Can auditory cues influence the visually induced self-motion illusion?
” Perception 34 ECVP Abstract Supplement Can auditory cues influence the visually induced self-motion illusion? J Schulte-Pelkum, B E Riecke, F Caniard, H Bülthoff It is well known that a moving visual stimulus covering a large part of the visual field can induce compelling illusions of self-motion (‘vection’). Lackner (1977 Aviation Space and Environmental Medicine 48 129 – 131) showed that sound sources rotating around a blindfolded person can also induce vection. In the current study, we investigated visuo-auditory interactions for circular vection by testing whether adding an acoustic landmark that moves together with the visual stimulus enhances vection. Twenty observers viewed a photorealistic scene of a market place that was projected onto a curved projection screen (FOV 54 deg × 40 deg). In each trial, the visual scene rotated at 30° s-1 around the Earth’s vertical axis. Three conditions were randomised in a within-subjects design: no-sound, mono-sound, and spatialised-sound (m
