Brain waves between 1 and 4 Hz in frequency; associated with deep, slow-wave sleep.
Last reviewed: By John M. Grohol, Psy.D. on 4 Dec 2008
Advertise with Us
Copyright © 1995-2014 Psych Central. All rights reserved.
Site last updated: 30 Sep 2014
Psych Central Professional
Psych Central Blog Network
Psych Central News
Psychological Tests & Quizzes
We comply with theHONcodestandard: