Towards a Framework for Embodying Any-Body through Sensory Translation and Proprioceptive Remapping: A Pilot Study

We address the problem of physical avatar embodiment and investi- gate the most general factors that may allow a person to “wear” an- other body, different from her own. A general approach is required to exploit the fact that an avatar can have any kind of body. With this pilot study we introduce a conceptual framework for the design of non-anthropomorphic embodiment, to foster immersion and user engagement. The person is interfaced with the avatar, a robot, through a system that induces a divergent internal sensorimotor mapping while controlling the avatar, to create an immersive expe- rience. Together with the conceptual framework, we present two implementations: a prototype tested in the lab and an interactive in- stallation exhibited to general public. These implementations consist of a wheeled robot, and control and sensory feedback systems. The control system includes mechanisms that both detect and resist the user’s movement, increasing the sense of connection with the avatar; the feedback system is a virtual reality (VR) environment represent- ing the avatar’s unique perception, combining sensor and control in- formation to generate visual cues. Data gathered from users indicate that the systems implemented following the proposed framework create a challenging and engaging experience, thus providing solid ground for further developments.