Integrated understanding of internally and externally guided decision making
| Project/Area Number |
25870467
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Experimental psychology
Cognitive science
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| Research Institution | Hiroshima University |
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Principal Investigator |
Nakao Takashi 広島大学, 教育学研究科, 准教授 (40432702)
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| Project Period (FY) |
2013-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 意思決定 / 正答のない意思決定 / 内因性脳活動 / 外側前頭前皮質 / 内側前頭前皮質 / 計算モデル |
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| Outline of Final Research Achievements |
Regarding the relationship between internally guided decision making and intrinsic brain activities, it was revealed that the intrinsic brain activity of the lateral prefrontal cortex modulates the activity of the medial prefrontal cortex during the internally guided decision making. In addition, the extent of the preference for the option, which was chosen in the past, was modulated by depressive symptoms, reward sensitivity, and a degree of power of the post response βγ wave generated from anterior cingulate cortex. Although we showed that reinforcement learning models can be applied to the internally guided decision making as well as externally guided decision making, the simple application of reinforcement learning is insufficient and factors such as self-relatedness of stimulus might mediate the learning process during internally guided decision making.
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Report
(5 results)
Research Products
(31 results)
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[Journal Article] Post-response βγ power predicts the degree of choice-based learning in internally guided decision-making.2016
Author(s)
Nakao, T., Kanayama, N., Katahira, K., Odani, M., Ito, Y., Hirata, Y., Nasuno., R, Ozaki, H., Hiramoto, R., Miyatani, M., Northoff, G.
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Journal Title
Scientific Reports
Volume: 6
Issue: 1
Pages: 1-9
DOI
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Peer Reviewed / Open Access / Int'l Joint Research
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[Book] Reward- and aversion-related processing in the brain: translational evidence for separate and shared circuits2016
Author(s)
D. J. Hayes, G. Northoff, A. J. Greenshaw (Eds.) Nakao, T., Matsumoto, T., Shimizu, D., Morita, M., Yoshimura, S., Northoff, G., Morinobu, S., Okamoto, Y., and Yamawaki, S. et al
Total Pages
181
Publisher
Lausanne: Frontiers Media
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