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The Role of Spatial Information and Attention in Object Working Memory Retrieval Process

Research Project

Project/Area Number 17K13968
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Experimental psychology
Research InstitutionKwansei Gakuin University

Principal Investigator

SANADA Motoyuki  関西学院大学, 文学部, 研究員 (40734041)

Project Period (FY) 2017-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords作業記憶 / 注意 / 事象関連脳電位 / ワーキングメモリ / 空間情報 / EEG / ERP / 事象関連電位 / 実験系心理学 / 記憶 / 脳波計測 / 視線計測
Outline of Final Research Achievements

This study examined how spatial attention operates during the process of retrieving of object information, which is a combination of multiple visual features (such as color and shape), in working memory (WM), using event-related brain potentials (ERPs). To this end, ERPs were measured during the retrieval processes of two WM tasks: one involving the memorization of color only (feature WM task) and the other involving the memorization of color and shape combinations (object WM task). The ERP index of spatial attention, N2pc, showed increased amplitude during the object WM retrieval process compared to the feature WM task. This indicates that during the retrieval process in object WM, attention is more strongly directed towards the locations of items to be recalled than during feature WM search, suggesting that spatial attention plays an important role in this type of search.

Academic Significance and Societal Importance of the Research Achievements

作業記憶は長期記憶を始め多くの認知機能において情報保持・操作の場として働く、大変重要な認知機能である。また外環境に存在する物体は色や形状など複数の視覚的特徴の組み合わせとして存在し、その組み合わせを脳がどう認識しているかは認知心理学における重要な問題である。本研究は、その物体情報を作業記憶から検索するプロセスにおいて、空間的注意が強く働くことを事象関連脳電位(ERP)を用いて直接的に示した。この知見は、重要な認知機能である作業記憶のメカニズム解明にとって貢献するものであり、学術的意義は大きい。また作業記憶の理解は将来的には臨床場面など多くの応用場面で役立つはずであり、その社会的意義も大きい。

Report

(7 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
  • 2017 Research-status Report
  • Research Products

    (3 results)

All 2022 2021 2018

All Presentation (3 results) (of which Int'l Joint Research: 2 results)

  • [Presentation] Attention focuses intensely on the to-be-retrieved item location in the object working memory retrieval process compared to the color working memory: An ERP study.2022

    • Author(s)
      Motoyuki Sanada, Jun'ichi Katayama
    • Organizer
      the 22nd conference of the European Society for Cognitive Psychology
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 空間的注意は特徴作業記憶よりも物体作業記憶の検索過程においてより強く働く ―ERPを用いた検討―2021

    • Author(s)
      真田原行・片山順一
    • Organizer
      日本心理学会第85回大会
    • Related Report
      2021 Research-status Report
  • [Presentation] Negative emotion reduces ERP amplitude reflecting visual working memory retrieval2018

    • Author(s)
      Motoyuki Sanada, Juntaro Miyoshi, Jun'ichi Katayama
    • Organizer
      Society for Psychophisiological Research, annual meeting
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2024-01-30  

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