general adaptation syndrome (GAS)
general adaptation syndrome stages
alarm reaction, resistance, exhaustion
alert, fully awake state
awake, rested, relaxed state
deep relaxation, light sleep
alpha waves replaced by theta waves
theta waves, interrupted by sleep spindles and K complexes
rapid, rhythmic brain wave activity
large negative wave followed by a smaller positive one
large, slow delta waves
physiological responses similar to awake
muscles in state of flaccid paralysis
called this because of combo of physiological activity and deep sleep
stage 3 and 4 sleep
decreases throughout night
increases throughout night
time of all 5 stages together
begin with REM sleep, gradually changes to NREM sleep
stage 4 sleep and REM sleep
decrease from childhood to adulthood
50% of total sleep time
6 month REM
30% of total sleep time
20% of total sleep time
sleep terrors and sleepwalking occur
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