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Double-Sided Tactile Interactions for Grasping in Virtual Reality

Published: 29 October 2023 Publication History
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  • Abstract

    For grasping, tactile stimuli to multiple fingertips are crucial for realistic shape rendering and precise manipulation. Pinching is particularly important in virtual reality since it is frequently used to grasp virtual objects. However, the interaction space of tactile feedback around pinching is underexplored due to a lack of means to provide co-located but different stimulation to finger pads. We propose a double-sided electrotactile device with a thin and flexible form factor to fit within pinched fingerpads, comprising two overlapping 3 × 3 electrode arrays. Using this new tactile interface, we define a new concept of double-sided tactile interactions with three feedback modes: (1) single-sided stimulation, (2) simultaneous double-sided stimulation, and (3) spatiotemporal double-sided stimulation. Through two user studies, we (1) demonstrate that participants can accurately discriminate between single-sided and double-sided stimulation and find a qualitative difference in tactile sensation; and (2) confirm the occurrence of apparent tactile motion between fingers and present optimal parameters for continuous or discrete movements. Based on these findings, we demonstrate five VR applications to exemplify how double-sided tactile interactions can produce spatiotemporal movement of a virtual object between fingers and enrich touch feedback for UI operation.

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      cover image ACM Conferences
      UIST '23: Proceedings of the 36th Annual ACM Symposium on User Interface Software and Technology
      October 2023
      1825 pages
      ISBN:9798400701320
      DOI:10.1145/3586183
      This work is licensed under a Creative Commons Attribution-NonCommercial International 4.0 License.

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      Published: 29 October 2023

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      Author Tags

      1. Haptics
      2. double-sided
      3. electrotactile stimulation
      4. skin.
      5. tactile display
      6. virtual reality

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