beta rhythm

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Related to beta waves: Delta waves

beta rhythm

[′bād·ə ‚rith·əm]
(physiology)
An electric current of low voltage from the brain, with a pulse frequency of 13-30 per second, encountered in a person who is aroused and anxious.
References in periodicals archive ?
In addition, absolute mid beta waves increased in the same regions (left frontal and right parietal) and these changes might be enhancing the alertness state.
Stroop Beta Waves: Initial beta waves recorded during Stroop testing ranged from 11.
Persons who abuse alcohol chronically have been found to have lower levels of alpha and theta waves and an excess of beta waves, perhaps contributing to use of alcohol to raise levels of those brain waves to a more pleasant state of relaxation (Peniston & Kulkowsky, 1989).
Beta waves (13-18 Hz) are needed to solve a problem or complete a task.
The current increased the activity of normal beta waves -- a kind of brain wave that is usually active during sustained muscle activities, such as holding a book.
The EEG studies showed an increase in beta waves and a decrease in spike wave discharges.
Gamma waves are present during sound sleep; theta waves indicate dozing or sleeping; beta waves are present during an awake, excited state and alpha waves signify an awake, relaxed state.