conscientious

Conscientious

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Unformatted text preview: Consciousness Altered States of Consciousness S ta g e s o f s le e p S le e p d is o rd e rs D re a m s D a y d re a m s H y p n o s is M e d ita tio n A lc o h o l P s y c h o - a c tiv e d r u g s N e a r d e a th e x p e r ie n c e Why do we sleep?? R h y th m o f s le e p Our b o d ie s a r e in s y n c w /2 4 - h r c y c le o f d a y & n ig h t th r o u g h a b io lo g ic a l c lo c k r h y th m C ir c a d ia n Sleep Cycle E v e r y 9 0 m in u te s Stage 4 very brief—REM gets longer Sleep Stages S ta g e 0 = e y e s c lo s e d , a w a k e b u t a le r t Experience fantastic images like hallucinations, sensation of falling body jerks suddenly EEG = relatively slow alpha waves Stage 1 = breathing slows, light sleep Stage 2 = relax more deeply, easily awoken (~20min) brain waves slow further & show irregular waves Lasts ~ 20 minutes Stage 3 = transition to deeper sleep A transitional phase to the deep sleep of stage 4 Stage 4 = deep sleep (~30min) Deep sleep Large delta waves (~30 min) Hard to awaken sleep talk, sleep walk, wet the bed Then go back through stages 2 &3 REM sleep V e ry ra p id b ra in w a v e s (a s if a w a k e ) H e a r t r a te r is e s ; b r e a th in g in c r e a s e s S e x u a lly a ro u s e d E y e s d a r t b a c k & fo r th r a p id ly b e h in d lid s B e g in to d r e a m REM sleep (cont’d) **Paradox** * * In te r n a lly a r o u s e d - - - E x te r n a lly c a lm * * Sleep Deprivation F e e l...
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This note was uploaded on 02/06/2011 for the course PSYCH 120 taught by Professor Lebrenton during the Spring '10 term at Purdue.

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