Proposal and Implementation of Non-grounded Translational Force and Torque Display Using Two Vibration Speakers

Tanabe, Takeshi; Yano, Hiroaki; Iwata, Hiroyasu

doi:10.1007/978-981-10-4157-0_32

Cited by 8 publications

(8 citation statements)

References 5 publications

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“…This participant reported introspectively after the experiment that he did not respond to the direction of the cue but rather to the side of the grip on which the vibration was strongly felt. We confirmed that illusory pulling cues were induced more clearly by the learning effect [33]. Therefore, to reduce individual differences in illusion, it is necessary to conduct sufficient procedures to familiarize users with the illusion in advance.…”

Section: A General Discussionsupporting

confidence: 69%

White Cane-Type Holdable Device Using Illusory Pulling Cues for Orientation & Mobility Training

et al. 2023

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For visually impaired people, a white cane is an important aid for obtaining information about the surrounding environment. Although the visually impaired should attend this training by orientation & mobility (O&M) specialists to learn proper cane technique, the number of specialists is limited. In our previous study, we developed a training system that enabled the visually impaired to learn white cane techniques using illusory pulling cues. In the previous prototype system, a cane grip-type device was developed with a built-in vibrator to generate asymmetric vibration stimuli, and illusory pulling cues were fed according to the position of the cane tip. Although the prototype system showed positive results, issues related to the lack of user-friendliness of the device associated with the wired drive and the impractical gripping method were observed. This study developed a more practical white-cane-type device for O&M training, envisioning independent training for the visually impaired, which improved the above-mentioned issues. Specifically, the device was wireless and had a vibration mechanism for the gripping method of the general cane technique, and its validity was demonstrated by evaluation experiments. In addition, the paper explains the usefulness of the device as per discussion with active O&M specialists. The results of the evaluation experiments indicated that the devices were implemented to satisfy the requirements for cane training.INDEX TERMS Illusory force sensation, touch technique, training system, white cane.

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Section: A General Discussionsupporting

confidence: 69%

White Cane-Type Holdable Device Using Illusory Pulling Cues for Orientation & Mobility Training

et al. 2023

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“…The effect of the pulling illusion on aging is unknown because the participants of this article were young. On the other hand, we have performed a hands-on demonstration of the pulling illusion for participants in a wide range of ages, and the illusion was experienced by all participants [5]. Therefore, the basic characteristics of the illusion might be applicable to older users.…”

Section: A Relationship Between the Phase Difference And The Pulling ...mentioning

confidence: 99%

“…Amemiya et al showed that user perceive asymmetric vibration stimuli as an illusory pulling force [4]. Moreover, torque can be simulated, insofar as the wrist joints are twisted, by a combination of two pulling force vectors [5], [6]. Since the report published by Amemiya et al, many haptic interfaces utilizing asymmetric vibration have been proposed [7], [8].…”

mentioning

confidence: 99%

Pulling Illusion Based on the Phase Difference of the Frequency Components of Asymmetric Vibrations

Tanabe

Yano

Endô

et al. 2021

IEEE/ASME Trans. Mechatron.

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When presented with asymmetric vibrations, humans experience an illusory force, similar to the sensation of being pulled in a particular direction. A pulling illusion has also been used in new display elements for a virtual reality content and a pedestrian navigation system. However, the basic design of asymmetric vibration stimuli that can induce this illusion has not yet been determined. In particular, it is unclear as to which part of the vibration waveform should be asymmetric to induce an illusion. To better understand the design of asymmetric vibration stimuli that can induce a pulling illusion, we evaluated the effect of the illusion corresponding to the waveform deformation due to a change in phase difference of asymmetric-vibration frequency components. The results of a psychophysical experiment demonstrate that when the phase differences of the fundamental and second harmonic waves of the asymmetric vibration are close to 0 • or −180 • , the illusion is more likely to occur. This result implies that the difference in the rate by which the acceleration changes at each polarity contributes to the illusion.

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“…More details of this device can be found in Ref. [11]. The transmitter of the motion sensor and map were set on the table in front of the participants (Fig.1 (a)).…”

Section: Participantmentioning

confidence: 99%

“…Furthermore, we previously proposed a method of inducing pulling illusion by using a small voice-coil-type vibrator [10]. In addition, we developed a holdable device that presents an illusory translational force and torque by combining the two force vectors [11]. A new motion guidance method can be developed based on this pulling illusion for applications such as rehabilitation and skill transfer because compelling directional information can be easily provided to the fingertips by only vibration stimuli.…”

Section: Introductionmentioning

confidence: 99%

Motion Guidance Using Translational Force and Torque Feedback by Induced Pulling Illusion

Tanabe

Yano

Endô

et al. 2020

Haptics: Science, Technology, Applications

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It is known that humans experience a kinesthetic illusion similar to a pulling sensation in a particular direction, when subjected to asymmetric vibrations. In our previous study, we developed a device that can apply a translational force and a torque to induce this illusion. The illusory translational force might induce a reaching motion of the upper limb, and the applied torque might induce a flexion-extension motion of the wrist. In the present study, we experimentally verified whether these motions can be induced. The results confirmed that the device could guide the upper limb with a success rate of 94.3% when switching between the application of the translational force and the torque. The results suggested that torque application could be a cue for the user to determine the movement direction intuitively.

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Proposal and Implementation of Non-grounded Translational Force and Torque Display Using Two Vibration Speakers

Cited by 8 publications

References 5 publications

White Cane-Type Holdable Device Using Illusory Pulling Cues for Orientation & Mobility Training

White Cane-Type Holdable Device Using Illusory Pulling Cues for Orientation & Mobility Training

Pulling Illusion Based on the Phase Difference of the Frequency Components of Asymmetric Vibrations

Motion Guidance Using Translational Force and Torque Feedback by Induced Pulling Illusion

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