alpha rhythm
- a pattern of slow brain waves (alpha waves) in normal persons at rest with closed eyes, thought by some to be associated with an alert but daydreaming mind.
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Origin of alpha rhythm
1935–40; earlier alpha waves, translation of German Alphawellen, term used by their discoverer, German physician Hans Berger (1873–1941)
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
alpha rhythm
alpha wave
- physiol the normal bursts of electrical activity from the cerebral cortex of a drowsy or inactive person, occurring at a frequency of 8 to 12 hertz and detectable with an electroencephalographSee also brain wave
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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alpha rhythm
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The American Heritage® Stedman's Medical Dictionary
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