Model of subjective tactile perception based on the self-reference

2020 Fiscal Year Final Research Report

• Project/Area Number: 19K22871
• Research Category: Grant-in-Aid for Challenging Research (Exploratory)
• Allocation Type: Multi-year Fund
• Review Section: Medium-sized Section 61:Human informatics and related fields
• Research Institution: Nagoya Institute of Technology
• Principal Investigator: Tanaka Yoshihiro 名古屋工業大学, 工学(系)研究科(研究院), 准教授 (90432286)
• Co-Investigator(Kenkyū-buntansha): 佐藤 真理子 文化学園大学, 服装学部, 教授 (10409336)
• Project Period (FY): 2019-06-28 – 2021-03-31
• Keywords: 触覚 / 粗さ感 / 皮膚特性 / 皮膚振動 / 個人差 / 感度 / 振動伝播 / 主観モデル

Outline of Final Research Achievements

The purpose of this study is to clarify individual differences in tactile sensation for roughness. In addition to objects' properties and mechanical stimulation (vibration and friction) applied to the skin, skin characteristics (moisture content, viscoelasticity, fingerprints, etc.) and tactile sensitivities were investigated in the relationship among each other. The experimental results showed the difference in skin vibration and friction coefficient between the young group and the elderly group and its relation with the skin characteristics, individual difference in skin-propagated vibration and its relationship with the vibrotactile sensitivity, the influence of the posture and movement of the finger on the roughness, and the perceptual bias of the contact force by the roughness. In addition, it was indicated that not only mechanical factors but also cognitive factors are involved much in individual differences of tactile sensations.

Free Research Field

触覚，ロボティクス，メカトロニクス

Academic Significance and Societal Importance of the Research Achievements

本研究は，触覚が対象の物理特性だけでなく，個々人の皮膚特性や運動特性，さらに認知特性によって変化することを示し，個々人の感覚を見ることの重要性を示した．得られたそれぞれの特性に関する知見は，触覚の知覚メカニズムの研究だけでなく，触覚の定量化や個々人にあった触覚デザインに役立てることができ，粗さ感だけでなく主観的な触覚の設計と活用に貢献する．