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REM sleep behavior disorder (polysomnogram)

Note phasic EMG activity of submental and extremity muscles indicating loss of expected REM-related muscle atonia. (Contributed by Dr. Mark Mahowald.)

Associated Disorders

  • Agrypnia excitata
  • Idiopathic Lewy body disease (dementia with Lewy body disease)
  • Multiple sclerosis
  • Multiple system atrophy
  • Narcolepsy
  • Nightmare disorder
  • Parasomnia overlap disorder
  • Parkinson disease
  • Shy-Drager syndrome
  • Sleepwalking
  • Spinocerebellar ataxia type 3 (Machado-Joseph disease)
  • Synucleinopathies
  • Voltage-gated potassium channel antibody-associated limbic encephalitis