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Role of the basal ganglia and dopamine neurons for reward learning in social context

Research Project

Project/Area Number 26750379
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Basic / Social brain science
Research InstitutionTamagawa University

Principal Investigator

ENOMOTO Kazuki  玉川大学, 脳科学研究所, 科研費研究員 (10585904)

Project Period (FY) 2014-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsドーパミン / 社会性 / 霊長類 / 報酬 / 意思決定 / 学習
Outline of Final Research Achievements

In a social context, we make decisions and select actions based on long-term reward expectation. We showed that activities of midbrain dopamine neurons in monkeys represented super-long-term reward information when monkeys were over-trained about a behavioral task in which they attain a goal following multiple reward acquisition. We also trained monkeys to do a social task in which they need to observe the other agent to obtain reward efficiently. Monkeys’ behavior indicated that they learn from others’ action and reward consumption to improve their own decisions. These results contribute to uncover the neural system involved in learning and decision-making in a social context.

Report

(3 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • Research Products

    (1 results)

All 2014

All Presentation (1 results)

  • [Presentation] Heterogeneous reward signals of midbrain dopamine neurons in over-trained monkeys.2014

    • Author(s)
      榎本一紀
    • Organizer
      第37回日本神経科学大会
    • Place of Presentation
      パシフィコ横浜, 神奈川県
    • Year and Date
      2014-09-11
    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2017-05-10  

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