Sensory Perception During Partial Pseudo-Haptics Applied to Adjacent Fingers

Pseudo-haptics, the phenomenon of creating a simulated tactile sensation by introducing a discrepancy between a voluntary movement and its visual feedback, is well known. Typically, when inducing pseudo-haptics, the same control-display ratio (C/D ratio) is applied to all effectors. However, with th...

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Main Authors: Satoshi Saga, Kotaro Sakae
Format: Article
Language:English
Published: MDPI AG 2025-02-01
Series:Multimodal Technologies and Interaction
Subjects:
Online Access:https://www.mdpi.com/2414-4088/9/3/19
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author Satoshi Saga
Kotaro Sakae
author_facet Satoshi Saga
Kotaro Sakae
author_sort Satoshi Saga
collection DOAJ
description Pseudo-haptics, the phenomenon of creating a simulated tactile sensation by introducing a discrepancy between a voluntary movement and its visual feedback, is well known. Typically, when inducing pseudo-haptics, the same control-display ratio (C/D ratio) is applied to all effectors. However, with the aim of expanding the potential illusions that can be presented with pseudo-haptics, we investigated how perceived sensations change when partial pseudo-haptics are applied to adjacent body parts. In this research, we examined how perceived sensations change when pseudo-haptic stimuli are applied to adjacent body parts. Specifically, we investigated the correlation between finger states and the magnitude of illusory perception during both quasi-static and dynamic movements and identified the finger that experienced discomfort during dynamic movements with pseudo-haptics. Our findings revealed that: First, the magnitude of the illusion varied based on the contact state of adjacent fingers. Second, the illusion was more pronounced during dynamic movements compared to quasi-static movements. Third, regardless of the finger receiving the pseudo-haptic stimulus, the discomfort was primarily experienced in the finger exhibiting an overall inhibitory movement. The findings contribute to the practical application of pseudo-haptics as a virtual haptic display technology.
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spelling doaj-art-86131659bb5d46089567acc15dfcf1672025-08-20T03:43:20ZengMDPI AGMultimodal Technologies and Interaction2414-40882025-02-01931910.3390/mti9030019Sensory Perception During Partial Pseudo-Haptics Applied to Adjacent FingersSatoshi Saga0Kotaro Sakae1Faculty of Advanced Science and Technology, Kumamoto University, 2-39-1, Kurokami, Kumamoto 860-8555, JapanDentsu Soken Secure Solutions Inc., 17-1, Konan 2-chome, Minato-ku, Tokyo 108-0075, JapanPseudo-haptics, the phenomenon of creating a simulated tactile sensation by introducing a discrepancy between a voluntary movement and its visual feedback, is well known. Typically, when inducing pseudo-haptics, the same control-display ratio (C/D ratio) is applied to all effectors. However, with the aim of expanding the potential illusions that can be presented with pseudo-haptics, we investigated how perceived sensations change when partial pseudo-haptics are applied to adjacent body parts. In this research, we examined how perceived sensations change when pseudo-haptic stimuli are applied to adjacent body parts. Specifically, we investigated the correlation between finger states and the magnitude of illusory perception during both quasi-static and dynamic movements and identified the finger that experienced discomfort during dynamic movements with pseudo-haptics. Our findings revealed that: First, the magnitude of the illusion varied based on the contact state of adjacent fingers. Second, the illusion was more pronounced during dynamic movements compared to quasi-static movements. Third, regardless of the finger receiving the pseudo-haptic stimulus, the discomfort was primarily experienced in the finger exhibiting an overall inhibitory movement. The findings contribute to the practical application of pseudo-haptics as a virtual haptic display technology.https://www.mdpi.com/2414-4088/9/3/19partial pseudo-hapticsmulti-finger interactionsdynamic movements
spellingShingle Satoshi Saga
Kotaro Sakae
Sensory Perception During Partial Pseudo-Haptics Applied to Adjacent Fingers
Multimodal Technologies and Interaction
partial pseudo-haptics
multi-finger interactions
dynamic movements
title Sensory Perception During Partial Pseudo-Haptics Applied to Adjacent Fingers
title_full Sensory Perception During Partial Pseudo-Haptics Applied to Adjacent Fingers
title_fullStr Sensory Perception During Partial Pseudo-Haptics Applied to Adjacent Fingers
title_full_unstemmed Sensory Perception During Partial Pseudo-Haptics Applied to Adjacent Fingers
title_short Sensory Perception During Partial Pseudo-Haptics Applied to Adjacent Fingers
title_sort sensory perception during partial pseudo haptics applied to adjacent fingers
topic partial pseudo-haptics
multi-finger interactions
dynamic movements
url https://www.mdpi.com/2414-4088/9/3/19
work_keys_str_mv AT satoshisaga sensoryperceptionduringpartialpseudohapticsappliedtoadjacentfingers
AT kotarosakae sensoryperceptionduringpartialpseudohapticsappliedtoadjacentfingers