Movement-Free Virtual Reality Interface Using Kinesthetic Illusion Induced by Tendon Vibration

Tanaka, Satoshi; Ushiyama, Keigo; Takahashi, Akifumi; Kajimoto, Hiroyuki

doi:10.1007/978-3-030-58147-3_35

Cited by 4 publications

(2 citation statements)

References 14 publications

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“…They applied tendon vibrations to the forearm while experiencing a VR environment through an HMD to induce a perception of motion that is approximately 20 degrees greater than the actual elbow angle. In addition, we [18] proposed a VR system that provides visual stimuli and tendon vibration in response to the force exerted by the user, giving the user the sensation of freely moving the arm even when the body is completely fixed. Leonardis et al [3] proposed a method to present the sensation of walking in a seated position by combining tendon vibration in the legs with visual and vestibular stimuli.…”

Section: B Application Of Kinesthetic Illusion In Engineeringmentioning

confidence: 99%

Measurement of the Transfer Function of Kinesthetic Illusion Induced by Antagonistic Tendon Vibration

Tanaka,

Kajimoto

2023

IEEE Access

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The kinesthetic illusion induced by tendon vibration has the potential to be applied to virtual reality because it can provide the sensation of motion without the need to actually move the body. The psychophysical and neurophysiological properties of this phenomenon have been studied for a long time, and more recently, research has been conducted to realize the presentation of complex motion. However, there is still a lack of knowledge that quantitatively relates time-varying vibratory stimuli to the resulting kinesthesia. In response to this situation, we experimentally quantify the relationship between the time-varying frequency of the vibratory stimuli and the perceived joint angle, as a transfer function which is directly applicable to the presentation of kinesthetic illusions. To minimize temporal error, we presented vibration stimuli to one arm and a physical motion to the other arm, and asked participants to adjust the amplitude and phase of the physical motion so that the sensations of the two stimuli matched. The transfer function obtained from the experiment was nearly constant between the presented reciprocating frequencies of 0.05 Hz and 0.30 Hz, with a flat amplitude response and a phase advance of approximately 180 degrees. This transfer function represents motion in the opposite direction to that expected from existing knowledge. Possible reasons for this could be the induction of motion in the opposite direction by the tonic vibration reflex, misunderstanding by the participants, or the generation of an illusory force sensation due to the activation of the Golgi tendon organs.

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Section: B Application Of Kinesthetic Illusion In Engineeringmentioning

confidence: 99%

Measurement of the Transfer Function of Kinesthetic Illusion Induced by Antagonistic Tendon Vibration

Tanaka,

Kajimoto

2023

IEEE Access

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“…This phenomenon is presumed to be due to the activation of the muscle spindle (Seki et al, 2011). In some recent studies, tendon vibration has been utilised in VR experiences to present a sensation of body movement, with only small motion or even without any actual motion occurring (Hagimori et al, 2019;Tanaka et al, 2020). However, if tendon vibration is applied to ankle joints, the mechanical vibrators must be fixed to the tendons around the ankle, making it difficult for users to move smoothly in a standing posture.…”

Section: Introductionmentioning

confidence: 99%

Sensation of Anteroposterior and Lateral Body Tilt Induced by Electrical Stimulation of Ankle Tendons

Takahashi

Amemiya

Narumi

et al. 2022

Front. Virtual Real.

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While virtual reality technology enables users to walk on surfaces of various shapes in virtual environments, these experiences are often on a flat floor, and any discordance between visual and somatosensory information hampers the immersive experience. To resolve this issue, we have focused on the ankle joint angle as an essential cue in detecting the surface shape of the ground. To modulate the sensation of the ankle joint angle, we propose novel percutaneous electrical stimulation methods that stimulate four targeted ankle tendons: the tibialis anterior muscle tendon, the Achilles tendon, the peroneus longus muscle tendon, and the flexor digitorum longus tendon. Since electrically stimulating the elbow tendon is known to evoke reflexive hand movement, electrically stimulating the ankle tendon is expected to evoke a body tilt due to illusory changes in the ankle joint angle. In this study, we designed electrode configurations to stimulate the above four ankle tendons using a finite element analysis and investigated the effect of electrically stimulating the ankle tendons on the subjective sensation of body tilt and actual body sway through psychophysical experiments. The results revealed that applying this stimulation with our novel electrode configurations can induce a subjective sensation of body tilt and actual body sway in a direction opposite to the stimulated part.

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A Study on Reducing Skin Irritation in Multi-Channel TES for Painless Force Feedback

Yu,

Kim,

Kim

et al. 2023

2023 Fourteenth International Conference on Ubiquitous and Future Networks (ICUFN)

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Movement-Free Virtual Reality Interface Using Kinesthetic Illusion Induced by Tendon Vibration

Cited by 4 publications

References 14 publications

Measurement of the Transfer Function of Kinesthetic Illusion Induced by Antagonistic Tendon Vibration

Measurement of the Transfer Function of Kinesthetic Illusion Induced by Antagonistic Tendon Vibration

Sensation of Anteroposterior and Lateral Body Tilt Induced by Electrical Stimulation of Ankle Tendons

A Study on Reducing Skin Irritation in Multi-Channel TES for Painless Force Feedback

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