Do interest and extrinsic rewards have separate representations?
| Project/Area Number |
15H05401
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Experimental psychology
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| Research Institution | Kochi University of Technology |
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Principal Investigator |
Murayama Kou 高知工科大学, 総合研究所, 客員教授 (10748726)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥28,860,000 (Direct Cost: ¥22,200,000、Indirect Cost: ¥6,660,000)
Fiscal Year 2017: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2016: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Fiscal Year 2015: ¥15,860,000 (Direct Cost: ¥12,200,000、Indirect Cost: ¥3,660,000)
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| Keywords | 内発的動機づけ / 知的好奇心 / 意思決定 / 実験心理学 / 教育心理学 / 記憶 |
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| Outline of Final Research Achievements |
The current study tested the hypothesis that intrinsic interest and extrinsic rewards (i.e. foods) are processed in the common reward network in the brain, using a novel magic-show paradigm. Supporting our hypothesis, both food pictures and magic trick video clips activated the striatum (one core part of the reward network in the brain). Subsequent behavioral experiments also showed that, like extrinsic rewards, intrinsic interest promoted memory consolidation. Further behavioral experiments supported our additional hypothesis that knowledge acquisition has accumulative effects on intrinsic interest over time.
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| Academic Significance and Societal Importance of the Research Achievements |
知的好奇心や興味は脳のどのようなメカニズムで支えられているのだろうか？ この問いに答えるため，マジックショーやトリビアクイズといった，知的好奇心を高めるような課題を用いて，脳イメージング研究を行った。その結果，興味は食べ物といった生理的な欲求と同じく，脳内の報酬系で処理されていることが明らかになった。興味と生理的欲求が同じ神経基盤に基づいていることから，今後，人の興味や知的好奇心を高めるための方法にも示唆を与えられると思われる。
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Report
(4 results)
Research Products
(35 results)
