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    Attentional selection and attentional gradients: an alternative method for studying transient visual-spatial attention

    Eimer, Martin (1997) Attentional selection and attentional gradients: an alternative method for studying transient visual-spatial attention. Psychophysiology 34 (3), pp. 365-376. ISSN 0048-5772.

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    Abstract

    In two experiments, I employed an alternative method for studying transient visual‐spatial attention. Instead of using precuse, attention was manipulated by presenting most stimuli sequentially at predictable locations. In Experiment 1, most stimuli appeared in a regular clockwise or counterclockwise order, but some were separated by one or both visual meridians from the expected location. In Experiment 2, most stimuli were presented succesively along the horizontal meridian, and some stimuli were separated by one, two, or three positions from the expected location. Faster response times and larger posterior P1 and N1 components as well as enhanced negativities at midline electrodes were found for expected‐location than for unexpected‐location stimuli. These effects were partially modulated by the distance of unexpected stimuli from the current focus of attention, suggesting the existence of attentional gradients. Moreover, the data suggest that the direction of previous attentional shifts and the visual meridians play an important role for spatial attention.

    Metadata

    Item Type: Article
    School: School of Science > Psychological Sciences
    Depositing User: Sarah Hall
    Date Deposited: 17 Dec 2019 11:55
    Last Modified: 17 Dec 2019 11:55
    URI: https://eprints.bbk.ac.uk/id/eprint/30336

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