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          Institute: MPI für biologische Kybernetik     Collection: Biologische Kybernetik     Display Documents

ID: 312079.0, MPI für biologische Kybernetik / Biologische Kybernetik
Cognitive Factors can Influence Self-Motion Perception (Vection) in Virtual Reality
Authors:Riecke, B.E.; Schulte-Pelkum, J.; Avraamides, M.N.; von der Heyde, M.; Bülthoff, H.H.
Date of Publication (YYYY-MM-DD):2006-07
Title of Journal:ACM Transactions on Applied Perception
Issue / Number:3
Start Page:194
End Page:216
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:Research on self-motion perception and simulation has traditionally focussed on the contribution of physical stimulus properties (bottom-up factors) using abstract stimuli. Here, we demonstrate that cognitive (top-down) mechanisms like ecological relevance and presence evoked by a virtual environment can also enhance visually induced self-motion illusions (vection). In two experiments, naive observers were asked to rate presence and the onset, intensity, and convincingness of circular vection induced by different rotating visual stimuli presented on a curved projection screen (FOV: 54°×45°). Globally consistent stimuli depicting a natural 3D scene proved more effective in inducing vection and presence than inconsistent (scrambled) or unnatural (upside-down) stimuli with similar physical stimulus properties. Correlation analyses suggest a direct relationship between spatial presence and vection. We propose that the spatial reference frame evoked by the naturalistic environment increased the believability of
the visual stimulus, such that it was more easily accepted as a stable scene with respect to which visual motion is more likely to be judged as self-motion than object-motion. This work extends our understanding of mechanisms underlying self-motion perception, and might thus help to improve the effectiveness and believability of Virtual Reality applications.
External Publication Status:published
Document Type:Article
Communicated by:Holger Fischer
Affiliations:MPI für biologische Kybernetik/Psychophysics (Dept. Bülthoff)
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