See under beta rhythm.
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.
(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
- Beta-adrenergic blocking agent
beta-adrenergic blocking agent