Perceptual synchrony of audiovisual streams for natural and artificial motion sequences
Year: 2006
Authors: Arrighi R., Alais D., Burr D.
Autors Affiliation: CNR – Istituto Nazionale di Ottica Applicata, Largo E. Fermi 6, 50125 Firenze, Italy;
Auditory Neuroscience Laboratory, Department of Physiology and Institute for Biomedical Research, School of Medical Science, University of Sydney, Sydney, Australia;
Istituto di Neuroscienze del CNR, Via Moruzzi 1, Pisa, Italy
Abstract: We investigated the conditions necessary for perceptual simultaneity of visual and auditory stimuli under natural conditions: video sequences of conga drumming at various rhythms. Under most conditions, the auditory stream needs to be delayed for sight and sound to be perceived simultaneously. The size of delay for maximum perceived simultaneity varied inversely with drumming tempo, from about 100 ms at 1 Hz to 30 ms at 4 Hz. Random drumming motion produced similar results, with higher random tempos requiring less delay. Video sequences of disk stimuli moving along a motion pro. le matched to the drummer produced near-identical results. When the disks oscillated at constant speed rather than following biological’’ speed variations, the delays necessary for perceptual synchrony were systematically less. The results are discussed in terms of real-world constraints for perceptual synchrony and possible neural mechanisms.
Journal/Review: JOURNAL OF VISION
Volume: 6 (3) Pages from: 260 to: 268
KeyWords: audiovisual temporal alignments; biological motionDOI: 10.1167/6.3.6ImpactFactor: 3.753Citations: 71data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-11-24References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here
