What are the 5 stages of sleep quizlet?
Terms in this set (5)
- Stage 1: -Light sleep~ Theta sleep (4-7 CPS) -Hypnic jerk.
- Stage 2: -Light sleep, theta waves (4-7 CPS) -slightly deeper stage of sleep.
- Stage 3: -Deep sleep, Delta waves (less than 4 CPS)
- Stage 4: -Purely delta waves (close to 1 CPS) -the deepest stage of sleep.
- Stage 5: -Rapid Eye Movement.
What are the 4 stages of sleep quizlet?
Terms in this set (6)
- Stage 1. transition from wakefulness and sleep. Lasts 1-7 minutes.
- Stage 2. Beginning of sleep, high frequency bursts of brain activity called Sleep Spindles.
- Stage 3. Deep Sleep.
- Stage 4. Deep Sleep.
- Non-REM Sleep. where you spend 80% of your sleep time.
- REM Sleep. 205 of your sleep time.
What is stage1 sleep quizlet?
Stage 1. Transition from waking to sleeping; irregular waves with occasional alpha waves. Stage 2. Transition from lighter to deeper sleep; sleep spindles (waves with alternating periods of calm and flashes of intense activity) appear.
What are the 4 stages of sleep in psychology?
What Are the Sleep Stages?
| Sleep Stages | Type of Sleep | Other Names |
|---|---|---|
| Stage 1 | NREM | N1 |
| Stage 2 | NREM | N2 |
| Stage 3 | NREM | N3, Slow-Wave Sleep (SWS), Delta Sleep, Deep Sleep |
| Stage 4 | REM | REM Sleep |
How many stages of sleep are there?
four
There are four total stages of sleep, divided into two phases: Non-REM sleep happens first and includes three stages. The last two stage of non-REM sleep is when you sleep deeply. It’s hard to wake up from this stage of sleep.
What is happening during stages 3 and 4 of sleep quizlet?
During the very deep sleep of STAGES 3 and 4 is when sleep phenomena, such as sleepwalking, sleep talking and night terrors occur. A period of REM sleep of rapid eye movement sleep during which the eyeballs rapidly move beneath the closed eyelids, darting back and forth and up and down in jerky movements.
What are the 4 sleep stages?
Sleep has been traditionally divided into 4 categories: awake, light, deep, and REM sleep. Each one plays an essential role in maintaining your mental and physical health. Note: As you’re reading about sleep, you may also see the terms “NREM” or “Stages 1-4.” These are simply other terms for the phases of sleep.
What are the 4 stages of non-REM sleep?
NREM sleep is divided into stages 1, 2, 3, and 4, representing a continuum of relative depth. Each has unique characteristics including variations in brain wave patterns, eye movements, and muscle tone. Circadian rhythms, the daily rhythms in physiology and behavior, regulate the sleep-wake cycle.
What happens in stage 4 of sleep?
Stage 4 of non-REM sleep Stage 4 is an even deeper sleep where the brain waves further slow and sleepers are very difficult to wake. It’s believed that tissue repair occurs during the stage of sleep and that hormones are also released to help with growth.
What sleep stage is best?
Scientists agree that sleep is essential to health, and while stages 1 to 4 and REM sleep are all important, deep sleep is the most essential of all for feeling rested and staying healthy. The average healthy adult gets roughly 1 to 2 hours of deep sleep per 8 hours of nightly sleep.
What phase of sleep do you dream?
REM sleep
REM sleep happens about an hour to an hour and a half after falling asleep. REM sleep is when you tend to have vivid dreams.