delta rhythm


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delta rhythm

or

delta wave

n
(Physiology) physiol the normal electrical activity of the cerebral cortex during deep sleep, occurring at a frequency of 1 to 4 hertz and detectable with an electroencephalograph. See also brain wave
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

del′ta rhythm`


n.
a pattern of slow brain waves, less than 6 cycles per second, associated with the deepest phase of slow-wave sleep.
[1935–40]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.delta rhythm - the normal brainwave in the encephalogram of a person in deep dreamless sleep; occurs with high voltage and low frequency (1 to 4 hertz)
brain wave, brainwave, cortical potential - (neurophysiology) rapid fluctuations of voltage between parts of the cerebral cortex that are detectable with an electroencephalograph
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References in periodicals archive ?
The results correlate with the explanation of loss of normal alpha rhythm and prominence of delta rhythm during encephalopathy.
The change in the delta rhythm index is in the range of 40-80%.
In a group of similar population with a group of individuals with similar characteristics of the delta rhythm, the hypothesis tested changes in biological parameters by t-test with a level of significance of 0,05.

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