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  • A Meta-Analysis of Working Memory Impairments in Autism Spectrum Disorders

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    Author(s)
    Wang, Ya
    Zhang, Yi-bing
    Liu, Lu-lu
    Cui, Ji-fang
    Wang, Jing
    Shum, David HK
    van Amelsvoort, Therese
    Chan, Raymond CK
    Griffith University Author(s)
    Shum, David
    Chan, Raymond
    Year published
    2017
    Metadata
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    Abstract
    Autism spectrum disorders (ASD) are characterized by executive dysfunction, and working memory (WM) comprises one core component of executive function. Many studies have investigated WM impairments in individuals with ASD, however, a conclusive agreement has not been reached. The present study provided a meta-analytic review of WM impairments in individuals with ASD and evaluated potential moderating variables of this problem. Twenty-eight studies were included in this study, and the participants comprised 819 individuals with ASD and 875 healthy controls. A significant WM impairment (Cohen’s d = −0.61) was identified in the ...
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    Autism spectrum disorders (ASD) are characterized by executive dysfunction, and working memory (WM) comprises one core component of executive function. Many studies have investigated WM impairments in individuals with ASD, however, a conclusive agreement has not been reached. The present study provided a meta-analytic review of WM impairments in individuals with ASD and evaluated potential moderating variables of this problem. Twenty-eight studies were included in this study, and the participants comprised 819 individuals with ASD and 875 healthy controls. A significant WM impairment (Cohen’s d = −0.61) was identified in the individuals with ASD, however, this impairment was not associated with age. Results of moderation analyses showed that (a) spatial WM was more severely impaired than verbal WM and (b) the component of cognitive processing (maintenance vs. maintenance plus manipulation) did not affect the severity of WM impairments. These findings suggest that WM is impaired in individuals with ASD and may have implications for interventions related to WM impairments in these individuals.
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    Journal Title
    Neuropsychology Review
    Volume
    27
    Issue
    1
    DOI
    https://doi.org/10.1007/s11065-016-9336-y
    Copyright Statement
    © 2017 Springer-Verlag. This is an electronic version of an article published in Neuropsychology Review, Volume 27, Issue 1, pp 46–61, 2017. Neuropsychology Review is available online at: http://link.springer.com/ with the open URL of your article.
    Subject
    Cognitive Sciences not elsewhere classified
    Neurosciences
    Psychology
    Cognitive Sciences
    Publication URI
    http://hdl.handle.net/10072/344406
    Collection
    • Journal articles

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