delta rhythm

delta rhythm
a pattern of slow brain waves, having a frequency of less than 6 cycles per second as recorded by an electroencephalograph, associated with deep sleep.
[1935-40]

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Universalium. 2010.

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  • delta rhythm — del′ta rhythm n. phl a pattern of slow brain waves, less than 6 cycles per second, associated with the deepest phase of slow wave sleep • Etymology: 1935–40 …   From formal English to slang

  • delta rhythm — noun see delta wave …   New Collegiate Dictionary

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  • delta wave — n a high amplitude electrical rhythm of the brain with a frequency of less than 6 hertz that occurs esp. in deep sleep, in infancy, and in many diseased conditions of the brain called also delta, delta rhythm * * * 1. a small hump occurring on… …   Medical dictionary

  • delta wave — n. any of the slowest electrical brain waves, having frequencies less than four hertz and indicating, in adults, deep sleep or brain disease: also delta rhythm …   English World dictionary

  • delta wave — noun the normal brainwave in the encephalogram of a person in deep dreamless sleep; occurs with high voltage and low frequency (1 to 4 hertz) • Syn: ↑delta rhythm • Hypernyms: ↑brainwave, ↑brain wave, ↑cortical potential * * * noun also …   Useful english dictionary

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