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  • Title: Cognitive and behavioral anomalies among insomnia patients with mixed restless legs and periodic limb movement disorder.
    Author: Edinger JD.
    Journal: Behav Sleep Med; 2003; 1(1):37-53. PubMed ID: 15600136.
    Abstract:
    This study examined whether patients who have periodic limb movement disorder (PLMD), with or without comorbid restless legs syndrome (RLS), display the sleep-disruptive cognitive and behavioral anomalies found among primary insomnia sufferers. Archival data from a Sleep History Questionnaire, home-based polysomnography, and a sleep log were obtained for matched RLS/PLMD, primary insomnia, and noncomplaining volunteer samples. Statistical comparisons showed that the RLS/PLMD and primary insomnia samples differed significantly from the normal sleepers in regard to their propensities for certain sleep disruptive habits, perceived difficulties controlling pre-sleep cognitive activity, and their subjective sleep appraisals. These findings suggest RLS/PLMD patients display many of the cognitive and behavioral anomalies thought to perpetuate primary insomnia. Hence, behavioral interventions may be warranted for RLS/PLMD patients.
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