ShareYourReality: Investigating Haptic Feedback and Agency in Virtual Avatar Co-embodiment
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866910365689839616 |
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| author | Venkatraj, Karthikeya Puttur Meijer, Wo Perusquía-Hernández, Monica Huisman, Gijs Ali, Abdallah El |
| author_facet | Venkatraj, Karthikeya Puttur Meijer, Wo Perusquía-Hernández, Monica Huisman, Gijs Ali, Abdallah El |
| contents | Virtual co-embodiment enables two users to share a single avatar in Virtual Reality (VR). During such experiences, the illusion of shared motion control can break during joint-action activities, highlighting the need for position-aware feedback mechanisms. Drawing on the perceptual crossing paradigm, we explore how haptics can enable non-verbal coordination between co-embodied participants. In a within-subjects study (20 participant pairs), we examined the effects of vibrotactile haptic feedback (None, Present) and avatar control distribution (25-75%, 50-50%, 75-25%) across two VR reaching tasks (Targeted, Free-choice) on participants Sense of Agency (SoA), co-presence, body ownership, and motion synchrony. We found (a) lower SoA in the free-choice with haptics than without, (b) higher SoA during the shared targeted task, (c) co-presence and body ownership were significantly higher in the free-choice task, (d) players hand motions synchronized more in the targeted task. We provide cautionary considerations when including haptic feedback mechanisms for avatar co-embodiment experiences. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2403_08363 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | ShareYourReality: Investigating Haptic Feedback and Agency in Virtual Avatar Co-embodiment Venkatraj, Karthikeya Puttur Meijer, Wo Perusquía-Hernández, Monica Huisman, Gijs Ali, Abdallah El Human-Computer Interaction Computers and Society H.5.m Virtual co-embodiment enables two users to share a single avatar in Virtual Reality (VR). During such experiences, the illusion of shared motion control can break during joint-action activities, highlighting the need for position-aware feedback mechanisms. Drawing on the perceptual crossing paradigm, we explore how haptics can enable non-verbal coordination between co-embodied participants. In a within-subjects study (20 participant pairs), we examined the effects of vibrotactile haptic feedback (None, Present) and avatar control distribution (25-75%, 50-50%, 75-25%) across two VR reaching tasks (Targeted, Free-choice) on participants Sense of Agency (SoA), co-presence, body ownership, and motion synchrony. We found (a) lower SoA in the free-choice with haptics than without, (b) higher SoA during the shared targeted task, (c) co-presence and body ownership were significantly higher in the free-choice task, (d) players hand motions synchronized more in the targeted task. We provide cautionary considerations when including haptic feedback mechanisms for avatar co-embodiment experiences. |
| title | ShareYourReality: Investigating Haptic Feedback and Agency in Virtual Avatar Co-embodiment |
| topic | Human-Computer Interaction Computers and Society H.5.m |
| url | https://arxiv.org/abs/2403.08363 |