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beta rhythm

American  

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 British  

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

Etymology

Origin of beta rhythm

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

One of these waves, called the beta rhythm, has a distinctively low frequency of between 13 and 30 cycles each second.

From New York Times

A number of studies suggest that the beta rhythm serves an important purpose: It keeps the different regions of the brain synchronized, like the sections of an orchestra.

From New York Times

Each time the brain reaches the crest of a beta rhythm, scientists have found, neurons get primed to send their signals.

From New York Times

By coordinating these signals, the beta rhythm may keep distant regions of the brain on the same timetable.

From New York Times

When people get Parkinson’s disease, the synchronization of the beta rhythm becomes stronger throughout the brain.

From New York Times