Design of a Wearable Haptic Device to Mediate Affective Touch with a Matrix of Linear Actuators

Ferguson, Nikolas; Cansev, Mehmet Ege; Dwivedi, Anany; Beckerle, Philipp

doi:10.1007/978-3-031-16281-7_48

Cited by 4 publications

(3 citation statements)

References 18 publications

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“…Specifically for the forearm, different systems were investigated, mainly with vibration [16], [28]- [30]. Recent developments have focused more on slow to static pressure cues, actuated by shape memory alloys [31], linear actuators [32], pneumatic actuators [33] or voice coil actuators [7], [34]. The objective of the latter investigations was to achieve a more authentic reproduction in comparison to vibration.…”

Section: A Affective Touch Reproductionmentioning

confidence: 99%

Phantom Illusion Based Vibrotactile Rendering of Affective Touch Patterns

Kirchner,

Rosenkranz,

Sousa

et al. 2024

IEEE Trans. Haptics

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Physically accurate (authentic) reproduction of affective touch patterns on the forearm is limited by actuator technology. However, in most VR applications a direct comparison with actual touch is not possible. Here, the plausibility is only compared to the user's expectation. Focusing on the approach of plausible instead of authentic touch reproduction enables new rendering techniques, like the utilization of the phantom illusion to create the sensation of moving vibrations. Following this idea, a haptic armband array (4x2 vibrational actuators) was built to investigate the possibilities of recreating plausible affective touch patterns with vibration. The novel aspect of this work is the approach of touch reproduction with a parameterized rendering strategy, enabling the integration in VR. A first user study evaluates suitable parameter ranges for vibrational touch rendering. Duration of vibration and signal shape influence plausibility the most. A second user study found high plausibility ratings in a multimodal scenario and confirmed the expressiveness of the system. Rendering device and strategy are suitable for a various stroking patterns and applicable for emerging research on social affective touch reproduction.

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Section: A Affective Touch Reproductionmentioning

confidence: 99%

Phantom Illusion Based Vibrotactile Rendering of Affective Touch Patterns

Kirchner,

Rosenkranz,

Sousa

et al. 2024

IEEE Trans. Haptics

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“…To reveal the potential benefits of affective touch, we developed a prototype that stimulates either the lower or upper arm of a user so that it can be tested with different amputations [10]. Our design stimulates the mechanoreceptors on the skin in a realistic human-like manner as if fingers are touching the skin by using linear actuators and silicone coating.…”

Section: Force Sensing For Enhanced Embodimentmentioning

confidence: 99%

P55 - Perspectives on Use of Resistive Force Sensing to Improve the Control and User Experience of Hand Prostheses

Andreas¹,

Beckerle²,

Cansev³

et al. 2023

Poster

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“…Recent studies have demonstrated the generation of a stroking sensation on the arm using only normal force [38]. An example of wearable device able to perform skin indentation to simulate a stroking sensation using a matrix of linear actuators is in [39].…”

Section: Introductionmentioning

confidence: 99%

On the Correlation Between Tactile Stimulation and Pleasantness

D'Aurizio,

Ramundo,

Baldi

et al. 2023

IEEE Trans. Haptics

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Several studies in the affective haptics research field showed the potentiality of using haptic technology to convey emotions in remote communications. In this context, it is of interest to simplify the haptic feedback without altering the informative content of the stimulus, with a two-fold advantage. On one side, it would allow to develop affective haptic devices whose technological complexity is limited, hence more compatible with wearability and portability requirements. On the other side, having a simplified set of stimuli would decrease the amount of data to be transmitted, thus improving the overall quality of remote haptic interactions.In this work, we investigated the correlation between the parameters regulating a caress-like stimulation and the perceived pleasantness. This was done by means of two experiments, in which we asked subjects to adjust the temperature and the motion velocity of a set of stimuli in order to find the most pleasant combination. Results indicated that subjects preferred different values of temperature and velocity of the stimulus depending on the proposed tactile stimulation. A small difference in the pleasantness ratings was observed between caresses provided with linear movements and those given as discrete sequences of taps. In particular, participants preferred linear movements set at 34.5 • C and 3.4 cm s −1 . As regards caress-like stimuli provided with discrete sequences of taps, the preferred temperature and velocity were 33.2 • C and 2.9 cm s −1 , respectively. The presence of vibration had a little effect on the perceived pleasantness.

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Design of a Wearable Haptic Device to Mediate Affective Touch with a Matrix of Linear Actuators

Cited by 4 publications

References 18 publications

Phantom Illusion Based Vibrotactile Rendering of Affective Touch Patterns

Phantom Illusion Based Vibrotactile Rendering of Affective Touch Patterns

P55 - Perspectives on Use of Resistive Force Sensing to Improve the Control and User Experience of Hand Prostheses

On the Correlation Between Tactile Stimulation and Pleasantness

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