Neural computations on social decision making : theory and experimental validations

2011 Fiscal Year Final Research Report

• Project/Area Number: 21300129
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Neuroscience in general
• Research Institution: The Institute of Physical and Chemical Research
• Principal Investigator: NAKAHARA Hiroyuki 独立行政法人理化学研究所, 理論統合脳科学研究チーム, チームリーダー (10312282)
• Project Period (FY): 2009 – 2011
• Keywords: 神経科学 / 数理工学 / 神経経済学 / 認知科学 / 機械学習 / 意思決定 / 社会的知能 / 計算論的神経科学

Research Abstract

We conducted studies with an ultimate aim of elucidating neural computations for social decision making. While we made several achievements towards the aim, here we summarize the result of a most central study. Using human fMRI experiment, combined with so-called model-based analysis, we investigated brain functions for value-based decision making, comparing two situations ; when the subject makes value-based decisions for their self reward and when the subjects predicts what value-based decision another person would make, when the other person is in the same situation for themselves. We found that the ventromedial frontal cortex plays a central role in simulating the other's value-based decision making process.

Research Products

• [Journal Article] Encoding of social state information by neuronal activities in the macaque caudate nucleus (2012)
  • Author(s): Santos, G, S., Nagasaka, Y., Fujii N., & Nakahara, H
  • Journal Title: Social Neuroscience Volume: 7(1) Pages: 42-58
  • Peer Reviewed
• [Journal Article] Higher-Order Interactions Characterized in Cortical Activity (2011)
  • Author(s): Yu, S., Yang, H., Nakahara, H., Santos, G, S., Nikoli., D., & Plenz, D
  • Journal Title: The Journal of Neuroscience Volume: 31(48) Pages: 17514-17526
  • Peer Reviewed
• [Journal Article] Multiple timescales of memory in lateral habenula and dopamine neurons (2010)
  • Author(s): Bromberg-Martin, E, S., Matsumoto, M., Nakahara, H., Hikosaka, O
  • Journal Title: Neuron Volume: 67(3) Pages: 499-510
  • Peer Reviewed
• [Journal Article] Internal-Time Temporal Difference Model for Neural Value-based Decision Making (2010)
  • Author(s): Nakahara, H., & Kaveri, S
  • Journal Title: Neural Computation Volume: 22(12) Pages: 3062-3106
  • Peer Reviewed
• [Journal Article] Hierarchical interaction structre of neural activities in cortical slice cultures (2010)
  • Author(s): Santos, G, S., Gireesh, E, D., Plenz, D., & Nakahara, H
  • Journal Title: The Journal of Neuroscience Volume: 30(26) Pages: 8720-8733
  • Peer Reviewed
• [Presentation] Two issues in neural value-decision making : emulating the other's decision processes, and time representations (2011)
  • Organizer: Invited Seminar, Center for Theoretical Neuroscience, Columbia University
  • Place of Presentation: New York, USA
  • Year and Date: 2011-11-22
• [Presentation] Two issues in neural value-decision making : emulating the other's decision processes, and time representations (2011)
  • Organizer: Invited Seminar, Center for Neural Science, New York University
  • Place of Presentation: New York, USA
  • Year and Date: 2011-11-21
• [Presentation] The structure of higher-order interactions in cortical LFP activity (2011)
  • Author(s): Santos, G, S., Gireesh, E, D., Yu S., Plenz D., & Nakahara, H
  • Organizer: 2011 Neuroscience Meeting Planner
  • Place of Presentation: Washington DC, USA
  • Year and Date: 2011-11-15
• [Presentation] The hierarchical model captures higher-order interactions in cortical activity (2011)
  • Author(s): Santos, G, S., Dharmaraj E. G., Plenz D., & Nakahara, H
  • Organizer: Neuro 2011
  • Place of Presentation: Yokohama, Japan
  • Year and Date: 2011-09-06
• [Presentation] Two issues in neural value-decision making : emulating the other's decision processes, and time representations (2011)
  • Organizer: Invited Seminar, Department of Experimental Psychology
  • Place of Presentation: University of Oxford. Oxford, UK
  • Year and Date: 2011-04-08
• [Presentation] Hierachical interaction structures of neural coding, in relation to information geometry (2011)
  • Organizer: Workshop on Geometric and Algebraic Statistics 3(WOGAS3)
  • Place of Presentation: Coventry, UK
  • Year and Date: 2011-04-05
• [Presentation] Two issues in neural value-decision making : emulating the other's decision processes, and time representations (2011)
  • Organizer: Invited Seminar, Gatsby Computational Neuroscience Unit
  • Place of Presentation: TUniversity College London. London, UK
  • Year and Date: 2011-04-04
• [Presentation] Two issues in neural value-decision making : emulating the other's decision processes, and time representations (2011)
  • Organizer: Emotion Club Invited Seminar, Wellcome Trust Centre for Neuroimaging
