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Conformation of the cortical representation of scene

Research Project

Project/Area Number 20H04487
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 90030:Cognitive science-related
Research InstitutionUniversity of Tsukuba

Principal Investigator

Sakai Ko  筑波大学, システム情報系, 教授 (80281666)

Co-Investigator(Kenkyū-buntansha) 山根 ゆか子  沖縄科学技術大学院大学, 神経計算ユニット, スタッフサイエンティスト (70565043)
我妻 伸彦  東邦大学, 理学部, 講師 (60632958)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2022: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2021: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2020: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Keywords認知科学 / 神経科学 / 実験系心理学 / 情報工学 / 視覚 / 情報科学
Outline of Research at the Start

本研究は,視覚系が自然光景を理解するための皮質表現とその形成機序を明らかにすることを目的とする。複数物体の特徴が,物体毎に選択・統合されて,光景を構成する機序を理解することを試みる。サルV4からの神経記録の解析と計算実験,ヒト心理物理実験を総合して,単一細胞・回路網・領野間の3レベルからアプローチする。具体的には,単一細胞レベルで複数の物体特徴が表現され,これによって前駆物体の部分的な特徴が表現されること,その部分的な特徴が,臨界(criticality)崩壊によって生じるγ波の位相コヒーレンス(緩やかな同期)によって選択・統合されることによって,前駆物体の表現が形成されること,を示す。

Outline of Final Research Achievements

The present project studied the cortical representation of multiple objects and the integration of local object features, which construct the representation of global scenes through the visual pathway for understanding the natural scenes. We performed the analysis of the neural recordings from monkey V4, human psychophysics, and computational analysis, and showed the representation of object features and proto-objects in the individual neurons and the population of them.

Academic Significance and Societal Importance of the Research Achievements

自然光景には多数の物体が含まれている。光景を正しく理解するためには,光景を物体ごとに分離する図地分離を正しく行う必要がある。本研究は,電気生理学・ヒト心理物理学・計算論的神経科学を統合して,図地分離の皮質計算過程の理解に寄与した。具体的には,V4の単一細胞が複数の特徴を符号化すること,細胞が集団として図地を表現すること,LFPの位相コヒーレンスが表現に寄与していることを示した点に学術的意義がある。

Report

(4 results)
  • 2023 Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (22 results)

All 2023 2022 2021 2020 Other

All Int'l Joint Research (3 results) Journal Article (7 results) (of which Peer Reviewed: 7 results,  Open Access: 4 results) Presentation (12 results) (of which Int'l Joint Research: 4 results)

  • [Int'l Joint Research] University of Bremen(ドイツ)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] University of Bremen(ドイツ)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] University of Bremen(ドイツ)

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Correlation between neural responses and human perception in figure-ground segregation2023

    • Author(s)
      Shishikura Motofumi、Tamura Hiroshi、Sakai Ko
    • Journal Title

      Frontiers in Systems Neuroscience

      Volume: 16 Pages: 1-17

    • DOI

      10.3389/fnsys.2022.999575

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dimensionality of the intermediate-level representation of shape and texture in monkey V42022

    • Author(s)
      Kodama Atsushi、Kimura Kouji、Sakai Ko
    • Journal Title

      Neural Networks

      Volume: 153 Pages: 444-449

    • DOI

      10.1016/j.neunet.2022.06.027

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Figure-ground responsive fields of monkey V4 neurons estimated from natural image patches2022

    • Author(s)
      Kimura Kouji、Kodama Atsushi、Yamane Yukako、Sakai Ko
    • Journal Title

      PLOS ONE

      Volume: 17 Issue: 6 Pages: 0268650-0268650

    • DOI

      10.1371/journal.pone.0268650

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Interaction of surface pattern and contour shape in the tilt after effects evoked by symmetry2021

    • Author(s)
      Sakai Ko、Sakata Yui、Kurematsu Ken
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 1-12

    • DOI

      10.1038/s41598-021-87429-y

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Cortical Coding of Surface Textures and Contour Shapes in the Intermediate-Level Visual Area V42021

    • Author(s)
      Machida Itsuki、Kodama Atsushi、Kimura Kouji、Shishikura Motofumi、Tamura Hiroshi、Sakai Ko
    • Journal Title

