The Hand is Slower than the Eye: A Quantitative Exploration of Visual Dominance over Proprioception

Authors:
Eric Burns;Abigail T. Panter;Matthew R. McCallus;Frederick P. Brooks, Jr.
Affiliations:
University of North Carolina at Chapel Hill;University of North Carolina at Chapel Hill;University of North Carolina at Chapel Hill;University of North Carolina at Chapel Hill
Venue:
VR '05 Proceedings of the 2005 IEEE Conference 2005 on Virtual Reality
Year:
2005

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Abstract

Without force feedback, a head-mounted display user's avatar may penetrate virtual objects. Some virtual environment designers prevent visual interpenetration, making the assumption that prevention improves user experience. However, preventing visual avatar interpenetration causes discrepancy between visual and proprioceptive cues. We investigated usersý detection thresholds for visual interpenetration (the depth at which they see that two objects have interpenetrated) and sensory discrepancy (the displacement at which they notice mismatched visual and proprioceptive cues). We found that users are much less sensitive to visual-proprioceptive conflict than they are to visual interpenetration. We present our plan for using this result to create a better technique for dealing with virtual object penetration.