Experimental Brain Research

, Volume 198, Issue 2, pp 221–231

Perceived timing of vestibular stimulation relative to touch, light and sound

Research Article

DOI: 10.1007/s00221-009-1779-4

Cite this article as:
Barnett-Cowan, M. & Harris, L.R. Exp Brain Res (2009) 198: 221. doi:10.1007/s00221-009-1779-4

Abstract

Different senses have different processing times. Here we measured the perceived timing of galvanic vestibular stimulation (GVS) relative to tactile, visual and auditory stimuli. Simple reaction times for perceived head movement (438 ± 49 ms) were significantly longer than to touches (245 ± 14 ms), lights (220 ± 13 ms), or sounds (197 ± 13 ms). Temporal order and simultaneity judgments both indicated that GVS had to occur about 160 ms before other stimuli to be perceived as simultaneous with them. This lead was significantly less than the relative timing predicted by reaction time differences compatible with an incomplete tendency to compensate for differences in processing times.

Keywords

AuditionGalvanic vestibular stimulationMultisensorySimultaneity judgmentsTemporal order judgmentsTouchVestibularVision

Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  1. 1.Multisensory Integration Laboratory, Department of Psychology, Centre for Vision ResearchYork UniversityTorontoCanada