2012 volume 41(5) pages 577 – 593
doi:10.1068/p7184

Cite as:
Seno T, Hasuo E, Ito H, Nakajima Y, 2012, "Perceptually plausible sounds facilitate visually induced self-motion perception (vection)" Perception 41(5) 577 – 593
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Perceptually plausible sounds facilitate visually induced self-motion perception (vection)

Takeharu Seno, Emi Hasuo, Hiroyuki Ito, Yoshitaka Nakajima

Abstract. We examined whether and how sounds influence visually induced illusory self-motion (vection). Visual stimuli were presented for 40 s. They were made radially, expanding or contracting visual motion field and luminance-defined gratings drifting in a vertical or horizontal direction. Auditory stimuli were presented with the visual stimuli in most conditions; we employed sounds that increased or decreased in intensity, or ascended or descended in frequency. As a result, the sound which increased in intensity facilitated forward vection, and the sound which ascended/descended in frequency facilitated upward/downward vection. The perceptual plausibility of the sound for the corresponding self-motion seemed an important factor of enhancing vection.

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