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beta rhythm

noun

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.

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Origin of beta rhythm

1935–40; earlier beta waves, translation of German Betawellen;see alpha rhythm

Words nearby beta rhythm

beta-oxidation, beta particle, beta radiation, beta ray, beta receptor, beta rhythm, beta sheet, beta stock, beta structure, beta test, betatopic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for beta rhythm

beta rhythm

beta wave

noun

physiol the normal electrical activity of the cerebral cortex, occurring at a frequency of 13 to 30 hertz and detectable with an electroencephalographSee 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

Medical definitions for beta rhythm

beta rhythm

n.

The second most common waveform occurring in electroencephalograms of the adult brain, characteristically having a frequency from 13 to 30 hertz. It is associated with an alert waking state but can also occur as a sign of anxiety or apprehension.beta wave
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.