alpha rhythm


noun
  1. 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.

Origin of alpha rhythm

1
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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British Dictionary definitions for alpha rhythm

alpha rhythm

noun
  1. 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 electroencephalograph: See also brain wave

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