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Dynamic information representation of prefrontal neurons

Research Project

Project/Area Number 20K07726
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 InstitutionTohoku Medical and Pharmaceutical University

Principal Investigator

Kazuhiro Sakamoto  東北医科薬科大学, 医学部, 准教授 (80261569)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywordsサル / 前頭前野 / 局所場電位(LFP) / 機能分化 / LFP / 行動計画課題 / 形操作課題 / 外側前頭前野 / 腹側部 / 背側部 / 神経活動 / 神経情報解読
Outline of Research at the Start

前頭前野は、実行機能(複雑な環境において目標達成のために行動を計画・実行する機能)の中心的役割を担う。それを裏付けるように応募者・坂本は、活動により表現される情報が最終目標から具体的行動目標に変化する細胞(目標遷移細胞)をサル前頭前野に発見した。本研究の目標は、①この変化が他の領野からの入力の変化でなく前頭前野自身の自律的変化であること、②変化する情報をどのように解読しうるのか、を検証することである。

Outline of Final Research Achievements

To elucidate the dynamic information representation of prefrontal neural activity, we analyzed task-dependent changes in the amplitude of local field potentials (LFPs) in the monkey lateral prefrontal cortex during an action planning task. In the dorsolateral prefrontal cortex, the gamma area (3 - 12 Hz) changed in response to the task rule (the correspondence between cognitive operations and movements, which switches after a fixed number of correct trials), whereas in the ventral prefrontal cortex, the delta-theta area (1 - 7 Hz) changed during the delay period, depending on the information to be retained in the working memory. These results indicate that functional differentiation of the lateral prefrontal cortex is also observed in the LFP.

Academic Significance and Societal Importance of the Research Achievements

外側前頭前野から記録されたLFPの課題依存性変化を検討した研究はあまり多くなく、その中でも背側部と腹側部の違いを示した研究はほとんど存在しない。その意味で、本研究成果は大きな学術的意義がある。行動計画課題の複雑さがそれらの機能さをあらわにしたと思われる。また、ヒト高次脳機能の優れたモデルであるサルで脳波のもととなる信号であるLFPについてこのような成果が出たことは、今後、高次脳機能障害の診断に行動計画課題と脳波を利用できる可能性を開いた。この点に社会的意義がある。

Report

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

    (23 results)

All 2023 2022 2021 2020

All Journal Article (9 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 5 results) Presentation (14 results) (of which Int'l Joint Research: 8 results,  Invited: 1 results)

  • [Journal Article] Shape and Rule Information Is Reflected in Different Local Field Potential Frequencies and Different Areas of the Primate Lateral Prefrontal Cortex2022

    • Author(s)
      Sakamoto Kazuhiro、Kawaguchi Norihiko、Mushiake Hajime
    • Journal Title

      Frontiers in Behavioral Neuroscience

      Volume: 16 Pages: 750832-750832

    • DOI

      10.3389/fnbeh.2022.750832

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Reinforcement Learning Model With Dynamic State Space Tested on Target Search Tasks for Monkeys: Extension to Learning Task Events2022

    • Author(s)
      Sakamoto Kazuhiro、Yamada Hinata、Kawaguchi Norihiko、Furusawa Yoshito、Saito Naohiro、Mushiake Hajime
    • Journal Title

      Frontiers in Computational Neuroscience

      Volume: 16 Pages: 784604-784604

    • DOI

      10.3389/fncom.2022.784604

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 高次運動野の機能分化を説明する動的状態空間強化学習モデル2022

    • Author(s)
      田村 尚己, 虫明 元, 坂本 一寛
    • Journal Title

      信学技報

      Volume: NC2022(42) Pages: 44-48

    • Related Report
      2022 Annual Research Report
  • [Journal Article] 創造性はいかに生まれるか ー複雑系科学と神経生理学からの解明2022

    • Author(s)
      坂本一寛
    • Journal Title

      大阪保険医雑誌

      Volume: 50(669) Pages: 4-8

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Reinforcement Learning Model With Dynamic State Space Tested on Target Search Tasks for Monkeys: Self-Determination of Previous States Based on Experience Saturation and Decision Uniqueness2022

    • Author(s)
      Katakura Tokio、Yoshida Mikihiro、Hisano Haruki、Mushiake Hajime、Sakamoto Kazuhiro
    • Journal Title

      Frontiers in Computational Neuroscience

      Volume: 15 Pages: 784592-784592

    • DOI

      10.3389/fncom.2021.784592

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Experience resetting in reinforcement learning facilitates exploration?exploitation transitions during a behavioral task for primates2021

    • Author(s)
      Sakamoto Kazuhiro、Okuzaki Hidetake、Sato Akinori、Mushiake Hajime
    • Journal Title

      bioRxiv

      Volume: 10.1101/2021.09.30. Pages: 462676-462676

    • DOI

      10.1101/2021.09.30.462676

    • Related Report
      2021 Research-status Report
    • Open Access
  • [Journal Article] Meta-analysis of cognitive and behavioral tests in leptin- and leptin receptor-deficient mice2021

    • Author(s)
      Watanabe Tomofumi、Sakamoto Kazuhiro
    • Journal Title

      Neuroscience Research

      Volume: 170 Pages: 217-235

    • DOI

      10.1016/j.neures.2020.11.002

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Multimodal Functional Analysis Platform: 2. Development of Si Opto-Electro Multifunctional Neural Probe with Multiple Optical Waveguides and Embedded Optical Fiber for Optogenetics2021

    • Author(s)
      Tanaka Tetsu、Katayama Norihiro、Sakamoto Kazuhiro、Osanai Makoto、Mushiake Hajime
    • Journal Title

      Advances in experimental medicine and biology

      Volume: 1293 Pages: 481-491

    • DOI

      10.1007/978-981-15-8763-4_32

    • ISBN
      9789811587627, 9789811587634
    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Differences in task-phase-dependent time-frequency patterns of local field potentials in the dorsal and ventral regions of the monkey lateral prefrontal cortex2020

    • Author(s)
      Sakamoto Kazuhiro、Kawaguchi Norihiko、Mushiake Hajime
    • Journal Title

      Neuroscience Research

      Volume: S0168 Pages: 1-11

    • DOI

      10.1016/j.neures.2019.12.016

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] メレオロジーと強化学習の接点2023

    • Author(s)
      坂本一寛
    • Organizer
      第100回 日本生理学会大会
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Higher brain function research needs good questions and theories2023

    • Author(s)
      Kazuhiro Sakamoto
    • Organizer
      NIPS workshop 2022 "Multi-disciplinary approach to understand neuronal network architecture for controlling motor actions"
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Multidimensional analysis of extracellular potentials in the cerebral cortex2022

    • Author(s)
      Kazuhiro Sakamoto
    • Organizer
      Nara Institute of Science and Technology, Information Science, Colloquium A
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 高次運動野機能分化を再現する動的状態空間強化学習モデル [1P-310]2022

    • Author(s)
      田村 尚己, 虫明 元, 坂本 一寛
    • Organizer
      NEURO2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 決定一意性、学習飽和度は状態空間拡張の適切さを規定する~動的状態空間強化学習モデルとディリクレモデルとの比較 [3P-261]2022

    • Author(s)
      坂本 一寛, 片倉 世雄, 虫明 元
    • Organizer
      NEURO2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 機械学習を超える脳~高次脳機能の神経生理学と計算論からの展望~2022

    • Author(s)
      坂本一寛
    • Organizer
      APSIPA BioSiPS Workshop 2022 in Kitami
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 高次運動野の機能分化を説明する動的状態空間強化学習モデル2022

    • Author(s)
      田村 尚己, 虫明 元, 坂本 一寛
    • Organizer
      電子情報通信学会 ニューロコンピューティング)研究専門委員会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Increased firing variability may be an early warning signal of bifurcation in neuronal networks: Validation in action planning-related cells of monkey prefrontal cortex2022

    • Author(s)
      Kazuhiro Sakamoto, Naohiro Saito, Shun Yoshida, Hajime Mushiake
    • Organizer
      Neuroscience 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A dynamic, economical, and robust coding scheme in the lateral prefrontal neurons of monkeys2022

    • Author(s)
      Kazuhiro Sakamoto, Naohiro Saito, Shun Yoshida, Hajime Mushiake
    • Organizer
      The 29th International Conference on Neural Information Processing
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 行動計画中の外側前頭前野局所場電位の変化2022

    • Author(s)
      坂本一寛
    • Organizer
      第99回日本生理学会大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 動的強化学習における中庸2021

    • Author(s)
      坂本一寛
    • Organizer
      第31回日本神経回路学会大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 形操作課題中のサル外側前頭前野シータ振動の課題関連性の多元解析2021

    • Author(s)
      坂本一寛, 川口典彦, 虫明元
    • Organizer
      第44回日本神経科学大会
    • Related Report
      2021 Research-status Report
  • [Presentation] シータおよびガンマ振動はサルの外側前頭前野内のサブ領域の違いを特徴付ける[2P-171]2020

    • Author(s)
      坂本 一寛, 川口 典彦, 虫明 元
    • Organizer
      第43回 日本神経科学大会 2020年7月30日
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] ターゲット探索課題を段階的に学習するニューラルネット強化学習モデル2020

    • Author(s)
      佐藤彰紀, 奥崎秀武, 虫明元, 坂本一寛
    • Organizer
      The 30th Annual Conference of the Japanese Neural Network Society (P1-19) 2020年12月
    • Related Report
      2020 Research-status Report

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

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