alpha (alpha) rhythm

(redirected from alpha a rhythm)

al·pha (α) rhythm

(al'fă ridh'ŭm)
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.
Synonym(s): alpha (α) wave.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012