• Login
    View Item 
    •   Home
    • Brock Theses
    • Masters Theses
    • M.A. Psychology
    • View Item
    •   Home
    • Brock Theses
    • Masters Theses
    • M.A. Psychology
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of BrockUCommunitiesPublication DateAuthorsTitlesSubjectsThis CollectionPublication DateAuthorsTitlesSubjectsProfilesView

    My Account

    LoginRegister

    Statistics

    Display statistics

    Neural mechanisms underlying the flexible and continuous allocation of visual short-term memory resources.

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    Brock_Lockhart_Holly_2017.pdf
    Size:
    1.122Mb
    Format:
    PDF
    Download
    Author
    Lockhart, Holly
    Keyword
    Visual Short-term Memory
    fMRI
    Continuous Resource
    Attention
    
    Metadata
    Show full item record
    URI
    http://hdl.handle.net/10464/13041
    Abstract
    It has long been debated whether objects stored in visual short-term memory (VSTM) are maintained as discrete items or as a continuous resource. While much recent behavioral evidence has supported a continuous resource model, neurological support has lagged behind. In the current study, participants underwent fMRI while they completed a delayed-estimation task with probabilistic cues directing flexible allocation of resources across four items. Behavioural evidence replicated the finding that participants could flexibly allocate memory resources between items, contrary to discrete models of VSTM. Neural activity demonstrated that participants were maintaining multiple items on trials in which one item had a high probability of being cued, consistent with continuous resource models. Whole brain analysis revealed frontal areas play a role in controlling the flexible allocation of memory resources in response to probabilistic cues. The results suggest a mechanism of frontal top-down attentional control over the flexible allocation of memory resources.
    Collections
    M.A. Psychology

    entitlement

     
    DSpace software (copyright © 2002 - 2022)  DuraSpace
    Quick Guide | Contact Us
    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.