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How the vestibular system interacts with somatosensory perception: A sham-controlled study with galvanic vestibular stimulation.

Ferrè, ER; Day, BL; Bottini, G; Haggard, P; (2013) How the vestibular system interacts with somatosensory perception: A sham-controlled study with galvanic vestibular stimulation. Neurosci Lett , 550 pp. 35-40. 10.1016/j.neulet.2013.06.046. Green open access

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Abstract

The vestibular system has widespread interactions with other sensory modalities. Here we investigate whether vestibular stimulation modulates somatosensory function, by assessing the ability to detect faint tactile stimuli to the fingertips of the left and right hand with or without galvanic vestibular stimulation (GVS). We found that left anodal and right cathodal GVS, significantly enhanced sensitivity to mild shocks on either hand, without affecting response bias. There was no such effect with either right anodal and left cathodal GVS or sham stimulation. Further, the enhancement of somatosensory sensitivity following GVS does not strongly depend on the duration of GVS, or the interval between GVS and tactile stimulation. Vestibular inputs reach the somatosensory cortex, increasing the sensitivity of perceptual circuitry.

Type: Article
Title: How the vestibular system interacts with somatosensory perception: A sham-controlled study with galvanic vestibular stimulation.
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.neulet.2013.06.046
Publisher version: http://dx.doi.org/10.1016/j.neulet.2013.06.046
Additional information: © 2013 Elsevier Ireland Ltd. All rights reserved. This work is licensed under a Creative Commons Attribution 3.0 Unported License.
Keywords: CVS, EPSPs, GVS, Galvanic vestibular stimulation, Multisensory integration, PIVC, SSDT, Tactile perception, Vestibular system, caloric vestibular stimulation, excitatory postsynaptic potentials, galvanic vestibular stimulation, parieto insular vestibular cortex, somatosensory signal detection task
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > Institute of Cognitive Neuroscience
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology
URI: https://discovery.ucl.ac.uk/id/eprint/1400129
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