Endo Takahiro, Kim Dong-Hwan, Chamnongthai Komi
IEEE Trans Haptics. 2023 Jul-Sep;16(3):391-399. doi: 10.1109/TOH.2023.3299575. Epub 2023 Sep 19.
This article discusses a method to enhance fingertip tactile sensitivity by applying a vibrotactile noise at the wrist. This is an application of stochastic resonance to the field of haptics. We consider that the tactile sensitivity of the fingertip improves when a sufficiently large noise is propagated to it from the wrist. However, fingertip tactile sensitivity decreases when a large noise that humans can perceive is applied to the wrist. Therefore, in this article, we cool the wrist skin to reduce the wrist's tactile sensitivity to noise. This allows us to apply noise that is large, but still imperceptible, at the wrist and thus to propagate it to the fingertip. On the basis of these procedures, we propose a method to enhance fingertip tactile sensitivity. Further, we carry out several experiments and confirm that the proposed method improves fingertip tactile sensitivity.
本文讨论了一种通过在手腕处施加振动触觉噪声来增强指尖触觉敏感度的方法。这是随机共振在触觉领域的一种应用。我们认为，当足够大的噪声从手腕传播到指尖时，指尖的触觉敏感度会提高。然而，当向手腕施加人类可感知的大噪声时，指尖触觉敏感度会降低。因此，在本文中，我们对手腕皮肤进行冷却，以降低手腕对噪声的触觉敏感度。这使我们能够在手腕处施加虽大但仍不可感知的噪声，并将其传播到指尖。基于这些步骤，我们提出了一种增强指尖触觉敏感度的方法。此外，我们进行了多项实验，并证实所提出的方法提高了指尖触觉敏感度。
