ShareYourReality: Investigating Haptic Feedback and Agency in Virtual Avatar Co-embodiment

• URL: http://arxiv.org/abs/2403.08363v1
• Date: Wed, 13 Mar 2024 09:23:53 GMT
• Title: ShareYourReality: Investigating Haptic Feedback and Agency in Virtual Avatar Co-embodiment
• Authors: Karthikeya Puttur Venkatraj, Wo Meijer, Monica Perusqu\'ia-Hern\'andez, Gijs Huisman and Abdallah El Ali
• Abstract summary: 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. We explore how haptics can enable non-verbal coordination between co-embodied participants.
• Score: 10.932344446402276
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: 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.

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