Perceptually Plausible Sounds Facilitate Visually Induced Self-Motion Perception (Vection)

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...

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Bibliographic Details
Published in:Perception (London) 2012-01, Vol.41 (5), p.577-593
Main Authors: Seno, Takeharu, Hasuo, Emi, Ito, Hiroyuki, Nakajima, Yoshitaka
Format: Article
Language:English
Subjects:
Adult
Auditory Perception
Awareness
Contrast Sensitivity
Distance Perception
Female
Humans
Illusions
Kinesthesis
Loudness Perception
Male
Motion Perception
Orientation
Pattern Recognition, Visual
Sound Spectrography
Young Adult
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Summary: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.
ISSN:0301-0066
1468-4233
DOI:10.1068/p7184