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    Variability in Speed of Information Processing: A New Measure of Cognitive Impairment in Individuals with Multiple Sclerosis

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    Bodling_ku_0099D_11014_DATA_1.pdf (212.1Kb)
    Issue Date
    2010-06-14
    Author
    Bodling, Angela Michelle
    Publisher
    University of Kansas
    Format
    59 pages
    Type
    Dissertation
    Degree Level
    Ph.D.
    Discipline
    Psychology
    Rights
    This item is protected by copyright and unless otherwise specified the copyright of this thesis/dissertation is held by the author.
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    Abstract
    Cognitive slowing has been firmly established as one of the few primary cognitive deficits associated with multiple sclerosis (MS). Numerous studies have documented impairments in speed of information processing for MS patients relative to healthy controls, but the present study was the first to investigate individual variability in speed of information processing in persons with MS. Thirty-nine patients with relapsing-remitting or secondary progressive MS and 32 healthy control participants completed a series of RT tests, the Stroop Test and the Rey Auditory Verbal Learning Test. MS patients performed more poorly than control participants across measures of speeded processing, responding more slowly and with greater trial-to-trial variability relative to healthy controls. The most robust group differences were observed on tests posing the greatest burden on rapid processing, with effect sizes for measures of individual variability on the most demanding tasks rivaling those of traditional measures of processing speed.
    URI
    http://hdl.handle.net/1808/6938
    Collections
    • Dissertations [4472]
    • Psychology Dissertations and Theses [466]

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    785-864-8983
    KU Libraries
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    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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