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Medical Term:

alpha rhythm



  1. a wave pattern in the encephalogram in the frequency band of 8–13 Hz;
  2. the posterior dominant 8–13 Hz rhythm in the awake, relaxed person with closed eyes, that attenuates with eye opening.

Synonym(s): alpha wave, Berger rhythm

© Copyright 2016 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.