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意思決定のための価値の生成と統合の脳機能:数理モデルの提案とその実験検証

Publicly Offered Research

Project AreaElucidation of neural computation for prediction and decision making: toward better human understanding and applications
Project/Area Number 26120732
Research Category

Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

Allocation TypeSingle-year Grants
Review Section Complex systems
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

中原 裕之  国立研究開発法人理化学研究所, 脳科学総合研究センター, チームリーダー (10312282)

Project Period (FY) 2014-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥9,620,000 (Direct Cost: ¥7,400,000、Indirect Cost: ¥2,220,000)
Fiscal Year 2015: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2014: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Keywords社会知性 / 意思決定 / 強化学習 / 神経科学 / 価値 / 経済学
Outline of Annual Research Achievements

本研究の目的は、「意思決定における中心的変数である価値の形成と統合の脳機能の解明」である。より具体的には、価値予測を形成する脳内入力の表現学習(目的I)と社会的立場での複数の価値統合による行動選択(目的II)における脳機能の解明である。本年は、主に目的IIで、目的達成に向け、数理モデル提案と実験検証を合わせて行うことに留意し、研究を進めた。具体的には、価値意思決定の脳計算モデルを以下に記述する社会的意思決定の脳計算モデルに拡張し、それを用いてヒトfMRI実験での行動データと脳活動データに、モデル化解析を適用することで研究を行った。本年ではかなりの追加実験のデータ取得を行った。社会的意思決定を題材に、異なる起因で生成された複数の価値が統合されることで行動選択にいたるまでの脳の情報処理過程を検討した。具体的な実験課題としては、従来想定の価値意思決定試行に加え、他者への報酬に起因する価値付加試行を用意し、そこでの価値意思決定を用いた。さらにコントロール課題として、他者報酬に該当する使い報酬が自己の報酬である場合の価値付加試行も用いた。追加実験のデータを含めたモデル化解析によって、他者報酬に関わる脳活動が、脳内の意思決定の共通通貨である「価値」に関わる脳活動へ変換される脳内情報処理が明らかになってきた。そのプロセスとしては、「他者報酬固有の脳活動」→「自己報酬と他者報酬を共通に表現する脳活動」→「最終的な意思決定に関わる脳活動」が分かってきている。これらの成果を知らしめるために、学会などに積極的に発表を行ったところ、高い評価を得た。学術論文の投稿準備をかなりの程度進めることができた。

Research Progress Status

27年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

27年度が最終年度であるため、記入しない。

Report

(2 results)
  • 2015 Annual Research Report
  • 2014 Annual Research Report
  • Research Products

    (22 results)

All 2016 2015 2014 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (19 results) (of which Int'l Joint Research: 7 results,  Invited: 5 results) Remarks (1 results)

  • [Journal Article] Dual Reward Prediction Components Yield Pavlovian Sign- and Goal-Tracking.2014

    • Author(s)
      Kaveri S, Nakahara H
    • Journal Title

      PLOS ONE

      Volume: 9(10) Issue: 10 Pages: e108142-e108142

    • DOI

      10.1371/journal.pone.0108142

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Multiplexing signals in reinforcement learning with internal models and dopamine.2014

    • Author(s)
      Hiroyuki Nakahara
    • Journal Title

      Current Opinion in Neurobiology

      Volume: 25 Pages: 123-129

    • DOI

      10.1016/j.conb.2014.01.001

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Presentation] Making better decisions by predicting others' minds.2016

    • Author(s)
      Ma N, Harasawa N, Ueno K, Ichinohe N, Haruno M, Cheng K, Nakahara H.
    • Organizer
      脳と心のメカニズム 第16回冬のワークショップ 意思決定のダイナミクス
    • Place of Presentation
      ルスツリゾート(北海道・蛇田郡留寿都村)
    • Year and Date
      2016-01-06
    • Related Report
      2015 Annual Research Report
  • [Presentation] Neural mechanisms for deciding with rewards to others.2016

    • Author(s)
      Fukuda H, Ma N, Suzuki S, Harasawa N, Ueno K, Gardner JL, Ichinohe N, Haruno M, Cheng K, Nakahara H.
    • Organizer
      脳と心のメカニズム 第16回冬のワークショップ 意思決定のダイナミクス
    • Place of Presentation
      ルスツリゾート(北海道・蛇田郡留寿都村)
    • Year and Date
      2016-01-06
    • Related Report
      2015 Annual Research Report
  • [Presentation] Neurocomputational primitives for deciding with others' reward and choice.2015

    • Author(s)
      Nakahara H.
    • Organizer
      Department of Experimental Psychology
    • Place of Presentation
      Oxford, UK.
    • Year and Date
      2015-11-20
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] Neurocomputational primitives for deciding with others' reward and choice.2015

    • Author(s)
      Nakahara H.
    • Organizer
      Computational Psychiatry talk
    • Place of Presentation
      London, UK.
    • Year and Date
      2015-11-12
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] Making better decisions by predicting others' minds.2015

    • Author(s)
      Ma N, Harasawa N, Ueno K, Ichinohe N, Haruno M, Cheng K, Nakahara H.
    • Organizer
      International Symposium on Prediction and Decision Making 2015
    • Place of Presentation
      東京大学(東京都・文京区)
    • Year and Date
      2015-10-31
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Neural mechanisms for deciding with rewards to others.2015

    • Author(s)
      Fukuda H, Ma N, Suzuki S, Harasawa N, Ueno K, Gardner JL, Ichinohe N, Haruno M, Cheng K, Nakahara H.
    • Organizer
      International Symposium on Prediction and Decision Making 2015
    • Place of Presentation
      東京大学(東京都・文京区)
    • Year and Date
      2015-10-31
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Making better decisions by predicting others' minds.2015

    • Author(s)
      Ma N, Harasawa N, Ueno K, Ichinohe N, Haruno M, Cheng K, Nakahara H.
    • Organizer
      The 45th Annual Meeting of the Society for Neuroscience
    • Place of Presentation
      Chicago, USA.
    • Year and Date
      2015-10-17
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Neural mechanisms for deciding with rewards to others.2015

    • Author(s)
      Fukuda H, Ma N, Suzuki S, Harasawa N, Ueno K, Gardner JL, Ichinohe N, Haruno M, Cheng K, Nakahara H.
    • Organizer
      The 45th Annual Meeting of the Society for Neuroscience
    • Place of Presentation
      Chicago, USA.
    • Year and Date
      2015-10-17
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Elucidate social decision-making in face of the complexity.2015

    • Author(s)
      Nakahara H.
    • Organizer
      SAMSI-Boston Univerisity Workshop "Challenges in Linking Statistical and Mathematical Neuroscience 2015"
    • Place of Presentation
      Boston, USA.
    • Year and Date
      2015-10-14
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Neural mechanisms for value-based decision-making with reward to others.2015

    • Author(s)
      Fukuda H, Ma N, Suzuki S, Harasawa N, Ueno K, Gardner JL, Ichinohe N, Haruno M, Cheng K, Nakahara H.
    • Organizer
      第38回日本神経科学大会
    • Place of Presentation
      神戸国際展示場(兵庫県・神戸市)
    • Year and Date
      2015-07-28
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Decision-making with predicting other's choices: human fMRI.2015

    • Author(s)
      Ma N, Harasawa N, Ueno K, Ichinohe N, Haruno M, Cheng K, Nakahara H.
    • Organizer
      第38回日本神経科学大会
    • Place of Presentation
      神戸国際展示場(兵庫県・神戸市)
    • Year and Date
      2015-07-28
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] How is reward of others added to make one's own decision in neural mechanisms?2015

    • Author(s)
      Fukuda H, Ma N, Suzuki S, Harasawa N, Ueno K, Gardner JL, Ichinohe N, Haruno M, Cheng K, Nakahara H.
    • Organizer
      脳と心のメカニズム 第15回冬のワークショップ 脳の計算論の未来
    • Place of Presentation
      北海道、日本
    • Year and Date
      2015-01-07
    • Related Report
      2014 Annual Research Report
  • [Presentation] Dual Reward Prediction Components Yield Pavlovian Sign- and Goal-Tracking.2015

    • Author(s)
      Kaveri S, Nakahara H.
    • Organizer
      脳と心のメカニズム 第15回冬のワークショップ 脳の計算論の未来
    • Place of Presentation
      北海道、日本
    • Year and Date
      2015-01-07
    • Related Report
      2014 Annual Research Report
  • [Presentation] How is reward of others integrated to make one's own decisions in neural mechanisms?2014

    • Author(s)
      Fukuda H, Ma N, Suzuki S, Harasawa N, Ueno K, Gardner JL, Ichinohe N, Haruno M, Cheng K, Nakahara H.
    • Organizer
      The 44th Annual Meeting of the Society for Neuroscience
    • Place of Presentation
      Washington DC, USA.
    • Year and Date
      2014-11-17
    • Related Report
      2014 Annual Research Report
  • [Presentation] How is reward of others integrated to make one's own decisions in neural mechanisms?2014

    • Author(s)
      Fukuda H, Ma N, Suzuki S, Harasawa N, Ueno K, Gardner JL, Ichinohe N, Haruno M, Cheng K, Nakahara H.
    • Organizer
      Vision, Memory, Thought: How Cognition Emerges from Neural Network (VMT2014)
    • Place of Presentation
      東京、日本
    • Year and Date
      2014-11-07
    • Related Report
      2014 Annual Research Report
  • [Presentation] Primitives for neural computations underlying social decision-making.2014

    • Author(s)
      Nakahara H.
    • Organizer
      Workshop "One, two, and many brains"
    • Place of Presentation
      Lisbon, Portugal.
    • Year and Date
      2014-09-19
    • Related Report
      2014 Annual Research Report
  • [Presentation] Neural mechanisms of integrating others’ outcomes to make one’s own decisions.2014

    • Author(s)
      Fukuda H, Suzuki S, Ma N, Harasawa N, Ueno K, Gardner JL, Ichinohe N, Haruno M, Cheng K, Nakahara H.
    • Organizer
      第37回日本神経科学大会
    • Place of Presentation
      神奈川、日本
    • Year and Date
      2014-09-11
    • Related Report
      2014 Annual Research Report
  • [Presentation] Neural computation and social decision-making.2014

    • Author(s)
      Nakahara H.
    • Organizer
      OIST Computational Neuroscience Course (OCNC2014)
    • Place of Presentation
      沖縄、日本
    • Year and Date
      2014-07-02
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Learning, Decision-Making, and Neural Coding.2014

    • Author(s)
      Nakahara H.
    • Organizer
      NII Shonan Meeting "Deep Learning: Theory, Algorithms, and Applications"
    • Place of Presentation
      神奈川、日本
    • Year and Date
      2014-05-19
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Remarks] 研究室ホームページ

    • URL

      http://www.itn.brain.riken.jp/index.html

    • Related Report
      2015 Annual Research Report 2014 Annual Research Report

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Published: 2014-04-04   Modified: 2018-03-28  

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