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Instead, he suggests testing sleep onset latency during the day, ideally at 10:00 a.m., 12:30 p.m. and 3:00 p.m. A sleep onset latency of 0 to 5 minutes indicates severe sleep deprivation, 5 to 10 minutes is "troublesome", 10 to 15 minutes indicates a mild but "manageable" degree of sleep debt, and 15 to 20 minutes is indicative of "little or ...
A DSPD subject exhibited an average sleep onset latency twice that of the 3 control subjects and almost twice the amount of wakefulness after sleep onset (WASO) as control subjects, resulting in significantly poorer sleep efficiency. Also, the temporal distribution of slow wave sleep was significantly altered in the DSPD subject.
A clinical neurophysiologist, neurologist, psychiatrist or sleep specialist will review the results and inform the patient or the patient's primary care physician of the interpretation of the test result in the context of the clinical problem. The sleep latency (time between the start of the nap opportunity and sleep onset determined by EEG) is ...
Sleep onset is the transition from wakefulness into sleep. Sleep onset usually transits into non-rapid eye movement sleep (NREM sleep) but under certain circumstances (e.g. narcolepsy ) it is possible to transit from wakefulness directly into rapid eye movement sleep (REM sleep).
Polysomnography data can be directly related to sleep onset latency (SOL), REM-sleep onset latency, number of awakenings during the sleep period, total sleep duration, percentages and durations of every sleep stage, and number of arousals. It may also record other information crucial for diagnostics that are not directly linked with sleep, such ...
[49]: 686 In humans, the best evidence for REM's improvement of memory pertains to learning of procedures—new ways of moving the body (such as trampoline jumping), and new techniques of problem solving. REM deprivation seemed to impair declarative (i.e., factual) memory only in more complex cases, such as memories of longer stories.
REM sleep deprivation causes swollen mitochondria in neurons ... problems with attention, concentration, ... sleep onset latency, the amount of wake after sleep onset ...
The 'multiple sleep latency test' (MSLT) is an objective tool which indicates the degree of sleepiness by measuring the sleep latency (i.e. the speed of falling asleep). [38] [39] It also gives information regarding the presence of abnormal REM sleep onset episodes. [38]