2017 Fiscal Year Final Research Report
A novel behavioral task for investigating a mixture of model-free and model-based reinforcement learning in rodents
Project/Area Number |
16K13505
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Research Category |
Grant-in-Aid for Challenging Exploratory Research
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Allocation Type | Multi-year Fund |
Research Field |
Experimental psychology
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Research Institution | Nagoya University |
Principal Investigator |
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Project Period (FY) |
2016-04-01 – 2018-03-31
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Keywords | モデルフリー・モデルベース / 意思決定 / 行動選択 |
Outline of Final Research Achievements |
Decision-making and reinforcement learning arise from the involvement of two distinct processes that control choice, known as model-based and model-free strategies. Model-based choices are prospective, whereas model-free choices are retrospective. In general, normal performance depends on the flexible integration of model-based and model-free control. In this research, we employed a two-step sequential visual discrimination learning of complex stimuli in touch-screen task to establish a novel behavioral system for investigating a mixture of model-free and model-based reinforcement learning in rodent. Rats chose option on the reward amount- and provability-dependent manner. However, we failed to find best fitting behavioral modeling and parameters. We need to continue our experiments in future studies.
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Free Research Field |
神経薬理学
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