  • Place of Presentation: University College London. London, UK
  • Year and Date: 2011-04-04
• [Presentation] Separate encoding of reward expectation and social ranking in the primate caudate nucleus (2010)
  • Author(s): Santos, G, S., Nagasaka, Y., Fujii, N., & Nakahara, H
  • Organizer: 2010 Neuroscience Meeting Planner
  • Place of Presentation: San Diego, CA
  • Year and Date: 2010-11-15
• [Presentation] Emulation of other's reward prediction error in social value-based decision making (2010)
  • Author(s): Suzuki, S., Harasawa, N., Ueno, K., Kaveri S. R., Gardner, J., Ichinohe, N., Haruno, M., Cheng, K., & Nakahara, H
  • Organizer: Neuroscience Meeting Planner
  • Place of Presentation: San Diego, CA
  • Year and Date: 2010-11-15
• [Presentation] Value-based decision making, and the mechanisms of neural computations (2010)
  • Organizer: 10th China-India-Japan-Korea Joint Workshop on Neurobiology and Neuroinformatics(NBNI 2010)
  • Place of Presentation: Kunming, China
  • Year and Date: 2010-10-10
• [Presentation] Computational issues on value-decision making in nonsocial and social contexts (2010)
  • Organizer: Neuro 2010, New perspectives on value-based decision making
  • Place of Presentation: Kobe, Japan
  • Year and Date: 2010-09-04
• [Presentation] Computational issues on value-decision making in nonsocial and social contexts (2010)
  • Author(s): Nakahara, H
  • Organizer: New perspectives on value-based decision making
  • Place of Presentation: Abst, Kobe, Japan
  • Year and Date: 2010-09-04
• [Presentation] Modulation of caudate activity by social dominance (2010)
  • Author(s): Santos, G, S., Nagasaka, Y., Fujii, N., & Nakahara, H
  • Organizer: Neuro 2010
  • Place of Presentation: Kobe, Japan
  • Year and Date: 2010-09-04
• [Presentation] Neural correlates of the emulated-other's prediction errors in value-based decision making (2010)
  • Author(s): Suzuki, S., Harasawa, N., Ueno, K., Kaveri S. R., Gardner, J., Ichinohe, N., Haruno, M., Cheng, K., & Nakahara, H
  • Organizer: Neuro 2010
  • Place of Presentation: Kobe, Japan
  • Year and Date: 2010-09-03
• [Presentation] Neural coding and information geometry (2010)
  • Organizer: Information Geometry and Its Applications III
  • Place of Presentation: Leipzig, Germany
  • Year and Date: 2010-08-05
• [Presentation] Internal time temporal difference model of neural valuation (2010)
  • Author(s): Kaveri, S, R., & Nakahara, H
  • Organizer: COSYNE 2010
  • Place of Presentation: Salt Lake City, USA
  • Year and Date: 2010-02-26
• [Presentation] R. Does one simulate the other's value-based decision making by using the neural systems for his own (2010)
  • Author(s): Suzuki, S., Harasawa, N., Ueno, K., Gardner, J., Ichinohe, N., Haruno, M., Cheng, K., Nakahara, H. & Kaveri S
  • Organizer: COSYNE 2010
  • Place of Presentation: Salt Lake City
  • Year and Date: 2010-02-26
• [Presentation] Computational Issues for Value Based Decision Making in Nonsocial and Social Contexts (2010)
  • Organizer: Reward and Decision Making Batsheva Conference
  • Place of Presentation: Jerusalem, Israel
  • Year and Date: 2010-02-18
• [Presentation] Cluster organization of instantaneous activity in cortical cultures (2009)
  • Author(s): Santos, G, S., Dharmaraj, E, G., Plenz, D., & Nakahara, H
  • Organizer: 2009 Neuroscience Meeting Planner
  • Place of Presentation: Chicago, IL
  • Year and Date: 2009-10-19
• [Presentation] Does one really simulate the other's value-based decision making in one's value-based decision making (2009)
  • Author(s): Suzuki, S., Harasawa, N., & Nakahara, H
  • Organizer: 2009 Neuroscience Meeting Planner
  • Place of Presentation: Chicago, IL
  • Year and Date: 2009-10-18
• [Presentation] Modelinginstantaneous network correlations over multiple spatial scales (2009)
  • Author(s): Santos, G, S., Dharmaraj, E, G., Plenz, D., & Nakahara, H
  • Organizer: The 32nd Annual Meeting of the Japan Neuroscience Society(Neuroscience 2009)
  • Place of Presentation: Nagoya, Japan
  • Year and Date: 2009-09-16
• [Presentation] Value-based decision making-temporal discounting and context effect : neural mechanisms and computations(in Japanese) (2009)
  • Organizer: Waseda Morning Seminar(Institute for Research in Contemporary Political and Economic Affairs, Waseda University)
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 2009-05-18
• [Book] 神経回路網の数理-専門医のための精神科臨床リュミエール16脳科学エッセンシャル-精神疾患の生物学的理解のために (2010)
  • Author(s): 中原裕之
  • Total Pages: 303-304
  • Publisher: 株式会社中山書店
• [Book] 意思決定とその学習理論(第5章).シリーズ脳科学第1巻脳の計算論 (2009)
  • Author(s): 中原裕之
  • Total Pages: 159-221
  • Publisher: 東大出版会
• [Remarks] 研究室ホームページ
  • URL: http://www.brain.riken.jp/jp/faculty/details/35