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    Impaired decision making among morbidly obese adults.

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    Authors
    Brogan, Amy
    Hevey, David
    O'Callaghan, Georgia
    Yoder, Ruth
    O'Shea, Donal
    Affiliation
    School of Psychology, Trinity College Dublin, Dublin, Ireland. broganam@tcd.ie
    Issue Date
    2011-02
    MeSH
    Adult
    Aged
    Body Mass Index
    Case-Control Studies
    Decision Making
    Eating Disorders
    Female
    Humans
    Impulsive Behavior
    Male
    Middle Aged
    Obesity, Morbid
    Psychiatric Status Rating Scales
    Psychological Tests
    Questionnaires
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    Citation
    Impaired decision making among morbidly obese adults. 2011, 70 (2):189-96 J Psychosom Res
    Journal
    Journal of psychosomatic research
    URI
    http://hdl.handle.net/10147/146562
    DOI
    10.1016/j.jpsychores.2010.07.012
    PubMed ID
    21262422
    Abstract
    The Iowa Gambling Task (IGT) measures affective decision making and has revealed decision making impairments across a wide range of eating disorders. This study aimed to investigate affective decision making in severely obese individuals.
    Forty-two (12 male, 30 female) morbidly obese participants (mean BMI = 41.45) and 50 comparison participants (17 male, 33 female) matched for age, gender and education, completed the IGT.
    Obese participants performed significantly worse on the IGT compared to the comparison group, with 69% of the obese group demonstrating clinically impaired decision making. There was no evidence of learning across the five trial blocks in obese participants, with significant differences between the groups emerging in blocks 3, 4, and 5. IGT impairment was unrelated to BMI or eating pathology.
    Obese participants were significantly impaired on the IGT. The pattern of performance suggested a potential inability to maximise an immediate reward or program a delayed reward. The findings support the view that common decision making impairments exist across disordered eating populations. Future research is required to specify the source and mechanisms of these decision making deficits. The logical progression of this research is the development of interventions which improve decision making capacity and measure subsequent impact on psychological and physical outcomes.
    Item Type
    Article
    Language
    en
    ISSN
    1879-1360
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.jpsychores.2010.07.012
    Scopus Count
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    St. Columcille's Hospital

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