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|
|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|
|Communicated by:||Holger Fischer|
|Affiliations:||MPI für biologische Kybernetik/Psychophysics (Dept. Bülthoff)|
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