BIROn - Birkbeck Institutional Research Online

    Galvanic vestibular stimulation influences randomness of number generation

    Ferrè, Elisa Raffaella and Vagnoni, E. and Haggard, P. (2013) Galvanic vestibular stimulation influences randomness of number generation. Experimental Brain Research 224 (2), pp. 233-241. ISSN 0014-4819.

    [img] Text
    Ferre_EXPERIMENTAL_BRAIN_RESEARCH_2013.pdf - Published Version of Record
    Restricted to Repository staff only

    Download (262kB)

    Abstract

    Successful interaction with the external environment requires a balance between novel or exploratory and routine or exploitative behaviours. This distinction is often expressed in terms of location or orientation of the body relative to surrounding space: functions in which the vestibular system plays an important role. However, the distinction can also be applied to novel versus repetitive production of any behaviour or symbol. Here, we investigated whether vestibular inputs contribute to the balance between novel and routine behaviours, independently of their effects on spatial orienting, by assessing effects of galvanic vestibular stimulation (GVS) on a random number generation task. Right-anodal/left-cathodal GVS, which preferentially activates the left cerebral hemisphere decreased the randomness of the sequence, while left-anodal/right-cathodal GVS, which preferentially activates the right hemisphere increased it. GVS did not induce any spatial biases in locations chosen from the number line. Our results suggest that vestibular stimulation of each hemisphere has a specific effect on the balance between novel and routine actions. We found no evidence for effects of non-specific arousal due to GVS on random number generation, and no evidence for effects on number generation consistent with modulation of spatial attention due to GVS.

    Metadata

    Item Type: Article
    Keyword(s) / Subject(s): Galvanic vestibular stimulation, Randomness, Exploration and exploitation, Neglect
    School: Birkbeck Faculties and Schools > Faculty of Science > School of Psychological Sciences
    Depositing User: Elisa Raffaella Ferre
    Date Deposited: 06 Sep 2021 11:57
    Last Modified: 02 Aug 2023 18:12
    URI: https://eprints.bbk.ac.uk/id/eprint/45693

    Statistics

    Activity Overview
    6 month trend
    1Download
    6 month trend
    74Hits

    Additional statistics are available via IRStats2.

    Archive Staff Only (login required)

    Edit/View Item Edit/View Item