beta waves.
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beta waves — be′ta waves n. pl. phl See under beta rhythm • Etymology: 1930–35 … From formal English to slang
beta waves — brain waves in the electroencephalogram, which have a frequency of 18 to 30 per second; they are typical during periods of intense activity of the nervous system and occur principally in the parietal and frontal regions … Medical dictionary
beta waves. — See under beta rhythm. [1930 35] … Useful english dictionary
Beta wave — Beta wave, or beta rhythm, is the term used to designate the frequency range of brain activity above 12 Hz (12 transitions or cycles per second). Beta states are the states associated with normal waking consciousness. Low amplitude beta waves… … Wikipedia
beta rhythm — n BETA WAVE * * * a rhythm in the electroencephalogram consisting of waves smaller than those of the alpha rhythm, having an average frequency of 25 per second; see beta waves under wave. Called also beta activity … Medical dictionary
beta rhythm — a pattern of high frequency brain waves (beta waves) observed in normal persons upon sensory stimulation, esp. with light, or when they are engaging in purposeful mental activity. [1935 40; earlier beta waves, trans. of G Betawellen; see ALPHA… … Universalium
beta rhythm — be′ta rhythm n. phl a pattern of high frequency brain waves (beta waves) observed in normal persons upon sensory stimulation, esp. with light, or when they are engaging in purposeful mental activity. • Etymology: 1935–40; trans. of G Betawellen;… … From formal English to slang
beta rhythm — noun Physiology the normal electrical activity of the brain when conscious and alert, consisting of oscillations (beta waves) with a frequency of 18–25 hertz … English new terms dictionary
Beta Israel — ביתא ישראל Shlomo Molla … Wikipedia
beta wave — n. any of the electrical waves from the parietal frontal regions of the brain, having frequencies from 13 to 30 hertz: a sign of mental activity and alertness: also beta rhythm * * * … Universalium
