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Towards tactile displays of spatiotemporal social cues

  • Facial expressions play a dominant role in facilitating social interactions. We endeavor to develop tactile displays to reinstate facial expression modulated communication. The high spatial and temporal dimensionality of facial movements poses a unique challenge when designing tactile encodings of them. A further challenge is developing encodings that are at-tuned to the perceptual characteristics of our skin. A caveat of using vibrotactile displays is that tactile stimuli have been shown to induce perceptual tactile aftereffects when used on the fingers, arm and face. However, at present, despite the prevalence of waist-worn tactile displays, no such investigations of tactile aftereffects at the waist region exist in the literature, though they are warranted by the unique sensory and perceptual signalling characteristics of this area. Using an adaptation paradigm we investigated the presence of perceptual tactile aftereffects induced by continuous and burst vibrotactile stimuli delivered at the navel, side and spinal regions of the waist. We report evidence that the tactile perception topology of the waist is non-uniform, and specifically that the navel and spine regions are resistant to adaptive aftereffects while side regions are more prone to perceptual adaptations to continuous but not burst stimulations. Results of our current investigations highlight the unique set of challenges posed by designing waist-worn tactile displays. These and future perceptual studies can directly inform more realistic and effective implementations of complex high-dimensional spatiotemporal social cues.

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Author of HS ReutlingenThalji, Salma; Curio, Cristóbal
Erschienen in:Designing digital touch: social and sensory aspects and challenges : proceedings of EuroHaptics 2020, 6-9 September 2020, Leiden, Netherlands
Publisher:Universität des Saarlandes
Place of publication:Saarland
Document Type:Conference proceeding
Publication year:2020
Tag:cognition; perception and psychophysics; social tactile displays
Page Number:4
First Page:1
Last Page:4
DDC classes:004 Informatik
Open access?:Ja
Licence (German):License Logo  Open Access