mjl1717
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Can anyone explain stages 2,4, and REM sleep?
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| mani
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stage 2-- longets 45%, EEG shows sleep spindles and K complexes
stage 4-- deepest most relaxed, EEG shows delta waves
REM-- BP, pulse, resp increased, absent muscle movements, penile erection, ,dreams, EEG shows sawtooth waves~25%
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| mjl1717
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good
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| MLF
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Also Rem shows Beta waves just like when the person is awake and major neurotransmitter is Ach.
Can someone name some drugs that help decrease Stage 4 sleep?
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| musiclover
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Decreased stage 4 sleep:
Benzos
Imipramine (TCA)
Apparently also those who are depressed have shortened slow-wave (st 3-4) sleep
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| MLF
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Yes 
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