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Avatars in Immersive Virtual Environments


Mohler,  BJ
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Mohler, B. (2009). Avatars in Immersive Virtual Environments. Talk presented at Brown University: Department of Cognitive Linguistic Sciences. Providence, RI, USA.

Few HMD-based virtual environment systems display a rendering of the user’s own body. Subjectively, this often leads to a sense of disembodiment in the virtual world. We explore the effect of being able to see one’s own body in such systems on an objective measure of the accuracy of one form of space perception. Using an action-based response measure, we found that participants who explored near space while seeing fully-articulated and tracked visual representation of themselves subsequently made more accurate judgments of absolute egocentric distance to locations ranging from 4m to 6m away from where they were standing than did participants who saw no avatar. A non-animated avatar also improved distance judgments, but by a lesser amount. Participants who viewed either animated or static avatars positioned 3m in front of their own position made subsequent distance judgments with similar accuracy to the participants who viewed the equivalent animated or static avatar positioned at their own location. I will discuss the implications of these results on theories of embodied perception in virtual environments.