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Sleep paralysis episode (polysomnography)

EEG tracings (C4, C3, and O1) show intermixed theta and alpha activities of REM sleep with occasional REMs on electrooculography (L and R.EOG). Chin and limb (tibial) EMG display complete atonia until the end of the episode (right), when the patient regained motion, and some chin and limb EMG activity reappeared. (Contributed by Prof. Pasquale Montagna.)

Associated Disorders

  • Agoraphobia
  • Alien contact experience
  • Anxiety disorders
  • Automatic behaviors
  • Bipolar affective disorder
  • Hypnagogic hallucinations
  • Hypnopompic hallucinations
  • Multiple sclerosis
  • Narcolepsy
  • Nocturnal leg cramps
  • Nonrestorative sleep
  • Panic disorder
  • Posttraumatic stress disorder
  • Schizophrenia
  • Shift-work sleep disorder
  • Sleep apnea
  • Time-zone change sleep disorder