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Augmentation of Interpersonal Touch Interactions: Establishing Vibrotactile Localization Control Theory Utilizing Propagation Characteristics of Skin Waves and Sensory Illusions

Research Project

Project/Area Number 22K17926
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 61020:Human interface and interaction-related
Research InstitutionUniversity of Tsukuba

Principal Investigator

Hachisu Taku  筑波大学, システム情報系, 助教 (20810170)

Project Period (FY) 2022-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2023: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2022: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords身体接触 / 触覚 / 振動 / 錯覚現象 / 振動伝搬 / ハプティクス / ヒューマンコンピュータインタラクション
Outline of Research at the Start

本研究では,二者間の手指の接触(身体接触)を計測し,実時間で光や振動で感覚を刺激して拡張するブレスレット型デバイスの開発を行っている.これを用いた遊びを提供することで,特に自閉症児の発達や対人交流の支援に応用する.
本研究課題では感覚刺激として振動に着目し手首から指先の任意位置に感覚提示する方法論の確立を目的とする.そのために:1)接触相手に効率よく伝搬する振動刺激を設計するための皮膚の振動伝搬特性の計測;2)振動が刺激されていない部位に感覚を提示するための触錯覚現象の生起条件の解明,に取り組む.本研究成果は身体接触の感覚的拡張における空間的表現の幅を広げ,多様な遊びの創出に寄与する.

Outline of Final Research Achievements

This study analyzed the propagation characteristics of vibrations from the wrist to the fingers and the sensory illusion related to vibrotactile localization in two individuals wearing bracelet-type devices during hand contact. First, the propagation of vibrations from the wrist to the fingers was characterized using accelerometers. Additionally, it was found that the perceived intensity by the contact partner was logarithmically proportional to the root mean square of the acceleration. Next, the vibrotactile localization illusion, previously reported to occur within individuals, was found to occur between individuals who held each other's hands. The perceived location of the vibrations can be controlled by the intensity ratio of the vibrations applied to both wrists.

Academic Significance and Societal Importance of the Research Achievements

本研究の学術的意義は,皮膚の振動伝搬特性と振動位置覚に関する錯覚現象を明らかにし,触覚提示技術の基礎理論を確立した点にある.これにより,従来の触覚研究に新たな知見を提供し,触覚提示技術の発展に寄与する.特に,この二者間の物理的な身体接触に対する触覚提示技術は未開拓領域であり,人の触覚メカニズムの理解を深める重要な成果である.社会的意義としては,本研究成果はエンターテインメントやコミュニケーション技術の分野に応用可能である.例えば,複数名が参加するバーチャルリアリティや発達支援における触覚フィードバックの質を向上させることで印象的な体験を創出し,対人交流の促進に貢献する可能性がある.

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (7 results)

All 2024 2023 2022

All Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (4 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Journal Article] Interpersonal Transmission of Vibrotactile Feedback Via Smart Bracelets: Mechanics and Perception2024

    • Author(s)
      Hachisu Taku、Reardon Gregory、Shao Yitian、Suzuki Kenji、Visell Yon
    • Journal Title

      IEEE Transactions on Haptics

      Volume: Early Access Issue: 3 Pages: 1-13

    • DOI

      10.1109/toh.2023.3327394

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Design of Conductive Fabric Wristbands with Current Transmission Function for Measurement of Interpersonal Touches2023

    • Author(s)
      森 理樹、蜂須 拓
    • Journal Title

      Transactions of the Virtual Reality Society of Japan

      Volume: 28 Issue: 4 Pages: 295-302

    • DOI

      10.18974/tvrsj.28.4_295

    • ISSN
      1344-011X, 2423-9593
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Localized Vibrotactile Sensations between Hands of Two Parties Holding Hands Using Phantom Sensations2023

    • Author(s)
      海老名 健太、蜂須 拓
    • Journal Title

      Transactions of the Virtual Reality Society of Japan

      Volume: 28 Issue: 4 Pages: 303-310

    • DOI

      10.18974/tvrsj.28.4_303

    • ISSN
      1344-011X, 2423-9593
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Interpersonal Vibrotactile Phantom Sensation between Hands via Actuated Bracelets2023

    • Author(s)
      Kenta Ebina, Taku Hachisu
    • Organizer
      IEEE World Haptics Conference 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 身体の物理的接触を拡張するウェアラブルデバイス(第13報):マルチプレイヤビデオゲームへの応用検討2023

    • Author(s)
      海老名健太,蜂須拓
    • Organizer
      第28回日本バーチャルリアリティ学会大会論文集
    • Related Report
      2023 Annual Research Report
  • [Presentation] Interpersonal Vibrotactile Phantom Sensation between Hands via Actuated Bracelets2023

    • Author(s)
      Kenta Ebina, Taku Hachisu
    • Organizer
      IEEE World Haptics Conference
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 身体の物理的接触を拡張するウェアラブルデバイス(第11 報):ファントムセンセーションを用いた任意位置振動提示手法2022

    • Author(s)
      海老名健太,蜂須拓
    • Organizer
      日本バーチャルリアリティ学会ハプティクス研究会第29回研究会
    • Related Report
      2022 Research-status Report
    • Invited

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Published: 2022-04-19   Modified: 2025-01-30  

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