Persistent perceptual delay for head movement onset relative to auditory stimuli of different durations and rise times.

Experimental Brain Research
Michael Barnett-CowanH H Bülthoff

Abstract

The perception of simultaneity between auditory and vestibular information is crucially important for maintaining a coherent representation of the acoustic environment whenever the head moves. It has been recently reported, however, that despite having similar transduction latencies, vestibular stimuli are perceived significantly later than auditory stimuli when simultaneously generated. This suggests that perceptual latency of a head movement is longer than a co-occurring sound. However, these studies paired a vestibular stimulation of long duration (~1 s) and of a continuously changing temporal envelope with a brief (10-50 ms) sound pulse. In the present study, the stimuli were matched for temporal envelope duration and shape. Participants judged the temporal order of the two stimuli, the onset of an active head movement and the onset of brief (50 ms) or long (1,400 ms) sounds with a square- or raised-cosine-shaped envelope. Consistent with previous reports, head movement onset had to precede the onset of a brief sound by about 73 ms in order for the stimuli to be perceived as simultaneous. Head movements paired with long square sounds (~100 ms) were not significantly different than brief sounds. Surprisingly, head movements ...Continue Reading

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Citations

May 15, 2013·Experimental Brain Research·Florian SoykaMichael Barnett-Cowan
May 24, 2012·Journal of Visualized Experiments : JoVE·Michael Barnett-CowanHeinrich H Bülthoff
Sep 10, 2013·Experimental Brain Research·K N de WinkelP J Werkhoven
May 1, 2015·Journal of Neurophysiology·Ryan M PetersJean-Sébastien Blouin
Oct 16, 2018·Frontiers in Psychology·Toni Amadeus Bechtold, Olivier Senn
Jul 27, 2017·Experimental Brain Research·William Chung, Michael Barnett-Cowan

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