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Narcolepsy is a chronic sleep disorder characterized by pervasive, uncontrolled sleepiness and other sleep disturbances. One of its hallmark symptoms is an abrupt transition to REM sleep upon falling asleep, which causes symptoms typically associated with this phase to occur unexpectedly during wakefulness. These include the following symptoms, which typically last from a minute or two to half an hour.
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REM Sleep Behavior Disorder (RBD) is a sleep disorder characterized by the absence of muscle paralysis that normally occurs during the REM phase of sleep. This absence allows individuals to physically act out their dreams, which are often vivid and disturbing. Common behaviors exhibited during episodes include kicking, punching, and yelling. These actions can be dangerous, potentially leading to injuries for the person with RBD or their bed partner.
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Recurrent Isolated Sleep Paralysis.

Ambra Stefani1, Qi Tang1

  • 1Department of Neurology, Sleep Disorders Clinic, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria.

Sleep Medicine Clinics
|February 17, 2024
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Summary
This summary is machine-generated.

Recurrent isolated sleep paralysis, affecting 7.6% of people, is a benign condition where muscle atonia persists into wakefulness. Management focuses on sleep hygiene and cognitive behavioral therapy for anxiety, not medication.

Keywords:
Dissociate stateHallucinationsREM parasomniaREM sleepSleep paralysis

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Area of Science:

  • Neurology
  • Sleep Medicine
  • Psychiatry

Background:

  • Recurrent isolated sleep paralysis (RISP) affects 7.6% of the general population.
  • Episodes are typically benign and self-resolving.
  • RISP is characterized by a dissociative state where rapid eye movement (REM) sleep muscle atonia persists into wakefulness.

Purpose of the Study:

  • To describe the phenomenon of recurrent isolated sleep paralysis.
  • To outline the neurophysiological mechanisms involved.
  • To identify predisposing factors and recommend management strategies.

Main Methods:

  • Literature review of sleep paralysis.
  • Analysis of neurophysiological correlates of REM sleep atonia and arousal.
  • Identification of risk factors and clinical presentation.

Main Results:

  • Sleep paralysis involves the intrusion of alpha electroencephalogram into REM sleep, leading to arousal and persistent REM atonia.
  • Predisposing factors include irregular sleep-wake schedules, sleep deprivation, and jet lag.
  • No specific drug treatment is indicated for sleep paralysis.

Conclusions:

  • Sleep paralysis is a REM sleep disorder with a significant lifetime prevalence.
  • Management should prioritize patient education on sleep hygiene.
  • Cognitive behavioral therapy can be beneficial for patients experiencing anxiety or hallucinations associated with sleep paralysis.