ArticleJournal of sleep research2026
Sleep in Functional Motor Disorders: A Case-Control Polysomnographic Study.
Article in Journal of sleep research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed.
- Prepulse inhibition of the blink reflex in functional neurological disorder and fibromyalgia.Brain : a journal of neurology · 2026Article
- High Prevalence and Clinical Impact of Fibromyalgia in Functional Motor Disorder.Movement disorders clinical practice · 2026Article
- Sleep in Functional Motor Disorders: A Case-Control Polysomnographic Study.Journal of sleep research · 2026Article
Corrections and comments
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Authors and funding
11 authors.
Funding
Abstract
Sleep problems are frequent in functional motor disorders (FMDs). Surprisingly, objective correlates of impaired sleep and its relationship to other comorbidities have been understudied, and no polysomnographic study is available. We aimed to map the polysomnographic parameters in the context of self-reported sleep and mood symptoms and search for comorbid sleep disorders in FMD and healthy controls. Thirty-seven patients (mean age [SD], 48.2 [10.6] years) with clinically definite FMD and 37 controls (48.6 [11.2] years) underwent structured medical and sleep history assessment, neurological examination and polysomnography and completed questionnaires for sleep quality, sleepiness, depression and anxiety. In FMD, specific sleep disorders were identified in our cohort, with 32% having restless legs syndrome, 38% clinically significant obstructive sleep apnoea and 8% periodic limb movements in sleep. FMD patients reported worse sleep quality (p < 0.001), higher sleepiness (p < 0.001), depression (p < 0.001) and anxiety (p < 0.001), had longer REM sleep latency (p < 0.001), worse sleep efficiency (p = 0.012) and increased wake ratio (p = 0.013). Furthermore, longer sleep latency (p = 0.030) and decreased REM sleep ratio (p = 0.027) in FMD reached nominal significance before adjustment for multiple comparisons. In FMD, subjective sleep quality positively correlated with depression (ρ = 0.54; p < 0.002) and anxiety (ρ = 0.61; p < 0.001) and subjective sleepiness correlated with depression (ρ = 0.42; p = 0.010). Self-reported measures did not correlate with any polysomnographic parameters. Polysomnography detected sleep structure changes in FMD. Sleep abnormalities, including impairments in REM sleep, should be considered in the management of FMD. Future studies should further explore the role of REM sleep disturbances in the pathophysiology of FMD.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.