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| 单词 | alpha rhythm |
| 释义 | alpha rhythm in British English or alpha wave noun physiology the normal bursts of electrical activity from the cerebral cortex of a drowsy or inactive person, occurring at a frequency of 8 to 12 hertz and detectable with an electroencephalograph See also brain wavealpha rhythm in American Englishnoun a pattern of slow brain waves (alpha waves) in normal persons at rest with closed eyes, thought by some to be associated withan alert but daydreaming mind Word origin [1935–40; earlier alpha waves, trans. of G Alphawellen, term used by their discoverer, German physician Hans Berger (1873–1941)]This word is first recorded in the period 1935–40. Other words that entered Englishat around the same time include: Rhodesian ridgeback, complementation, prime mover, unit trust, walk-throughExamples of 'alpha rhythm' in a sentence |
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