Learning algorithm and neural basis of reducing market anomalies

• Project/Area Number: 15H03124
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Basic / Social brain science
• Research Institution: Tamagawa University
• Principal Investigator: MATSUMOTO Kenji 玉川大学, 脳科学研究所, 教授 (50300900)
• Co-Investigator(Renkei-kenkyūsha): KOIKE Yasuharu 東京工業大学, 科学技術創成研究院, 教授 (10302978)
• Research Collaborator: MATSUMORI Kaosu ; YOMOGIDA Yukihito ; IIJIMA Kazuki ; AOKI Ryuta ; IZUMA Keise ; SUZUKI Shinsuke ; MURAYAMA Kou ; SAKAKI Michiko ; FOO Jerome ; SUGIURA Ayaka
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥18,200,000 (Direct Cost: ¥14,000,000、Indirect Cost: ¥4,200,000); Fiscal Year 2017: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000); Fiscal Year 2016: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000); Fiscal Year 2015: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
• Keywords: ニューロエコノミクス / 認知バイアス / 学習アルゴリズム / 脳

Outline of Final Research Achievements

We proposed an exponentially biased Bayesian update model with its underlying neural circuits, which can explain most cognitive biases in human probability judgments as well as electrophysiological findings on experimental animals. The model also provides a unified account for some psychiatric diseases. We applied the model to determine the learning algorism to diminish the cognitive bias in an experimentally designed market. In addition, we proposed a new behavior change theory that is consistent to the findings in behavioral economics.

