Beta EEG activity and insomnia

Michael L. Perlis, Helli Merica, Michael T. Smith, Donna E. Giles

Research output: Contribution to journalReview articlepeer-review

216 Scopus citations


To date there have been seven studies which find that beta EEG is elevated at around sleep onset and during polysomnographic sleep in patients with insomnia. These findings suggest that insomnia may be characterized by central nervous system (CNS) hyperarousal. In this article, the seven studies are critically reviewed, two theoretical perspectives on beta EEG are presented, and the concept of hyperarousal as a three component process is discussed.

Original languageEnglish (US)
Pages (from-to)365-376
Number of pages12
JournalSleep Medicine Reviews
Issue number5
StatePublished - 2001
Externally publishedYes


  • Beta
  • EEG
  • Insomnia
  • Polysomnography
  • Power spectral analysis
  • Sleep

ASJC Scopus subject areas

  • Pulmonary and Respiratory Medicine
  • Neurology
  • Clinical Neurology
  • Physiology (medical)


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