The means by which an individual distinguishes between (a) self-movement relative to a fixed external object and (b) a fixed sense of self relative to a moving object involves both sensory input and cognitive processes. The current study examines the cognitive influences of an auditory presentation on the illusion of motion. The illusion of self-motion was strongest when simulating multiple auditory objects of the type that are expected to be immobile: acoustic landmarks. The effect is strongest without visual cues, which can dominate if present. The addition of vibrotactile stimulation of the whole body was only selectively contributing to the experience of being in motion depending on the simulated auditory objects.
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