BIROn - Birkbeck Institutional Research Online

    Right hemisphere control of visuospatial attention in near space

    Longo, Matthew R. and Trippier, S. and Vagnoni, Eleonora and Lourenco, S.F. (2015) Right hemisphere control of visuospatial attention in near space. Neuropsychologia 70 , pp. 350-357. ISSN 0028-3932.

    [img]
    Preview
    Text
    10789.pdf - Accepted Version

    Download (964kB) | Preview

    Abstract

    Traditionally, the right cerebral hemisphere has been considered to be specialized for spatial attention and orienting. A large body of research has demonstrated dissociable representations of the near space immediately surrounding the body and the more distance far space. In this study, we investigated whether right hemisphere activations commonly reported for tasks involving spatial attention (such as the line bisection and landmark tasks) are specific to stimuli presented in near space. In separate blocks of trials, participants judged either whether a vertical transector was to the left or right of the centre of a line (landmark task) or whether the line was red or blue (colour task). Stimuli were seen from four distances (30, 60, 90, 120 cm). We used EEG to measure an ERP component (the ‘line-bisection effect) specific to the direction of spatial attention (i.e., landmark minus colour). Consistent with previous results, spatial attention produced a right-lateralized negativity over occipito-parietal channels. The magnitude of this negativity was inversely related to viewing distance, being largest in near space and reduced in far space. These results suggest that the right occipito-temporal cortex may be specialized not just for the orientation of spatial attention generally, but specifically for orienting attention in the near space immediately surrounding the body.

    Metadata

    Item Type: Article
    Additional Information: “NOTICE: this is the author’s version of a work that was accepted for publication in NEUROPSYCHOLOGIA. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Neuropsychologia - DOI:10.1016/j.neuropsychologia.2014.10.035
    School: Birkbeck Schools and Departments > School of Science > Psychological Sciences
    Research Centre: Brain and Cognitive Development, Centre for (CBCD)
    Depositing User: Matthew Longo
    Date Deposited: 07 Nov 2014 11:02
    Last Modified: 02 Dec 2016 11:52
    URI: http://eprints.bbk.ac.uk/id/eprint/10789

    Statistics

    Downloads
    Activity Overview
    35Downloads
    135Hits

    Additional statistics are available via IRStats2.

    Archive Staff Only (login required)

    Edit/View Item Edit/View Item