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The neural mechanism of relief in animals

Research Project

Project/Area Number 19K21808
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 10:Psychology and related fields
Research InstitutionOsaka University

Principal Investigator

Takaaki Ozawa  大阪大学, 蛋白質研究所, 助教 (90625352)

Project Period (FY) 2019-06-28 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Keywords安心感 / ドーパミン / マウス / イメージング / 光遺伝学
Outline of Research at the Start

快・不快は我々の意思決定の基本となる情動であり,これまでその神経メカニズムに関する研究が精力的に行われてきた。ストレスからの解放,すなわち安心感は,我々の行動を左右する重要な情動の一つであり,ストレスと関連した行動的不適応とも密接に関連している。本研究は,①動物モデルを用いて「安心感」を測定する行動課題を確立し,②脳内報酬系であり,ストレス耐性にも重要な役割を果たすドーパミンに焦点を当て,「安心感」を司る神経メカニズムを明らかにする。

Outline of Final Research Achievements

Pleasure and pain are fundamental emotions to regulate our decision-making. Relief is another important positive emotion that is defined as the removal/attenuation of expected/ongoing aversion. Although previous studies have revealed the neural mechanisms underlying pleasure and pain, that of relief has been largely unknown. In the present study, we established the behavioral paradigm, which is based on the pavlovian conditioning, to assess relief-like behavior in mice. By taking advantage of this task, we also found that the dopaminergic circuit is activated when mice feel relief.

Academic Significance and Societal Importance of the Research Achievements

本研究が着目する神経伝達物質ドーパミンは,脳内報酬系として快情動を制御しているばかりでなく,粘り強い行動の持続やストレス耐性にも重要な役割を果たすことが示されてきた。本研究が明らかにした,安心感におけるドーパミンの積極的役割は,①安心感と快情動の関係性,②安心感のストレス耐性における重要性,を解明する上で重要な知見である。また,ストレスへの鋭敏化によって特徴づけられる精神疾患の治療法開発にも貢献することが期待される。

Report

(3 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • Research Products

    (12 results)

All 2021 2020 2019

All Journal Article (3 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (8 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results) Book (1 results)

  • [Journal Article] An Introduction to Optogenetics: Novel Tools for Physiological Psychology Research2020

    • Author(s)
      OZAWA Takaaki
    • Journal Title

      Japanese Journal of Physiological Psychology and Psychophysiology

      Volume: 38 Issue: 1 Pages: 48-58

    • DOI

      10.5674/jjppp.2004si

    • NAID

      130008000325

    • ISSN
      0289-2405, 2185-551X
    • Year and Date
      2020-04-30
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] D-Cycloserine reverses scopolamine-induced object and place memory deficits in a spontaneous recognition paradigm in rats2019

    • Author(s)
      Ozawa Takaaki、Yamada Kazuo、Ichitani Yukio
    • Journal Title

      Pharmacology Biochemistry and Behavior

      Volume: 187 Pages: 172798-172798

    • DOI

      10.1016/j.pbb.2019.172798

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Neural circuits in goal-directed and habitual behavior: Implications for circuit dysfunction in obsessive-compulsive disorder.2019

    • Author(s)
      Simmler LD, Ozawa T.
    • Journal Title

      Neurochemistry International

      Volume: 129 Pages: 104464-104464

    • DOI

      10.1016/j.neuint.2019.104464

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] うま味物質の持つ塩味嗜好性増強効果における脳内報酬系の関与2021

    • Author(s)
      小澤 貴明,疋田 貴俊
    • Organizer
      大阪大学蛋白質研究所セミナー「食行動の脳内基盤と分子機構」
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] マウスにおける塩味とうま味の相乗作用2020

    • Author(s)
      小澤貴明
    • Organizer
      第5回 食欲・食嗜好の分子・神経基盤研究会
    • Related Report
      2020 Annual Research Report
  • [Presentation] うま味物質の持つ塩味嗜好性増強効果-マウスにおける検討-2020

    • Author(s)
      柴田智弘,疋田貴俊,小澤貴明
    • Organizer
      日本味と匂学会 第54回大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 恐怖条件づけの消去におけるアデノシン受容体阻害薬の影響2020

    • Author(s)
      加瀬田 晃大,小澤 貴明,一谷 幸男,山田 一夫
    • Organizer
      第43回日本神経科学大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 恐怖学習を制御するネガティブフィードバック神経回路2019

    • Author(s)
      小澤貴明
    • Organizer
      蛋白研セミナー「精神疾患の分子・回路病態研究の最前線」
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 学習の速さと記憶促進薬の効果には個体差がある ―空間記憶の記銘におけるラットの個体差とD-Cycloserineの効果―2019

    • Author(s)
      下田 翔太,五十嵐 優香,小澤 貴明,山田 一夫,一谷 幸男
    • Organizer
      日本心理学会第83回大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Caffeine facilitates fear extinction in rats2019

    • Author(s)
      Kodai Kaseda, Takaaki Ozawa, Yukio Ichitani, Kazuo Yamada
    • Organizer
      動物心理学会第79回大会
    • Related Report
      2019 Research-status Report
  • [Presentation] The effects of serotonergic lesion of dorsal raphe nucleus (DRN) and median raphe necleus (MRN) on fear extinction in rats2019

    • Author(s)
      S. NAKAZAWA, T. OZAWA, Y. ICHITANI, K. YAMADA
    • Organizer
      Neuroscinece 2019, Annual meeting of Society for Neuroscinece
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Book] もっとよくわかる!食と栄養のサイエンス2021

    • Author(s)
      佐々木 努
    • Total Pages
      215
    • Publisher
      羊土社
    • ISBN
      9784758122092
    • Related Report
      2020 Annual Research Report

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Published: 2019-07-04   Modified: 2022-01-27  

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