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beta rhythm

noun

  1. a pattern of high-frequency brain waves beta waves observed in normal persons upon sensory stimulation, especially with light, or when they are engaging in purposeful mental activity.

beta rhythm

noun

  1. See brain wave
    physiol the normal electrical activity of the cerebral cortex, occurring at a frequency of 13 to 30 hertz and detectable with an electroencephalograph See also brain wave

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Word History and Origins

Origin of beta rhythm1

First recorded in 1935–40; earlier beta waves, translation of German Betawellen; alpha rhythm

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