REM latency

REM latency

After a person falls asleep, the amount of time it takes for the first onset of REM sleep.
Mentioned in: Sleep Disorders
References in periodicals archive ?
Other studies relating to the current work show increased sleep latency, reduced total sleep time, increased REM density, and REM duration with reduction in slow-wave sleep (SWS) in few patients with clinical hyperthyroidism: [14] reduced sleep efficiency, low delta sleep, short REM latency, and high REM density in one case of thyrotoxicosis; [15] higher percentage of SWS during hyperthyroid state as compared to sleep structure, once the thyroid hormone levels had returned to normal; [16] very low SWS in patients with hypothyroidism; [17] and 6 clinical hypothyroid patients with increase in sleep Stage II and reduction of SWS.
4 REM latency (min) 4 Stage 1 sleep rate (%) (a) 5.
After adjusted for the difference in age by analysis of covariance, a shorter REM latency was found in MSA-C with RBD than MSA-C without RBD (111.
9 min) High REM latency from sleep onset (median, 126 1.
Results: The sleep analysis revealed that alkaloid extract from MS did not change any REM parameters which included average duration of each REM episode, total REM time, number of REM episode and REM latency whereas fluoxetine significantly suppressed all REM parameters and delayed REM latency.
Nocturnal polysomnography (PSG) showed reduced average sleep latency at 6 to 8 minutes, increased number of awakenings, disturbed sleep-wake cycle, shortened REM latency (the patient entered REM sleep immediately), and increased proportion of REM.
REM latency is another common calculation for reporting.
For example, the decrease of REM latency is an indisputable marker of unipolar depression.
19) Postpartum women have more awakenings, lower sleep efficiency and total sleep times, and increased REM latency.
Rao explained, "Sleep is probably more helpful in determining who is at risk for developing depression than in being a diagnostic marker for depression since REM latency of those adolescents was shorter before they even developed the illness.
Use of plugs and masks resulted in more rapid eye movement (REM) sleep, shorter REM latency and fewer awakenings.