      Communications in Computer and Information Science (CCIS), Springer

      Volume: 1517 Pages: 37-45

    • DOI

      10.1007/978-3-030-92310-5_5

    • ISBN
      9783030923099, 9783030923105
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Perception and Saccades during Figure-Ground Segregation and Border-Ownership Discrimination in Natural Contours2020

    • Author(s)
      WAGATSUMA Nobuhiko、URABE Mika、SAKAI Ko
    • Journal Title

      IEICE Transactions on Information and Systems

      Volume: E103.D Issue: 5 Pages: 1126-1134

    • DOI

      10.1587/transinf.2019EDP7020

    • NAID

      130007839072

    • ISSN
      0916-8532, 1745-1361
    • Year and Date
      2020-05-01
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Population coding of figure and ground in natural image patches by V4 neurons2020

    • Author(s)
      Yamane Yukako、Kodama Atsushi、Shishikura Motofumi、Kimura Kouji、Tamura Hiroshi、Sakai Ko
    • Journal Title

      PLOS ONE

      Volume: 15 Issue: 6 Pages: e0235128-e0235128

    • DOI

      10.1371/journal.pone.0235128

    • NAID

      120007161332

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Gamma activity spindles in V4 LFPs are modulated by stimulus dynamics and attentional demand.2022

    • Author(s)
      M. Shishikura, U. A. Ernst, I. Grothe, A. K. Kreiter and K. Sakai
    • Organizer
      Society of Neuroscience, Annual Meeting 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Population responses of monkey V4 neurons correlate with human figure-ground perception.2022

    • Author(s)
      M. Shishikura, H. Tamura and K. Sakai
    • Organizer
      NEURO 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 3次元形状知覚の照明依存性 ~ 照明画像の統計的解析 ~2022

    • Author(s)
      山本雅之、酒井 宏
    • Organizer
      日本視覚学会 夏季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] サルV4野の神経反応が示す次元数の推定2021

    • Author(s)
      樹神 篤, 酒井 宏
    • Organizer
      第31回日本神経回路学会全国大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Voluntariness based separation of attentional mechanisms in a visual search task-A possible indication for a new paradigm.2021

    • Author(s)
      Matheus Boger and Ko Sakai
    • Organizer
      映像情報メディア学会、ヒューマンインフォメーション研究会、3月
    • Related Report
      2020 Annual Research Report
  • [Presentation] V4 における表面と形状の同時表現2021

    • Author(s)
      町田 樹, 樹神 篤, 酒井 宏
    • Organizer
      電子情報通信学会、ニューロコンピューティング研究会、3月
    • Related Report
      2020 Annual Research Report
  • [Presentation] Packet-based selective information transmission through gamma oscillations in monkey V4 local-field-potentials during attention task.2021

    • Author(s)
      M. Shishikura and K. Sakai
    • Organizer
      令和2年度電気通信研究所共同プロジェクト研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Figure-ground consistency across natural image patches in monkey V4.2020

    • Author(s)
      M. Shishikura, K. Kimura and K. Sakai
    • Organizer
      Asia-Pacific Computational and Cognitive Neuroscience Conference
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Temporal development and dimensionality of figure-ground signals in monkey V4.2020

    • Author(s)
      A. Kodama, and K. Sakai
    • Organizer
      The 8th RIEC International Symposium on Brain Functions and Brain Computer
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] サルV4野FG選好性細胞の応答とヒト図地知覚の一貫性の相関解析2020

    • Author(s)
      宍倉基文, 山根ゆか子, 田村 弘, 酒井 宏
    • Organizer
      第30回日本神経回路学会全国大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] サルV4における表面と形状の同時表現2020

    • Author(s)
      町田 樹, 樹神 篤, 酒井 宏
    • Organizer
      第30回日本神経回路学会全国大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 感情によるユニーク色知覚の変化2020

    • Author(s)
      柴田紀代, 酒井 宏, 栗木一郎
    • Organizer
      日本視覚学会 夏季大会
    • Related Report
      2020 Annual Research Report

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Published: 2020-04-28   Modified: 2025-01-30  

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