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alpha rhythm
noun
- 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.
alpha rhythm
noun
- See brain wavephysiol 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 electroencephalograph See also brain wave
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Word History and Origins
Origin of alpha rhythm1
First recorded in 1935–40; earlier alpha waves, translation of German Alphawellen, term used by their discoverer, German physician Hans Berger (1873–1941)
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Example Sentences
The alpha rhythm is a brain wave with a frequency around 10 hertz and is typically associated with attentional processes.
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