The Role of Interaction in Virtual Embodiment: Effects of the Virtual Hand Representation.
In this report a few experimentations were performed to further understand the visuo-tactility and visuomotor reflections through the use of a virtual hand. The first experiment was to grasp a virtual cube and move it in a inductive way to avoid a virtual barbed wire. The second was to gather information from the subject who was instructed to put their hand near a spinning saw. Both of the experiments were made to collect information about the agency and ownership that the subject had to the virtual hand.
The use of introduction of the viewer in virtual realities has excited both the psychological research and virtual research communities.
The questions that are raised are around whether the avatar is able to change the perception of the human and/or behaviour.
The study was split into two categories to understand the embodied potentials of the virtual extension:
Sense of agency; being in control
Sense of ownership; the feeling that the virtual had is a source of experienced sensations.
Virtual Grasping:
Grasping is is one of the most acted expression of everyday where we connect with the objects around us. Still the visual representation of the hand needs much work. They explain that in this work they are solely working on the ego-centric manipulation techniques.
Embodiment:
They describe the phenomena of embodiment being a complex, including the sense of self-location, the sense of body ownership and the sense of agency. While motor and and spatial influences directly link to ones sense of embodiment, the sense of ownership of the body is linked to the affectivenss of coordination between the mind and the limb.
Self-location:
Self location is the space where we understand that we are located. This is similarly linked to the way that we interpret our bodies spatial mass, with reference to other spatial aspects. They explain an experiment was performed where the physical human hand was hidden and replaced with a rubber hand and the vestibular cues (balance and spatial orientation)
Agency:
Argelaguet, F., L. Hoyet, M. Trico, and A. Lecuyer. “The Role of Interaction in Virtual Embodiment: Effects of the Virtual Hand Representation.” In 2016 IEEE Virtual Reality (VR), 3–10, 2016. https://doi.org/10.1109/VR.2016.7504682.
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