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    OMEGA-3 FATTY ACID SUPPLEMENTATION AND SLEEP

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    Prohaska_ku_0099M_10149_DATA_1.pdf (114.9Kb)
    Issue Date
    2008-10-24
    Author
    Prohaska, Jennifer A.
    Publisher
    University of Kansas
    Format
    53 pages
    Type
    Thesis
    Degree Level
    M.A.
    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
    Previous research has found omega-3 fatty acid supplementation advantageous in reducing depressive symptoms. One of the central diagnostic symptoms of depression is sleep disturbance. Accordingly, this study was designed to examine the effects of omega-3 fatty acid on self-reported insomnia. It was hypothesized that participants assigned to supplement their diet with omega-3 fatty acid would have improvements in sleep efficiency, sleep onset latency, sleep fragmentation and actual sleep time. Supplementary hypotheses examined were that omega-3 fatty acid might improve cognitive ability and sub-syndromal depressive symptoms. Participants were 27 undergraduate students reporting a variety of sleep difficulties as assessed by self report of insomnia symptoms. Participants were randomly assigned either to a treatment condition, with a daily supplement of 1500 mg omega-3 fatty acid and 30 IU of vitamin E, or a control group that received 30 IU daily of vitamin E. Sleep was monitored over a 28 day period, the last 21 days of which participants were instructed to take the assigned supplements. Participants were measured on objective (Actigraph) and subjective self-report measures of sleep for seven days prior to the intervention, and during the last seven days of the intervention. They also completed a self-report screen for depressive symptoms and several cognitive tasks immediately prior to and following the intervention. A 2x2 mixed factoral analysis of variance was performed on all outcome variables. The treatment group did not improve significantly more than the control group on any measures of sleep, or mood. One cognitive measure of processing speed did significantly improve for the treatment condition. These findings are discussed in light of study limitations and the existing literature, and recommendations made for additional research focused on the possibility of sleep improvements with omega-3 supplementation in a clinically depressed population.
    URI
    http://hdl.handle.net/1808/5334
    Collections
    • Psychology Dissertations and Theses [459]
    • Theses [3828]

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    KU Libraries
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    785-864-8983

    KU Libraries
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    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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