The contemporary theory for the mechanism of NREM sleep
thus suggests a reciprocal interaction between two antagonistic neurons in the VLPO of the anterior hypothalamus and wake-promoting neurons in the tuberomammillary nuclei of the posterior hypothalamus, as well as locus coeruleus, dorsal raphe, basal forebrain and mesopontine tagmentum (6,20).
Changes in respiration in NREM sleep
in hypercapnic chronic obstructive pulmonary disease.
EGG readings show slow, rolling movements at the transition to NREM sleep
Feeling low affects hormone levels and the sleep cycles of REM and NREM sleep
are often unbalanced.
The metabolic system that responds to changes in carbon dioxide and oxygen seems to exert its major influence over NREM sleep
Duration of NREM sleep
as well as duration of total sleep was increased significantly after treatment with VW at the doses of 200 and 300 mg/kg.
OSA compromises REM and NREM sleep
due to the constant interruptions during the night.
A higher baseline BP and a more pronounced hemodynamic response to an obstructive apneic event were observed during REM sleep compared with NREM sleep
LTF of genioglossus was present in healthy non-flow limited humans (n=12) during NREM sleep
and that this was inversely correlated with age.
Since external stimuli such as noise or light are blocked at different levels of the Central Nervous System in REM sleep versus NREM sleep
, it is best to avoid entering the patient's room when the patient is in REM and you have noisy sneakers.
, and waking non-activity, correspond to greater activity in the right hemisphere, lower blood pressure, and the freeze stress response.
Prematurity Preterm infants sleep deeply during NREM sleep
and may "forget" to breathe due to immaturity of the cardiorespiratory control centers.
During NREM sleep
, the eyes typically do not move in a rapid fashion; this sleep state is further divided into four stages determined by polysomnography, which is described in the following paragraph.
Another approach to differentiating REM from NREM sleep
is a computer analysis of EOG rapid eye movements, although the occurrence of frequent rapid eye movements can be mistaken for wakefulness.
17,22] NREM sleep
occurs first and is divided into four stages which reflect the depth of sleep.