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    Hyperarousal Is Associated with Socioemotional Processing in Individuals with Insomnia Symptoms and Good Sleepers

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    Author
    Howlett, Reuben D M
    Lustig, Kari A
    MacDonald, Kevin J
    Cote, Kimberly A
    Keyword
    Insomnia
    Hyperarousal
    Emotion processing
    
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    URI
    http://hdl.handle.net/10464/14820
    Abstract
    Despite complaints of difficulties in waking socioemotional functioning by individuals with insomnia, only a few studies have investigated emotion processing performance in this group. Additionally, the role of sleep in socioemotional processing has not been investigated extensively nor using quantitative measures of sleep. Individuals with insomnia symptoms (n = 14) and healthy good sleepers (n = 15) completed two nights of at-home polysomnography, followed by an afternoon of in-lab performance testing on tasks measuring the processing of emotional facial expressions. The insomnia group self-reported less total sleep time, but no other group differences in sleep or task performance were observed. Greater beta EEG power throughout the night was associated with higher intensity ratings of happy, fearful and sad faces for individuals with insomnia, yet blunted sensitivity and lower accuracy for good sleepers. Thus, the presence of hyperarousal differentially impacted socioemotional processing of faces in individuals with insomnia symptoms and good sleepers.
    ae974a485f413a2113503eed53cd6c53
    10.3390/brainsci10020112
    Scopus Count
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    2019 Open Access Fund Recipients

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