Perceived timing of vestibular stimulation relative to touch, light and sound
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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.
KeywordsAudition Galvanic vestibular stimulation Multisensory Simultaneity judgments Temporal order judgments Touch Vestibular Vision
This work was supported by the Natural Sciences and Engineering Research Council of Canada (NSERC). M. Barnett-Cowan was supported by a PGS-D3 NSERC Scholarship and a Canadian Institutes of Health Research Vision Health Science Training Grant. Our thanks go to Michael Jenkin for technical assistance, to Jeff Sanderson who helped conduct experiments and to David Shore for comments on this project.
- Allan LG (1975) The relationship between judgments of successiveness and judgments of order. Percept Psychophys 18:29–36Google Scholar
- Alvarez-Buylla R, de Arellano JR (1952) Local responses in Pacinian corpuscles. Am J Physiol 172:237–244Google Scholar
- Bekesy GV (1963) Interaction of paired sensory stimuli and conduction in peripheral nerves. J Appl Physiol 18:1276–1284Google Scholar
- Bergenheim M, Johansson H, Granlund B, Pederson J (1996) Experimental evidence for a synchronization of sensory information to conscious experience. In: Hameroff SR, Kaszniak AW, Scott AC (eds) Toward a science of consciousness: the first Tucson discussions and debates. MIT Press, Cambridge, pp 303–310Google Scholar
- Buys E (1909) Beitrag zum Studium des galvanischen Nystagmus mit hilfe der Nystagmographie. Mschr Ohrenheilk 43:801–803Google Scholar
- Capelli A, Deborne R, Israël I (2007) Temporal intervals production during passive self-motion in darkness. Curr Psychol Lett 22Google Scholar
- Exner S (1868) Über die zu einer Gesichtswahrnehmung nöthige Zeit. Wiener Sitzungsberichte der Mathematisch-Naturwissenschaftlichen Classe der Kaiserlichen Akademie der Wissenschaften 58:601–632Google Scholar
- Lorente de No R (1933) Vestibulo-ocular reflex arc. Arch Neurol Psychiat 30:245–291Google Scholar