the nature of memory after extended Pavlovian training in crickets fundamentally differs from that in instrumental conditioning in mammals concerning context specificity and effect of extinction trials. Moreover, I established taste aversion learning procedure that is useful for the study of the habit formation and developed methods to monitor activities of octopamine neurons that I have shown to play critical roles in habit formation.

Academic Significance and Societal Importance of the Research Achievements

本研究は私がコオロギを用いて発見したパブロフ型条件付けのにおける習慣形成について、その性質が従来調べられてきた哺乳類のオペラント学習における習慣形成とは非常に異なる性質を持つことを初めて明らかにしたものであり、動物の学習系の理解に大きく貢献するものであり、ヒトの学習訓練で起こる習慣形成の理解についても新たな洞察を与えた。昆虫の学習系に哺乳類の学習系にも勝るとも劣らない精妙な仕組みがあることを解明した本研究は、社会的にも大きなインパクトが予想される。

Report

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

    (27 results)

All 2021 2020 2019 2018 Other

All Int'l Joint Research (1 results) Journal Article (7 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 7 results,  Open Access: 3 results) Presentation (15 results) (of which Int'l Joint Research: 4 results,  Invited: 2 results) Book (2 results) Remarks (2 results)

  • [Int'l Joint Research] Universidad Publica de Navarra(スペイン)

    • Related Report
      2020 Annual Research Report
  • [Journal Article] What Is Learned in Pavlovian Conditioning in Crickets? Revisiting the S-S and S-R Learning Theories2021

    • Author(s)
      Mizunami Makoto
    • Journal Title

      Frontiers in Behavioral Neuroscience

      Volume: 15 Pages: 661225-661225

    • DOI

      10.3389/fnbeh.2021.661225

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Reduction of contextual control of conditioned responses by extended Pavlovian training in an insect2020

    • Author(s)
      Sato Misato、Alvarez Beatriz、Mizunami Makoto
    • Journal Title

      Learning & Memory

      Volume: 28 Issue: 1 Pages: 17-23

    • DOI

      10.1101/lm.052100.120

    • NAID

      120007181811

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Appetitive and aversive social learning with living and dead conspecifics in crickets2020

    • Author(s)
      Ebina Hiroki、Mizunami Makoto
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1

    • DOI

      10.1038/s41598-020-66399-7

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Separate but interactive parallel olfactory processing streams governed by different types of GABAergic feedback neurons in the mushroom body of a basal insect.2019

    • Author(s)
      Takahashi N, Nishino H, Domae M, Mizunami M.
    • Journal Title

      J. Neurosci.

      Volume: 39 Issue: 44 Pages: 8690-8704

    • DOI

      10.1523/jneurosci.0088-19.2019

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Functional unification of sex pheromone-receptive glomeruli in an invasive cockroach derived from the genus Periplaneta.2019

    • Author(s)
      Domae M., Iwasaki M., Mizunami M. and Nishino H.
    • Journal Title

      Neurosci. Lett.

      Volume: 708 Pages: 134320-134320

    • DOI

      10.1016/j.neulet.2019.134320

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of behavioural automaticity by extended Pavlovian training in an insect2019

    • Author(s)
      Mizunami M, Hirohata S, Sato A, Arai R, Terao K, Sato M, Matsumoto Y.
    • Journal Title

      Proc. Biol. Sci.

      Volume: 286 Issue: 1894 Pages: 21182132-21182132

    • DOI

      10.1098/rspb.2018.2132

    • NAID

      120006727605

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Tyrosine hydroxylase-immunoreactive neurons in the mushroom body of the field cricket, Gryllus bimaculatus2018

    • Author(s)
      Hamanaka Yoshitaka、Mizunami Makoto
    • Journal Title

      Cell and Tissue Research

      Volume: 376 Issue: 1 Pages: 1-1

    • DOI

      10.1007/s00441-018-2969-9

    • NAID

      120006820172

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] Habit formation by extended Pavlovian training in crickets.2021

    • Author(s)
      Makoto Mizunami
    • Organizer
      2nd Virtual Symposium of Comparative Psychology
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Overexpectation and its spontaneous recovery in crickets2021

    • Author(s)
      Kanta Terao, Yukihisa Matsumoto, Beatriz Alvarez, Makoto Mizunami
    • Organizer
      2nd Virtual Symposium of Comparative Psychology
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ワモンゴキブリの性フェロモン受容体の同定2021

    • Author(s)
      立石康介,渡邊崇之,西野浩史,水波誠,渡邉英博
    • Organizer
      日本動物学会米子大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Conditioned taste avoidance in the cricket Gryllus bimaculatus.2021

    • Author(s)
      Hui Lyu, Makoto Mizunami.
    • Organizer
      日本動物学会米子大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Sex pheromone receptors in the American cockroach.2021

    • Author(s)
      Kosuke Tateishi, Takayuki Watanabe, Hiroshi Nishino, Makoto Mizunami, Hidehiro Watanabe
    • Organizer
      JSCPB 2021
    • Related Report
      2021 Annual Research Report
  • [Presentation] 予測誤差理論のさらなる検証:コオロギの連合学習におけるoverexpectation現象2020

    • Author(s)
      寺尾 勘太、Beatriz Alvarez, 水波誠
    • Organizer
      日本動物学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 過剰予期効果をコオロギの連合学習で検証する2020

    • Author(s)
      寺尾勘太、Alvarez Beatriz, 松本幸久、水波誠
    • Organizer
      日本基礎心理学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ワモンゴキブリの嗅覚共受容体 (Orco)の同定と機能解析2020

    • Author(s)
      立石康介、渡邊崇之、西野浩史、水波誠、渡邊英博
    • Organizer
      日本応用動物昆虫学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Immediate-early promoter-driven transgenic reporting system for 3-D single-cell resolution activity mapping in the cricket nervous systems.2019

    • Author(s)
      Takayuki Watanabe, Atsushi Ugajin, Makoto Mizunami,
    • Organizer
      1st Symposium on Invertebrate Neuroscience,Tihany, Hungary.
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 昆虫脳性決定機構の進化を探る~doublesex 遺伝子はコオロギ脳の性を決めるのか?2019

    • Author(s)
      渡邊崇之、水波誠
    • Organizer
      日本動物学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] フタホシコオロギ味覚嫌悪学習系の確立2019

    • Author(s)
      水波誠、佐藤貴光、呂恵、渡邊崇之
    • Organizer
      日本動物学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 様々な昆虫種におけるキノコ体ケニヨン細胞サブタイプの探索と比較解析2019

    • Author(s)
      鈴木敦己, 木下充代, 向井歩, 小口晃平, 水波誠, 蟻川謙太郎, 後藤慎介, 三浦徹, 久保健雄
    • Organizer
      日本分子生物学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Separate but interactive parallel olfactory processing streams governed by different types of GABAergic feedback neurons in the mushroom body of cockroaches.2019

    • Author(s)
      Naomi Takahashi, Hiroshi Nishino, Makoto Mizunami
    • Organizer
      日本比較生理生化学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Computational algorithms for associative learning in insects: Do they differ from those in mammals ?2019

    • Author(s)
      M.Mizunami
    • Organizer
      日本比較生理生化学会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] The design of memory systems in insects: Do they differ from that in mammals?2019

    • Author(s)
      Makoto Mizunami
    • Organizer
      Symposium on bioinspired design of advanced materials sponsored by American Society of Mechanical Engineers etc.
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Book] 動物の事典2020

    • Author(s)
      末光 隆志
    • Total Pages
      772
    • Publisher
      朝倉書店
    • ISBN
      9784254171662
    • Related Report
      2020 Annual Research Report
  • [Book] Encyclopedia of Animal Behavior 2nd Edition2019

    • Author(s)
      Jae Choe (editor)
    • Total Pages
      3048
    • Publisher
      Academic Press
    • ISBN
      9780128132517
    • Related Report
      2019 Annual Research Report
  • [Remarks] 水波研究室ホームページ

    • URL

      https://www.sci.hokudai.ac.jp/~mizunami/MICROB~2/

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
  • [Remarks]

    • URL

      https://www.sci.hokudai.ac.jp/~mizunami/MICROB~2/

    • Related Report
      2019 Annual Research Report

URL: 

Published: 2019-04-18   Modified: 2023-01-30  

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