The Effect of Temperature on Tactile Softness Perception

Tan, Zheng Yee; Choo, Cameron Mavericks; Lin, Youneng; Ho, Hwai‐Chung; Kitada, Ryo

doi:10.1109/toh.2022.3198115

Cited by 8 publications

(1 citation statement)

References 38 publications

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“…In particular, it is known that low temperature decreases the sensitivity of Pacinian corpuscles [18]. Further, the effects of temperature on the perception of voltage stimuli [21] and the tactile perception of softness [22] have…”

Section: Introductionmentioning

confidence: 99%

Enhancing Fingertip Tactile Sensitivity by Vibrotactile Noise and Cooling Skin Temperature Effect

Endo

Kim

Chamnongthai

2023

IEEE Trans. Haptics

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This paper 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 paper, 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.

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Section: Introductionmentioning

confidence: 99%

Enhancing Fingertip Tactile Sensitivity by Vibrotactile Noise and Cooling Skin Temperature Effect

Endo

Kim

Chamnongthai

2023

IEEE Trans. Haptics

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Robot soft thermal display using self-heating and cooling system

Osawa,

Ogura,

Kheddar

2024

Case Studies in Thermal Engineering

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SORI: A softness-rendering interface to unravel the nature of softness perception

Mete,

Jeong,

Wang

et al. 2024

Proc. Natl. Acad. Sci. U.S.A.

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Tactile perception of softness serves a critical role in the survival, well-being, and social interaction among various species, including humans. This perception informs activities from food selection in animals to medical palpation for disease detection in humans. Despite its fundamental importance, a comprehensive understanding of how softness is neurologically and cognitively processed remains elusive. Previous research has demonstrated that the somatosensory system leverages both cutaneous and kinesthetic cues for the sensation of softness. Factors such as contact area, depth, and force play a particularly critical role in sensations experienced at the fingertips. Yet, existing haptic technologies designed to explore this phenomenon are limited, as they often couple force and contact area, failing to provide a real-world experience of softness perception. Our research introduces the softness-rendering interface (SORI), a haptic softness display designed to bridge this knowledge gap. Unlike its predecessors, SORI has the unique ability to decouple contact area and force, thereby allowing for a quantitative representation of softness sensations at the fingertips. Furthermore, SORI incorporates individual physical fingertip properties and model-based softness cue estimation and mapping to provide a highly personalized experience. Utilizing this method, SORI quantitatively replicates the sensation of softness on stationary, dynamic, homogeneous, and heterogeneous surfaces. We demonstrate that SORI accurately renders the surfaces of both virtual and daily objects, thereby presenting opportunities across a range of fields, from teleoperation to medical technology. Finally, our proposed method and SORI will expedite psychological and neuroscience research to unlock the nature of softness perception.

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The Effect of Temperature on Tactile Softness Perception

Cited by 8 publications

References 38 publications

Enhancing Fingertip Tactile Sensitivity by Vibrotactile Noise and Cooling Skin Temperature Effect

Enhancing Fingertip Tactile Sensitivity by Vibrotactile Noise and Cooling Skin Temperature Effect

Robot soft thermal display using self-heating and cooling system

SORI: A softness-rendering interface to unravel the nature of softness perception

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