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Stages of Sleep

QuestionAnswer
NREM 1 Light sleep and easily awoken with hallucinations and hypnagogic sensations where person experiences senses or jerking along with feeling like they're falling. Alpha Waves.
NREM 2 Fully asleep with sleep spindles(random burst of short activity) and k-complexes(random tall bursts of activity). Can still be easily awoken, but is asleep. Theta Waves.
NREM 3 Deep Sleep and is when the pituitary gland releases a growth hormone. Hard to awaken, but still processes stimuli(doesn't fall off the bed and selective attention). Can sleep walk and sleep talk during this phase. Delta Waves.
REM Brain is active as if it was awake despite the body being paralyzed. Dreams occur. Beta Waves.
REM Rebound If deprived of REM sleep, the person will go through longer REM sleep the next time they fall asleep.
Beta Waves Looks like a serrated edge of a knife, 13-30 Hz and occurs while awake.
Alpha Waves Moderately consistent waves that are pretty tall. Occurs while sleepy or relaxed and is 8-13 Hz
Theta Waves Has sleep spindles with short bursts of activity(packed together) and k complexes with tall bursts of activity(spread further apart). Happens during stage 1 and 2 of light sleep with 4-8 Hz
Delta Waves Not a whole lot of activity in general. During deep sleep and has Hz of 1-4
Created by: Brandonc2598
 

 



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