Volume 7, Number 13, Article 5, Pages 1-8 doi:10.1167/7.13.5 http://journalofvision.org/7/13/5/ ISSN 1534-7362
Adaptation minimizes distance-related audiovisual delays
James Heron
Department of Optometry, University of Bradford, Bradford, UK
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David Whitaker
Department of Optometry, University of Bradford, Bradford, UK
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Paul V. McGraw
Visual Neuroscience Group, School of Psychology, University of Nottingham, University Park, Nottingham, UK
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Kirill V. Horoshenkov
School of Engineering, Design and Technology, University of Bradford, Bradford, UK
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Abstract

A controversial hypothesis within the domain of sensory research is that observers are able to use visual and auditory distance cues to maintain perceptual synchrony—despite the differential velocities of light and sound. Here we show that observers are categorically unable to utilize such distance cues. Nevertheless, given a period of adaptation to the naturally occurring audiovisual asynchrony associated with each viewing distance, a temporal recalibration mechanism helps to perceptually compensate for the effects of distance-induced auditory delays. These effects demonstrate a novel functionality of temporal recalibration with clear ecological benefits.

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History
Received November 6, 2006; published October 17, 2007
Citation
Heron, J., Whitaker, D., McGraw, P. V., & Horoshenkov, K. V. (2007). Adaptation minimizes distance-related audiovisual delays. Journal of Vision, 7(13):5, 1-8, http://journalofvision.org/7/13/5/, doi:10.1167/7.13.5.
Keywords
sound, vision, audiovisual, perceptual time, distance, multisensory, cross-modal
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