Investigations of characteristics of sensory processing unique to autistic traits for a large population without the diagnosis using psychophysical methods

• Project/Area Number: 17K00214
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Cognitive science
• Research Institution: Rikkyo University
• Principal Investigator: HIDAKA Souta 立教大学, 現代心理学部, 教授 (40581161)
• Project Period (FY): 2017-04-01 – 2020-03-31
• Project Status: Completed (Fiscal Year 2019)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: 自閉症傾向 / 感覚情報処理 / 感覚間相互作用 / 視聴覚相互作用 / 触知覚 / 視触覚相互作用 / 感覚閾 / 感覚間対応づけ効果 / 感覚間対応づけ

Outline of Final Research Achievements

This study examined the relationship between the strength of autistic traits and within and across sensory information processing. We measured characteristics of sensory processing for multiple senses (vision, audition, and touch) and autistic traits for a large sample without the diagnosis. We found that Autistic sub-traits such as communication and social skills have a unique relationship with sensory processing like tactile detection sensitivity and temporal characteristics of audiovisual interactions. These findings suggest that unique sensory processing may underlie behind each autistic sub-traits.

Academic Significance and Societal Importance of the Research Achievements

従来の二分法的な検討方式から脱却した形で，自閉症傾向は個人の一個性であるという新たな観点から自閉症傾向の感覚情報処理における特異性を網羅的に検証した。そして，各自閉症の下位特性に特有の，視覚，聴覚，触覚における感覚情報処理特性の存在の一端を明らかにした。このことは，診断を受けた方を含む自閉症傾向が強い方は独自の知覚世界を構築する仕組みが存在することを示唆するのみならず，そのような方々において最適な感覚情報処理を可能にする提示手法や訓練プログラムの開発の提言に寄与するという社会的・応用的意義も持つと考えられる。

Research Products

• [Int'l Joint Research] Birkbeck, University of London(英国)
• [Int'l Joint Research] Birkbeck, University of London(英国)
• [Journal Article] Unique Relationships between Autistic Traits and Visual, Auditory, and Tactile Sensory Thresholds in Typically Developing Adults. (2020)
  • Author(s): Yaguchi, A. and Hidaka, S.
  • Journal Title: Perception Volume: 49 Issue: 4 Pages: 405-421
  • DOI: 10.1177/0301006620907827
  • Peer Reviewed
• [Journal Article] Anisotropy in tactile time perception (2020)
  • Author(s): Souta Hidaka, Luigi Tame, Antonio Zafarana, Matthew R. Longo
  • Journal Title: Cortex Volume: 128 Pages: 124-134
  • DOI: 10.1016/j.cortex.2020.03.011
  • Peer Reviewed
• [Journal Article] An Investigation of the Relationships Between Autistic Traits and Crossmodal Correspondences in Typically Developing Adults (2018)
  • Author(s): Hidaka Souta、Yaguchi Ayako
  • Journal Title: Multisensory Research Volume: 31 Issue: 8 Pages: 729-751
  • DOI: 10.1163/22134808-20181304
  • Peer Reviewed
• [Journal Article] Effects of spatial consistency and individual difference on touch-induced visual suppression effect (2018)
  • Author(s): Hidaka Souta、Suzuishi Yosuke、Ide Masakazu、Wada Makoto
  • Journal Title: Scientific Reports Volume: 8 Issue: 1 Pages: 17018-17018
  • DOI: 10.1038/s41598-018-35302-w
  • Peer Reviewed / Open Access
• [Presentation] 手の軸間で生じる触刺激に対する時間知覚の異方性 (2019)
  • Author(s): 日高聡太，Luigi Tame，Matthew R. Longo.
  • Organizer: 日本心理学会第83回大会
• [Presentation] 触覚仮現運動軌道上で生じる知覚マスキング (2019)
  • Author(s): 日高聡太，Luigi Tame，Matthew R. Longo
  • Organizer: 日本基礎心理学会第38回大会
• [Presentation] 触覚誘導性視知覚抑制効果における視触覚刺激の空間一致性と自閉傾向の影響に関する検討 (2018)
  • Author(s): 鈴石陽介，日高聡太，井手正和，和田真
  • Organizer: 第10回多感覚研究会
• [Presentation] 自閉症スペクトラム傾向と感覚間対応づけとの関係性に関する検討 (2017)
  • Author(s): 日高聡太, 矢口彩子
  • Organizer: 日本認知心理学会第15回大会
• [Presentation] Relationships between crossmodal correspondences and autistic traits in typically developing adults (2017)
  • Author(s): Hidaka, S., Yaguchi, A.
  • Organizer: 18th International Multisensory Forum
  • Int'l Joint Research