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    Somatosensory modulation of perceptual vestibular detection

    Cabolis, K. and Steinberg, A. and Ferrè, Elisa Raffaella (2018) Somatosensory modulation of perceptual vestibular detection. Experimental Brain Research 236 (3), pp. 859-865. ISSN 0014-4819.

    Cabolis_EXPERIMENTAL_BRAIN_RESEARCH_2018.pdf - Author's Accepted Manuscript

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    Vestibular-multisensory interactions are essential for self-motion, navigation and postural stability. Despite evidence suggesting shared brain areas between vestibular and somatosensory inputs, no study has yet investigated whether somatosensory information influences vestibular perception. Here, we used signal detection methods to identify whether somatosensory stimulation might interact with vestibular events in a vestibular detection task. Participants were instructed to detect near-threshold vestibular roll-rotation sensations delivered by galvanic vestibular stimulation in one-half of experimental trials. A vibrotactile signal occurred to the index fingers of both hands in half of the trials, independent of vestibular signals. We found that vibrotactile somatosensory stimulation decreased perceptual vestibular sensitivity. The results are compatible with a gain regulation mechanism between vestibular and somatosensory modalities.


    Item Type: Article
    Keyword(s) / Subject(s): Vestibular sensation, Somatosensory processing, Galvanic vestibular stimulation, Multisensory modulation
    School: Birkbeck Faculties and Schools > Faculty of Science > School of Psychological Sciences
    Depositing User: Elisa Raffaella Ferre
    Date Deposited: 27 Sep 2021 15:01
    Last Modified: 02 Aug 2023 18:12


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