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Detection of visual perceptual characteristics in children with autism spectrum disorder using magnetoencephalography

Research Project

Project/Area Number 19K12728
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 InstitutionKanazawa University

Principal Investigator

Ikeda Takashi  金沢大学, 子どものこころの発達研究センター, 准教授 (80552687)

Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords脳磁図 / 自閉スペクトラム症 / 視覚野 / 色知覚 / 視覚
Outline of Research at the Start

自閉スペクトラム症児は対人コミュニケーションに困難を抱えていることが知られているが、その基盤となる低次の感覚・知覚レベルでの歪みがあり、その中でも視覚認知の機能不全が根底にあることが指摘されつつある。しかし、子どもの詳細な内観を得ることが難しい以上、視力そのものには異常がない場合において、視覚認知の問題は見過ごされてしまいがちである。本研究は、視覚刺激と神経活動との対応関係を時間・空間分解能に優れる非侵襲的脳機能計測法である脳磁図(MEG)によって定量的に評価して子どもの視覚野の活動を詳細に記述することが目的である。

Outline of Final Research Achievements

Children with autism spectrum disorder (ASD) are known to have difficulties with interpersonal communication, and it has been suggested that this may be due to dysfunction at lower sensory and perceptual levels. In this study, we quantitatively assessed activation in the visual cortex using magnetoencephalography (MEG), which has high temporal and spatial resolution. We acquired MEG data from 45 children with ASD and 38 typically developing children around 6 years of age during a pattern reversal task using a checkerboard pattern as a stimulus. In the luminance contrast condition, significant group differences were found after 100 ms of stimulus presentation. Children with ASD showed a lower P1m amplitude and a faster decay of the P1m component from the right occipital to temporal regions.

Academic Significance and Societal Importance of the Research Achievements

本研究は、視覚刺激と神経活動との対応関係を定量的に評価して子どもの視覚野の活動を詳細に記述するという認知神経科学への貢献に加え、臨床現場におけるASD診断を補完しうる位置にあるといえよう。本研究課題が明らかにする視覚野の活動の特徴がMEGによって検出できるようになれば、その簡易検出手段として脳波による応用や、さらに低年齢を対象とした研究を進める中でASD特性の早期発見へとつながっていくことが期待される。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (6 results)

All 2024 2023 2022 2021

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

  • [Journal Article] Visual working memory resolution defined by figural complexity in kindergarten children2024

    • Author(s)
      Suda Momoka、Ikeda Takashi、Kikuchi Mitsuru
    • Journal Title

      Journal of Vision

      Volume: 24 Issue: 1 Pages: 4-4

    • DOI

      10.1167/jov.24.1.4

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Intra-Brain Network Analysis with MEG2023

    • Author(s)
      池田 尊司
    • Journal Title

      Journal of The Society of Instrument and Control Engineers

      Volume: 62 Issue: 10 Pages: 630-634

    • DOI

      10.11499/sicejl.62.630

    • ISSN
      0453-4662, 1883-8170
    • Year and Date
      2023-10-10
    • Related Report
      2023 Annual Research Report
  • [Journal Article] Toward the Development of tES- Based Telemedicine System: Insights From the Digital Transformation and Neurophysiological Evidence.2022

    • Author(s)
      Ikeda T, Nishida K, Yoshimura M, Ishii R, Tsukuda B, Bunai T, Ouchi Y, Kikuchi M
    • Journal Title

      Frontiers in Psychiatry

      Volume: 11 Pages: 782-144

    • DOI

      10.3389/fpsyt.2022.782144

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 閉スペクトラム症者における幾何学図形刺激への注視と分析的行動との関係 ASD児は幾何学図形を好むのか?2022

    • Author(s)
      須田桃香、菊知充、池田尊司
    • Journal Title

      明治安田こころの健康財団研究助成論文集

      Volume: 57 Pages: 47-55

    • Related Report
      2022 Research-status Report
  • [Journal Article] 仮説検証のための実験計画2022

    • Author(s)
      池田 尊司
    • Journal Title

      色彩学

      Volume: 1 Pages: 8-11

    • Related Report
      2021 Research-status Report
  • [Presentation] 親子間相互作用の神経ダイナミクス2021

    • Author(s)
      池田 尊司
    • Organizer
      第60回日本生体医工学会大会・第36回日本生体磁気学会大会
    • Related Report
      2021 Research-status Report

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Published: 2019-04-18   Modified: 2025-01-30  

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