slow wave


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slow wave

[′slō ′wāv]
(electromagnetism)
A wave having a phase velocity less than the velocity of light, as in a ridge wave guide.
References in periodicals archive ?
In general, the patient showed uniform metabolism in bilateral frontal lobe (PET-CT), occasional sharp slow waves in the frontal zone (24 h EEG), and no typical SWDs or multiple spike waves during episodic hand tremor (documented with video-EEG monitoring).
Polysomnographic data demonstrates opioids decrease slow wave sleep and REM sleep.
At the beginning of the night, much of the first ninety-minute cycle is filled with slow wave sleep and the first REM episode is usually quite short, maybe five minutes.
The main advantage of the natural or ventilator-supported respiratory wave application [18]-[21] for the CA assessment is the possibility of continuous uninterrupted CA monitoring with up to 10 times shorter monitoring data delay time compared with the slow wave method.
When people are sleep-deprived, slow wave sleep N3 is the first form of sleep that is made-up upon recovery of sleep.
Our study shows for the first time that poor quality sleep, reflected by reduced slow wave sleep, puts individuals at significantly increased risk of developing high blood pressure, and that this effect appears to be independent of the influence of breathing pauses during sleep," said Prof Susan Redline.
Sleepwalking is a sleeping disorder, which sees people arise from the slow wave sleep stage in a state of low consciousness and perform activities that are usually performed during a state of full consciousness.
Evidence for the role of serotonin in the regulation of slow wave sleep in schizophrenia.
The 1-2 Hz, large amplitude, predominantly frontal lobe synchronous firing during slow wave sleep (SWS) is also involved (J.
For example there is evidence that selective slow wave sleep deprivation decreases mechanical pain thresholds and that REM sleep deprivation increases thermal pain sensitivity.
The deepest phase of sleep is characterised by slow wave activity.
Among the new data are statistically significant increases in stage 3 and stage 4 sleep, reductions in stage 1 sleep, reductions in the number of awakenings, and an increase in delta power during slow wave sleep.