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Estimating semantic recognition of words using measurements of brain activation

Research Project

Project/Area Number 16K01969
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Brain biometrics
Research InstitutionNational Institute of Information and Communications Technology

Principal Investigator

FUJIMAKI NORIO  国立研究開発法人情報通信研究機構, 脳情報通信融合研究センター脳機能解析研究室, マネージャー (80359083)

Co-Investigator(Kenkyū-buntansha) 井原 綾  国立研究開発法人情報通信研究機構, 脳情報通信融合研究センター脳情報工学研究室, 主任研究員 (30390694)
Research Collaborator MATSUMOTO ATSUSHI  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords脳機能 / 脳磁界計測 / MEG / 活動源推定 / 少数試行データ解析 / 言語 / 意味 / 意味的距離 / 高次脳機能計測 / 言語的意味処理
Outline of Final Research Achievements

To know how the semantic distance between words, i.e., the similarity of their meanings, is processed in the brain, we measured neural activations with MEG using a priming paradigm in which a pair of words were visually presented in a sequential manner.
Using our method of analyzing neural sources from a small number of MEG trial data and additional noise reduction processes, we analyzed many trial data that were measured by varying semantic distance, to obtain the activation strengths of neural sources.
As the result, a single subject among ten showed the significant dependence of activation on semantic distance for a neural source in the anterior temporal area, whose function is known to be related to semantic processing.

Academic Significance and Societal Importance of the Research Achievements

本研究は、脳活動の条件差の有無を見る過去の多くの研究とは異なり、意味的距離という連続的なパラメータへの脳活動の依存性を抽出することを目的とし、パラメータ依存性を定量的に評価するために必要な脳活動計測や解析の手法を開発した意義がある。
意味の脳内処理は多くの部位が関わり、個人差もあるため、今回の解析において有意な依存性が一例しか得られなかったことは、今後のさらなる研究の必要性を示す。
また脳内の意味処理についての解析手法や知見は、ヒトの認識・意図を抽出する脳情報応用や認知症などの臨床応用に寄与する。

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Products Report
  • Research Products

    (4 results)

All 2021 2017 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (1 results) (of which Invited: 1 results) Remarks (1 results)

  • [Journal Article] Distinctive responses in anterior temporal lobe and ventrolateral prefrontal cortex during categorization of semantic information2021

    • Author(s)
      Atsushi Matsumoto, Takahiro Soshi, Norio Fujimaki, and Aya S. Ihara
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1

    • DOI

      10.1038/s41598-021-92726-7

    • Related Report
      Products Report
    • Peer Reviewed / Open Access
  • [Journal Article] Memory-Based Specification of Verbal Features for Classifying Animals into Super-Ordinate and Sub-Ordinate Categories2017

    • Author(s)
      Soshi Takahiro、Fujimaki Norio、Matsumoto Atsushi、Ihara Aya S.
    • Journal Title

      Frontiers in Communication

      Volume: 2

    • DOI

      10.3389/fcomm.2017.00012

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] MRI・MEGの運用と言語脳機能計測2017

    • Author(s)
      藤巻則夫
    • Organizer
      第一回ISMRM(国際磁気共鳴医学会)日本支部学術集会、ランチョンセミナー
    • Place of Presentation
      大阪大学吹田キャンパスCiNet棟(大阪府・吹田市)
    • Year and Date
      2017-02-24
    • Related Report
      2016 Research-status Report
    • Invited
  • [Remarks] 脳情報通信融合研究センター

    • URL

      http://cinet.jp

    • Related Report
      2018 Annual Research Report

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Published: 2016-04-21   Modified: 2022-04-15  

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