Research Products

• [Journal Article] Regional gray matter volume in the posterior precuneus is associated with genaral self-efficacy (2016)
  • Author(s): Sugiura A, Aoki R, Murayama K, Yomogida Y, Haji T, Saito A, Hasegawa T, Matsumoto K
  • Journal Title: Neuroreport Volume: 27(18) Issue: 18 Pages: 1350-1353
  • DOI: 10.1097/wnr.0000000000000702
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] “Coordinated activation of premotor and ventromedial prefrontal cortices during vicarious reward” (2015)
  • Author(s): Sotaro Shimada, Madoka Matsumoto, Hidefumi Takahashi, Yukihito Yomogida, and Kenji Matsumoto.
  • Journal Title: Social Cognitive and Affective Neuroscience Volume: 11 Issue: 3 Pages: 508-515
  • DOI: 10.1093/scan/nsv134
  • Peer Reviewed / Open Access
• [Journal Article] The anterior insula tracks behavioral entropy during an interpersonal competitive game (2015)
  • Author(s): Takahashi H., Izuma K., Matsumoto M., Matsumoto K., Omori T.
  • Journal Title: PLOS ONE Volume: 10-6 Issue: 6 Pages: 0-0
  • DOI: 10.1371/journal.pone.0123329
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Presentation] 説得による社会規範の変化を基礎づける脳活動 (2018)
  • Author(s): 松元健二
  • Organizer: 規範経済学研究会【第8回】
  • Invited
• [Presentation] A Decision Theoretic Model Incorporating Social Norm and Self-efficacy (2017)
  • Author(s): Kaosu Matsumori, Yukihito Yomogida, Kenji Matsumoto
  • Organizer: 玉川大学脳科学ワークショップ
• [Presentation] Asymmetric function of the right and left inferior parietal lobule in mind wandering － A tDCS and fMRI study (2017)
  • Author(s): 梶村昇吾, 河内山隆紀, 阿部修士, 野村理朗
  • Organizer: 玉川大学脳科学ワークショップ
• [Presentation] 社会に生きるための動機づけの神経基盤 (2016)
  • Author(s): 松元健二
  • Organizer: 応用脳科学コンソーシアム：応用脳科学アカデミー
  • Place of Presentation: ワテラスコモンホール（東京都千代田区）
  • Year and Date: 2016-12-20
  • Invited
• [Presentation] Excessive association between negative intentionality and immorality is diminished in autism spectrum disorder (2016)
  • Author(s): K. IIJIMA, Y. YOMOGIDA, K. ASADA, K. ABE, A. SUGIURA, S.KUMAGAYA, K. MATSUMOTO.
  • Organizer: Society for Neuroscience 2016
  • Place of Presentation: San Diego Convention Center（USA)
  • Year and Date: 2016-11-14
  • Int'l Joint Research
• [Presentation] Performance decrement induced by increasing social incentive (2016)
  • Author(s): A. SUGIURA, Y. YOMOGIDA, K. IIJIMA, T. HASEGAWA, K. MATSUMOTO.
  • Organizer: Society for Neuroscience 2016
  • Place of Presentation: San Diego Convention Center（USA)
  • Year and Date: 2016-11-12
  • Int'l Joint Research
• [Presentation] The paradoxical effect of social incentive to performance (2016)
  • Author(s): A. SUGIURA, Y. YOMOGIDA, K. IIJIMA, T. HASEGAWA, K. MATSUMOTO.
  • Organizer: Society for Social Neuroscience 2016 Annual Meeting
  • Place of Presentation: San Diego Marriott Marquis and Marina Hotel（USA)
  • Year and Date: 2016-11-11
  • Int'l Joint Research
• [Presentation] Excessive association between negative intentionality and immorality is diminished in autism spectrum disorder (2016)
  • Author(s): K. IIJIMA, Y. YOMOGIDA, K. ASADA, K.MATSUMORI, A. SUGIURA, S.KUMAGAYA, K. MATSUMOTO.
  • Organizer: Society for Social Neuroscience 2016 Annual Meeting
  • Place of Presentation: San Diego Marriott Marquis and Marina Hotel（USA)
  • Year and Date: 2016-11-11
  • Int'l Joint Research
• [Presentation] 社会規範が変わるとき―説得の脳科学 (2016)
  • Author(s): 松元 健二
  • Organizer: 脳コミュニケーション研究センター脳と情報シンポジウム2016
  • Place of Presentation: 高知工科大学（高知県香美市）
  • Year and Date: 2016-11-02
  • Invited
• [Presentation] 社会的認知理論および計画的行動理論の数理モデル (2016)
  • Author(s): 松森嘉織好、蓬田幸人、飯島和樹、杉浦綾香、村山航、松元健二
  • Organizer: 第75回日本公衆衛生学総会
  • Place of Presentation: グランフロント大阪(大阪府大阪市）
  • Year and Date: 2016-10-27
• [Presentation] “Elimination of Market Anomalies in Auctions is only Apparent” (2016)
  • Author(s): K. Abe, Y. Yomogida, R. Aoki, A. Sugiura, A.N. Phillips, Y. Koike, K. Matsumoto.
  • Organizer: 第5回玉川大学脳科学リトリート
  • Place of Presentation: ニューウェルシティ湯河原 (静岡県熱海市)
  • Year and Date: 2016-02-10
• [Presentation] “The Neural Basis of Changing Social Norms through Persuasion” (2015)
  • Author(s): Yukihito Yomogida, Madoka Matsumoto, Ryuta Aoki, Ayaka Sugiura, Adam N. Phillips, and Kenji Matsumoto.
  • Organizer: The First International Workshop on the Neurobiology of Social Influence
  • Place of Presentation: National Research University Higher School of Economics, Moscow, Russia.
  • Year and Date: 2015-08-31
  • Int'l Joint Research
• [Book] 「ビジュアル版 脳と心と身体の図鑑」 (2015)
  • Author(s): 松元健二監訳、尾澤和幸訳、ケン・アシュウェル編
  • Total Pages: 351
  • Publisher: 柊風舎
• [Remarks] 玉川大学脳科学研究所 松元研究室
  • URL: http://www.tamagawa.ac.jp/teachers/matsumot/matsumoto_lab_jp/
• [Remarks] 玉川大学脳科学研究所 松元研究室
  • URL: http://www.tamagawa.ac.jp/teachers/matsumot/matsumoto_lab_jp/index.html