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Multisensory effects on somatosensation: a trimodal visuo-vestibular-tactile interaction

Kaliuzhna, M; Ferre, ER; Herbelin, B; Blanke, O; Haggard, P; (2016) Multisensory effects on somatosensation: a trimodal visuo-vestibular-tactile interaction. Scientific Reports , 6 , Article ARTN 263. 10.1038/srep26301. Green open access

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Abstract

Vestibular information about self-motion is combined with other sensory signals. Previous research described both visuo-vestibular and vestibular-tactile bilateral interactions, but the simultaneous interaction between all three sensory modalities has not been explored. Here we exploit a previously reported visuo-vestibular integration to investigate multisensory effects on tactile sensitivity in humans. Tactile sensitivity was measured during passive whole body rotations alone or in conjunction with optic flow, creating either purely vestibular or visuo-vestibular sensations of self-motion. Our results demonstrate that tactile sensitivity is modulated by perceived self-motion, as provided by a combined visuo-vestibular percept, and not by the visual and vestibular cues independently. We propose a hierarchical multisensory interaction that underpins somatosensory modulation: visual and vestibular cues are first combined to produce a multisensory self-motion percept. Somatosensory processing is then enhanced according to the degree of perceived self-motion.

Type: Article
Title: Multisensory effects on somatosensation: a trimodal visuo-vestibular-tactile interaction
Open access status: An open access version is available from UCL Discovery
DOI: 10.1038/srep26301
Publisher version: http://dx.doi.org/10.1038/srep26301
Language: English
Additional information: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
Keywords: Science & Technology, Multidisciplinary Sciences, Science & Technology - Other Topics, SELF-MOTION PERCEPTION, VENTRAL INTRAPARIETAL AREA, MACAQUE MONKEY, RHESUS MONKEY, STIMULATION, RESPONSES, CORTEX, INTEGRATION, MODULATION, SIGNALS
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
URI: https://discovery.ucl.ac.uk/id/eprint/1496270
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