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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. 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
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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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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beta receptorbeta sheet