Studies on neural basis of prediction error learning theory in insects
| Project/Area Number |
16H04814
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Animal physiology/Animal behavior
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| Research Institution | Hokkaido University |
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Principal Investigator |
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| Project Period (FY) |
2016-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2018: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2017: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2016: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
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| Keywords | 学習 / 昆虫 / 微小脳 / 報酬 / 罰 / 予測誤差 / オクトパミン / ドーパミン / 報酬学習 / 報酬予測誤差 / コオロギ / ゴキブリ / パブロフ型条件付け / 古典的条件付け / パブロフ型条件づけ / ニューロン / 脳 / 神経行動学 / 神経科学 |
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| Outline of Final Research Achievements |
I obtained four major findings in this study. At first, I showed that aversive learning in crickets can be accounted for by the prediction error theory. Secondly, I obtained evidence to suggest that dopamine neurons mediate aversive prediction error signals. Thirdly, I was successful to morphologically characterized octopamine-immunoreactive neurons that are likly to convey information about prediction error signals in appetitive learning in cockroaches. Finally, I showed that some features of learning in crickets cannot be accounted for by prediction error theory. In conclusion, I showed applicability of the predictor error to insect learning and also its limitations, and clarified some of its neural basis.
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| Academic Significance and Societal Importance of the Research Achievements |
本研究は、昆虫の学習の主要な特徴が予測誤差理論で説明できることを初めて明らかにし、またそのニューロン機構の一端を明らかにした画期的なもので、学術的に高い意義がある。
また本研究は、学習の基本アルゴリズムが昆虫と哺乳類の間で共通であることを明らかにし、動物の脳の進化の理解の鍵となる知見をもたらしたもので、社会的にも大きなインパクトを与えうるものである。
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Report
(4 results)
Research Products
(47 results)
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[Book] 動物学の百科事典2018
Author(s)
公益社団法人日本動物学会（執筆者に水波誠を含む）
Total Pages
770
Publisher
丸善出版
ISBN
4621303090
Related Report
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