| Budget Amount *help |
¥201,900,000 (Direct Cost: ¥201,900,000)
Fiscal Year 2009: ¥39,200,000 (Direct Cost: ¥39,200,000)
Fiscal Year 2008: ¥39,700,000 (Direct Cost: ¥39,700,000)
Fiscal Year 2007: ¥41,500,000 (Direct Cost: ¥41,500,000)
Fiscal Year 2006: ¥40,000,000 (Direct Cost: ¥40,000,000)
Fiscal Year 2005: ¥41,500,000 (Direct Cost: ¥41,500,000)
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| Research Abstract |
We showed that neuronal activity in the striatum represents reward value of action options and actions associated with reward values. In the intralaminar nuclei of thalamus, CM nucleus, we demonstrated specific neuronal activation at the request of unanticipated action while the subjects were anticipated higher-value action. The results suggested involvement of the CM nucleus in second-best solution for long-term goal. Furthermore, we found that midbrain dopamine neurons encode long-term reward value and its expectation error, which may play a critical role in achieving long-term goal through multi-step actions.
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