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

ID: 269994.0, MPI für biologische Kybernetik / Biologische Kybernetik
Influence of Auditory Cues on the visually-induced Self-Motion Illusion (Circular Vection) in Virtual Reality
Authors:Riecke, B.; Schulte-Pelkum, J.; Caniard, F.; Bülthoff, H.
Date of Publication (YYYY-MM-DD):2005-09
Title of Proceedings:Proceedings of 8th international workshop on Presence 2005
Start Page:49
End Page:57
Physical Description:9
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:This study investigated whether the visually induced selfmotion
illusion (“circular vection”) can be enhanced by
adding a matching auditory cue (the sound of a fountain
that is also visible in the visual stimulus). Twenty observers
viewed rotating photorealistic pictures of a market place
projected onto a curved projection screen (FOV: 54°x45°).
Three conditions were randomized in a repeated measures
within-subject design: No sound, mono sound, and
spatialized sound using a generic head-related transfer
function (HRTF). Adding mono sound increased
convincingness ratings marginally, but did not affect any of
the other measures of vection or presence. Spatializing the
fountain sound, however, improved vection (convincingness
and vection buildup time) and presence ratings
significantly. Note that facilitation was found even though
the visual stimulus was of high quality and realism, and
known to be a powerful vection-inducing stimulus. Thus,
HRTF-based auralization using headphones can be
employed to improve visual VR simulations both in terms of
self-motion perception and overall presence.
External Publication Status:published
Document Type:Conference-Paper
Communicated by:Holger Fischer
Affiliations:MPI für biologische Kybernetik/Psychophysics (Dept. Bülthoff)
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