Download - Sleep Stages Notes

Transcript

Name: ______________________________________________ Pd:____Date:________________________SLEEP STAGESStage 1 Light sleep; Fantastic images resembling hallucinatins!d" rela#es; $"pnggic sensatins: %alling& %lating'rregular and small brain (a)es* minutesStage + ,ela# mre deepl"Sleep spindles - bursts % rapid& rh"thmic brain (a)e acti)it".an be a(a/ened (ithut t much di%%icult".learl" asleep; Garbled sleep tal/ing is pssible+0 minutesStage 1 Transitinal stage!rain begins t emit delta (a)es 2large sl( (a)es assciated (ith sleep3Fe( minutesStage 4 .ntinual delta (a)es; Stages 1 and 4 termed sl(5(a)e sleepSleep5(al/ing& bed5(etting& night terrrs,E6 A%ter Stage 4 ges bac/ t stage 1& then +& then ,E6 2,apid E"e 6)ement3Dream here$eart rate rises& rapid and irregular breathing& e"es dart arund& genital arusal&brain (a)es rapid and sa(5tthed6tr crte# is acti)e& but brainstem blc/s it messages 6uscles E7T,E6EL8 rela#ed and little m)ement.annt be easil" a(a/enedTermed parad#ical sleep as internall" bd" is arused (hile e#ternall" appears calms10 minutes Sleep c"cle repeats itsel% abut e)er" 90 minutes As Stage 4 sleep gets prgressi)el" brie%er and then disappears& ,E6 sleep perid gets lnger:http:;;(((:sleepde#:rg;images;brain(a)e: