NREM
Noun A recurring sleep state characterized by the absence of rapid eye movements and dreaming. This stage accounts for the majority of normal sleep time, approximately 75%.
The term "NREM" is used in scientific and medical contexts, particularly in sleep research and neurology, to describe a specific phase of the sleep cycle. It is often contrasted with REM (Rapid Eye Movement) sleep.
- Noun:
- The study focused on brain wave patterns during NREM sleep.
- Most of the night's deep, restorative sleep occurs in the NREM stages.
- "NREM sleep": The full term for the sleep state, often used to specify the context.
- Disruptions in NREM sleep can affect memory consolidation.
- "NREM-2" or "NREM Stage 3": Refers to specific substages within the NREM phase, which has multiple levels of depth.
- Sleep spindles are a hallmark of NREM-2.
- Non-REM sleep: A synonymous full term for NREM sleep.
- The patient's non-REM sleep architecture was normal.
- Slow-wave sleep (SWS): A term often used interchangeably with the deepest stage of NREM sleep (Stage 3).
- Slow-wave sleep is a crucial part of the NREM phase.
- Non-rapid eye movement sleep: The formal, descriptive synonym.
- Quiet sleep: A less technical term sometimes used, particularly in contrast to "active" REM sleep.
"NREM" is an acronym for "Non-Rapid Eye Movement." It is a categorical term for a group of sleep stages (Stages 1, 2, and 3) defined by specific physiological characteristics, most notably the lack of rapid eye movements and the general absence of vivid dreaming narratives associated with REM sleep. Its primary meaning is fixed within the scientific taxonomy of sleep.
- a recurring sleep state during which rapid eye movements do not occur and dreaming does not occur; accounts for about 75% of normal sleep time