Examples of REM sleep in the following topics:
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- For this reason REM sleep is sometimes also called "active sleep."
- Stage 2 non-REM sleep is characterized by sleep spindles and K-Complexes.
- Stage 3 of non-REM sleep is considered the start to "deep sleep."
- REM sleep accounts for 20–25% of total sleep time in most human adults.
- Differentiate among REM sleep and the three phases of N-REM sleep
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- Dreaming and REM sleep are simultaneously controlled by different brain mechanisms.
- The hypothesis states that the function of sleep is to process, encode, and transfer data from short-term memory to long-term memory through a process called consolidation.
- NREM sleep processes the conscious-related memory (declarative memory), and REM sleep processes the unconscious related memory (procedural memory).
- The underlying assumption of continual-activation theory is that, during REM sleep, the unconscious part of the brain is busy processing procedural memory.
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- Sleep disorders cause sleep disturbances that affect the amount, quality, or timing of sleep or that induce abnormal events during sleep.
- Sleep-wake disorders cause a number of sleep disturbances that affect the amount, quality, or timing of sleep or that induce abnormal events during sleep.
- Most parasomnias are due to partial arousal during the transitions between wakefulness and non-rapid-eye-movement (N-REM) sleep or between wakefulness and rapid-eye-movement (REM) sleep.
- Sleep terrors typically occur in the first few hours of sleep, during stage 3 NREM sleep.
- The nightmares, which often portray the individual in a situation that jeopardizes their life or personal safety, usually occur during the second half of the sleeping process, called the REM stage.
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- Research on rats has found that a week of no sleep leads to loss of immune function, and two weeks of no sleep leads to death.
- When we do not sleep enough, we accumulate a sleep debt.
- Though there is no magic sleep number, there are general rules for how much sleep certain age groups need.
- A newborn baby spends almost 9 hours a day in REM sleep.
- By the age of five, only slightly over two hours is spent in REM.
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- Temporary paralysis occurs during REM sleep, and dysregulation of this system can lead to episodes of waking paralysis.
- Most paralyses caused by nervous-system damage (i.e. spinal-cord injuries) are constant in nature; however, some forms of periodic paralysis, including sleep paralysis, are caused by other factors.
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- ACh has also been shown to promote REM sleep.
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- Rapid Eye Movement - Often referred to as REM, this happens in the sleep stage when most vivid dreams occur.
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- The circadian pacemaker, located in the SCN, regulates the timing and consolidation of the sleep-wake cycle, while sleep-wake homeostasis governs the accumulation of sleep debt and sleep recovery.
- The sleepiness we experience during these circadian dips will be less intense if we have had sufficient sleep, and more intense when we are sleep deprived.
- Segmented sleep, also
known as interrupted or divided sleep, is a multiphasic sleep pattern in which two
or more periods of sleep are punctuated by periods of wakefulness.
- Roger Ekirch, a historian
who has researched segmented sleep extensively, argues that segmented sleep
was the dominant form of human sleep before the Industrial Revolution.
- Together, these results imply that segmented sleep is
indeed our natural sleep rhythm.
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- Céterae Gorgonés statim é somnó excitátae sunt, et ubi rem vídérunt, írá commótae sunt.
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- Illí rem tótam expónunt et puellam démónstrant.