What are the AASM criteria for EEG arousal on polysomnography (PSG)?

Updated: Apr 29, 2020
  • Author: Carmel Armon, MD, MSc, MHS; Chief Editor: Arlen D Meyers, MD, MBA  more...
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EEG arousal

See the list below:

  • Abrupt shift of EEG frequency including alpha, theta, and/or frequencies greater than 16 Hz (but not spindles)

  • Greater than 3 seconds of changed frequency on EEG

  • At least 10 seconds of stable sleep preceding the change

  • In REM sleep, increase in submental EMG for at least 1 second

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