BIROn - Birkbeck Institutional Research Online

    The vestibular system modulates the contributions of head and torso to egocentric spatial judgements

    Ferrè, Elisa Raffaella and Alsmith, A.J.T. and Haggard, P. and Longo, Matthew (2021) The vestibular system modulates the contributions of head and torso to egocentric spatial judgements. Experimental Brain Research 239 , pp. 2295-2302. ISSN 0014-4819.

    [img] Text
    Ferre_Misalignment_EBR_MinorRevision_13042021_notrack.pdf - Author's Accepted Manuscript
    Restricted to Repository staff only

    Download (421kB) | Request a copy
    [img]
    Preview
    Text
    43932a.pdf - Published Version of Record
    Available under License Creative Commons Attribution.

    Download (792kB) | Preview

    Abstract

    Egocentric representations allow us to describe the external world as experienced from an individual’s bodily location. We recently developed a novel method of quantifying the weight given to different body parts in egocentric judgments (the Misalignment Paradigm). We found that both head and torso contribute to simple alter-egocentric spatial judgments. We hypothesised that artificial stimulation of the vestibular system would provide a head-related signal, which might affect the weighting given to the head in egocentric spatial judgments. Bipolar Galvanic Vestibular Stimulation (GVS) was applied during the Misalignment Paradigm. A sham stimulation condition was also included to control for non-specific effects. Our data show that the weight given to the head was increased during left anodal and right cathodal GVS, compared to the opposite GVS polarity and sham stimulation. That is, the polarity of GVS, which preferentially activates vestibular areas in the right cerebral hemisphere, influenced the relative weightings of head and torso in spatial judgments.

    Metadata

    Item Type: Article
    Additional Information: The final publication is available at Springer via the link above.
    School: School of Science > Psychological Sciences
    Depositing User: Matthew Longo
    Date Deposited: 12 May 2021 09:46
    Last Modified: 16 Oct 2021 04:15
    URI: https://eprints.bbk.ac.uk/id/eprint/43932

    Statistics

    Activity Overview
    6 month trend
    25Downloads
    6 month trend
    71Hits

    Additional statistics are available via IRStats2.

    Archive Staff Only (login required)

    Edit/View Item Edit/View Item