Research on brain network underlying multisensory integration using Bayesian theory
Project/Area Number |
16H03749
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Experimental psychology
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Research Institution | The University of Tokyo |
Principal Investigator |
Yotsumoto Yuko 東京大学, 大学院総合文化研究科, 准教授 (80580927)
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Co-Investigator(Kenkyū-buntansha) |
佐藤 隆夫 立命館大学, 総合心理学部, 教授 (60272449)
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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 |
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2018: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2017: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2016: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
|
Keywords | ベイズ理論 / 知覚 / 視聴覚統合 / ベイズ / 神経相関 / 視覚情報処理 / 事前分布 / 注意 / 時間知覚 / 実験系心理学 / 経験 |
Outline of Final Research Achievements |
The aim of this study was to investigate how our brain compensates sensory uncertainty by combining multisensory information derived from an event, and by integrating the current sensory signal with the prior knowledge about the statistical structure of previous events.We measured the timing sensitivity and the central tendency for unisensory and multisensory stimuli with sensory uncertainty systematically manipulated by adding noise, and proposed computational models that indicate that the optimal multisensory integration precedes the Bayesian time estimation causing the central tendency. Our study suggested that the brain exploits the prior information stored at different processing stages adaptively in accordance with incoming sensory evidences.
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Academic Significance and Societal Importance of the Research Achievements |
一連の研究により、ヒトの脳は、さまざまなモダリティの感覚情報を統計的に最適かされた方法で統合することが示された。また、その結果に基づいて感覚情報の統合モデルを提案した。
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Report
(4 results)
Research Products
(58 results)
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[Journal Article] Spatial distortion related to time compression during spatiotemporal production in Parkinson's disease2017
Author(s)
onma, M., Murai, Y., Shima, S., Yotsumoto, Y., Kuroda, T., Futamura, A., Shiromaru, A., Murakami, I. & Kawamura, M.
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Journal Title
Neuropsychologia
Volume: 102
Pages: 61-69
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Presentation] 周期的に変動する知覚時間.2016
Author(s)
島周平, 村井祐基, 湯淺健一, 橋本侑樹, 四本裕子.
Organizer
日本視覚学会
Place of Presentation
新潟コンベンションセンター(新潟県・新潟市)
Year and Date
2016-08-17
Related Report
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