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Quantitative modeling of neural representation for spatial cognition under natural visual experiences

Research Project

Project/Area Number 19K12745
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 90030:Cognitive science-related
Research InstitutionNational Institute of Information and Communications Technology

Principal Investigator

Wada Atsushi  国立研究開発法人情報通信研究機構, 未来ICT研究所脳情報通信融合研究センター, 主任研究員 (10418501)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2019: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords自然視覚経験 / 空間認識 / 脳内情報表現 / 深層学習 / モデルベース解析 / fMRI / 広視野 / 両眼立体視 / 脳内表現 / 深層ニューラルネットワーク
Outline of Research at the Start

人は様々な物に囲まれた複雑な環境の中でも,目に映る映像から瞬時に環境と自己の空間的な配置とその変化を把握できる.しかし,日常の自然な状況におけるこのような脳メカニズムは未だ明らかでない.本提案では,自由な視線移動を伴う広視野かつ自然な映像を観視している時の空間認識を担う脳内処理の解明を目指す.こうした研究から得られる知見は,主観的な空間認識状態を脳活動から直接推定する技術に使えるため,没入型VRの臨場感・映像酔い評価や認知症による空間認識障害の発見などの応用に資する.

Outline of Final Research Achievements

Even in a complex environment surrounded by various objects, humans can instantly grasp the spatial arrangement of the environment and themselves from retinal images. To elucidate the human brain mechanism of spatial perception under such natural visual experience, we quantitatively modeled the fMRI visual response to wide-view natural video using the internal representation of FlowNet, a deep neural network (DNN) for 2D motion estimation. The results showed that the deep layers of FlowNet deep could accurately predict neural response in the mid-level dorsal visual areas, which are suggested to involve spatial cognition. These results indicate the effectiveness of our unique approach that combines wide-field stimulation and model-based fMRI analysis.

Academic Significance and Societal Importance of the Research Achievements

空間認識に関わるヒト脳内情報表現の定量的モデル化は,主観的な空間認識状態を脳活動から直接推定する技術に使えるため,没入型VRの臨場感・映像酔い評価や認知症による空間認識障害の発見などの応用に資する.

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (8 results)

All 2023 2022 2021 2020 2019

All Journal Article (3 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (5 results) (of which Int'l Joint Research: 1 results,  Invited: 4 results)

  • [Journal Article] Human brain activity reflecting facial attractiveness from skin reflection2021

    • Author(s)
      Sakano Yuichi、Wada Atsushi、Ikeda Hanako、Saheki Yuriko、Tagai Keiko、Ando Hiroshi
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1

    • DOI

      10.1038/s41598-021-82601-w

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Facial radiance influences facial attractiveness and affective impressions of faces2020

    • Author(s)
      Ikeda Hanako、Saheki Yuriko、Sakano Yuichi、Wada Atsushi、Ando Hiroshi、Tagai Keiko
    • Journal Title

      International Journal of Cosmetic Science

      Volume: 43 Issue: 2 Pages: 144-157

    • DOI

      10.1111/ics.12673

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 広視野・自然映像を用いた空間認識の脳メカニズム解 ~VRと脳科学を融合した新たな情報通信を目指して~2019

    • Author(s)
      和田充史
    • Journal Title

      電波技術協会報FORN

      Volume: 331 Pages: 14-18

    • Related Report
      2019 Research-status Report
  • [Presentation] 安全な脳計測データ利活用のための情報基盤構築の試み2023

    • Author(s)
      和田 充史
    • Organizer
      甲南大学自然科学研究科安全講習会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 広視野呈示下のヒト脳機能イメージング2022

    • Author(s)
      和田 充史
    • Organizer
      第12回CiNetシンポジウム
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 肌の光沢に由来する顔の魅力度を反映するヒトの脳活動2021

    • Author(s)
      坂野 雄一, 和田 充史, 池田 華子, 佐伯 百合子, 互 恵子, 安藤 広志
    • Organizer
      第26回日本顔学会大会(フォーラム顔学2021)
    • Related Report
      2021 Research-status Report
  • [Presentation] AIで紐解く空間認識の脳内処理2020

    • Author(s)
      和田充史
    • Organizer
      第19期金曜サイエンスサロン
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Neural mechanisms of spatial cognition during natural visual experience2019

    • Author(s)
      Atsushi Wada
    • Organizer
      13th Anniversary International Symposium on Nano Medicine (ISNM2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2019-04-18   Modified: 2024-01-30  

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