The subjective duration of audiovisual looming and receding stimuli

Grassi, Massimo and Pavan, Andrea (2012) The subjective duration of audiovisual looming and receding stimuli. Attention, Perception, and Psychophysics, 74 (6). pp. 1321-1333. ISSN 1943-3921

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Looming visual stimuli (log-increasing in proximal size over time) and auditory stimuli (of increasing sound intensity over time) have been shown to be perceived as longer than receding visual and auditory stimuli (i. e., looming stimuli reversed in time). Here, we investigated whether such asymmetry in subjective duration also occurs for audiovisual looming and receding stimuli, as well as for stationary stimuli (i. e., stimuli that do not change in size and/or intensity over time). Our results showed a great temporal asymmetry in audition but a null asymmetry in vision. In contrast, the asymmetry in audiovision was moderate, suggesting that multisensory percepts arise from the integration of unimodal percepts in a maximum-likelihood fashion. © 2012 Psychonomic Society, Inc.

Keywords:article, attention, auditory stimulation, depth perception, female, hearing, human, male, orientation, perception, perception disorder, photostimulation, sound detection, statistical model, time perception, vision, Acoustic Stimulation, Auditory Perception, Humans, Likelihood Functions, Loudness Perception, Perceptual Distortion, Photic Stimulation, Size Perception, Sound Localization, Visual Perception
Subjects:C Biological Sciences > C800 Psychology
Divisions:College of Science > School of Life Sciences
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ID Code:15488
Deposited On:06 Dec 2014 17:40

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