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Exploring psychological and neural mechanisms of visual consciousness

Research Project

Project/Area Number 18K18690
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 10:Psychology and related fields
Research InstitutionUniversity of Toyama

Principal Investigator

Tsubomi Hiroyuki  富山大学, 学術研究部人文科学系, 准教授 (70447986)

Project Period (FY) 2018-06-29 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2019: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2018: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords感覚記憶 / 意識 / 実験心理学 / 脳波
Outline of Final Research Achievements

We investigated the psychological and neural mechanisms underlying the subjective experience of 'seeing everything in front of us' despite limitations in attention and working memory capacity. The key characteristic of this subjective perception is that when an object is present in front of us, we perceive everything, but it quickly becomes invisible once the object disappears. This characteristic is attributed to the involvement of iconic memory. Thus, we examined both the psychological and neural mechanisms of iconic memory. The COVID-19 pandemic imposed limitations on EEG data collection, resulting in a restricted dataset for exploring the neural mechanisms of iconic memory. However, series of psychology experiments revealed that iconic memory persists for at least 1 second or longer, contrary to the previous assumption that it only lasts for 0.5 seconds.

Academic Significance and Societal Importance of the Research Achievements

従来の研究では、感覚記憶は0.5秒だけ持続すると考えられており、ほとんどの心理学の教科書に記載されるほど古典的な知見となっている。最近の研究では、刺激提示後0.5秒以上経過してからも情報が利用できることを根拠に、感覚記憶とは別の記憶貯蔵庫が存在するという提案がなされている。しかし、本研究の結果、感覚記憶は0.5秒より遥かに長時間持続することが示された。そのため、刺激提示後しばらく経過した後にも感覚記憶が利用されている可能性は高く、別の記憶貯蔵庫を想定する必要はないと考えられる。このように視覚記憶のモデルを構築する上で、感覚記憶の性質を明らかにすることは非常に重要であると考えられる。

Report

(6 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (14 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (9 results) Presentation (3 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results) Book (2 results)

  • [Int'l Joint Research] University of Tronto, Mississauga(カナダ)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] University of Tronto, Missisauga(カナダ)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] University of Oregon(米国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] University of Tronto, Missisauga(カナダ)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] University of Oregon(米国)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] University of Tronto, Mississauga(カナダ)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] University of Oregon(米国)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] University of Oregon(米国)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] University of Tronto, Mississauga(カナダ)

    • Related Report
      2018 Research-status Report
  • [Presentation] Object-based dependence of features in visual working memory2021

    • Author(s)
      Sone, H., Kang, M.-S., Li, A. Y., Tsubomi, H., & Fukuda, K.
    • Organizer
      Annual Meeting on Object Perception, Attention, and Memory
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 目的志向のワーキングメモリ2020

    • Author(s)
      坪見博之
    • Organizer
      日本認知科学会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 視覚性ワーキングメモリの概念と測定2019

    • Author(s)
      坪見博之
    • Organizer
      日本心理学会(シンポジウム・ワーキングメモリの測定と概念化)
    • Related Report
      2019 Research-status Report
  • [Book] 富山大学人文学部叢書V 人文知のカレイドスコープ「ワーキングメモリー知性の基盤ー」2022

    • Author(s)
      坪見博之
    • Total Pages
      123
    • Publisher
      桂書房
    • ISBN
      9784866271125
    • Related Report
      2021 Research-status Report
  • [Book] 公認心理師の基礎と実践(第6巻・実験心理学・10章・ワーキングメモリ)2019

    • Author(s)
      源健宏・坪見博之
    • Total Pages
      234
    • Publisher
      遠見書房
    • Related Report
      2019 Research-status Report

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Published: 2018-07-25   Modified: 2024-01-30  

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