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    The balance of feelings: vestibular modulation of bodily sensations

    Ferrè, Elisa Raffaella and Bottini, G. and Iannetti, G.D. and Haggard, P. (2013) The balance of feelings: vestibular modulation of bodily sensations. Cortex 49 (3), pp. 748-758. ISSN 0010-9452.

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    Abstract

    The vestibular system processes information about head movement and orientation. No unimodal vestibular cortex has been identified in the mammalian brain. Rather, vestibular inputs are combined with many other sensory signals in the cortex. This arrangement suggests that vestibular input could influence processing in other sensory modalities. Here we show that vestibular stimulation differentially modulates two submodalities of the somatosensory system, increasing sensitivity to tactile input, and independently reducing sensitivity to nociceptive input. These modulations of touch and pain can clearly be distinguished from supramodal attentional effects of vestibular stimulation, because they are bilateral and operate in different directions. Outside the artificial conditions of laboratory stimulation, the vestibular system codes movements of the head, indicating a new relation between the body and the external world. We suggest the vestibular system participates in a form of sensory signal management, changing the balance between the various sensory systems as the relation between the body and the external environment changes. This sensory rebalancing may be a crucial element in the brain's capacity to reorient towards novel or salient features in the environment.

    Metadata

    Item Type: Article
    Keyword(s) / Subject(s): Caloric vestibular stimulation, Pain, Touch, Analgesia, Multisensory integration
    School: School of Science > Psychological Sciences
    Depositing User: Elisa Raffaella Ferre
    Date Deposited: 07 Sep 2021 14:06
    Last Modified: 09 Sep 2021 06:24
    URI: https://eprints.bbk.ac.uk/id/eprint/45695

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