Evaluation of Time Preference Model by Interdisciplinary Approach and Elucidation of Neural Mechanism

2016 Fiscal Year Final Research Report

• Project/Area Number: 25540057
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Cognitive science
• Research Institution: Advanced Telecommunications Research Institute International
• Principal Investigator: TANAKA Saori (田中沙織) 株式会社国際電気通信基礎技術研究所, 脳情報通信総合研究所, 研究室長 (00505985)
• Research Collaborator: TAKAGI Yu 株式会社国際電気通信基礎技術研究所, 脳情報通信総合研究所, 連携実習生
• Project Period (FY): 2013-04-01 – 2017-03-31
• Keywords: 時間割引 / 主観時間 / 異時点間選択問題

Outline of Final Research Achievements

To investigate the neural representation of time in the delay discount model, we conducted a time discount experiment to show that the neural representation of reward and time was separated. We found that these representations depend on individual characteristics. Next, to investigate the influence of subjective time in delay discounting, we developed an experimental protocol to estimate subjective time from brain activity. In order to construct a delay discount model incorporating subjective time, we developed a learning task incorporating prospective and retrospective temporal perspectives and verified the model.

Free Research Field

行動神経科学