PSY 1001 Lecture Notes - Lecture 1: Suprachiasmatic Nucleus, Sleep Debt, Sleep Deprivation

• School: University of Iowa
• Department: Psychology
• Course: PSY 1001
• Professor: Robert Thunhurst

Document Summary

Increase respiration rate & increase brain activity but voluntary (cid:373)us(cid:272)le (cid:373)o(cid:448)e(cid:373)e(cid:374)t lo(cid:272)k (cid:894)(cid:272)a(cid:374)"t (cid:373)o(cid:448)e- so (cid:455)ou do(cid:374)"t hurt (cid:455)ourself(cid:895) Circadian rhythm: any biological process that displays an internal, adaptable oscillation of about 24 hours: melatonin: sleep inducing hormone, cortisol: stress hormone & highest right before we wake up. Slow-wave sleep disorders: bedwetting, sleep walking- (cid:374)ot drea(cid:373)i(cid:374)g (cid:271)e(cid:272)ause (cid:373)us(cid:272)les are(cid:374)"t i(cid:374)hi(cid:271)ited, night terrors- to wake up frightened- not a nightmare. Adaptation (protects) vs restoration (recuperation: we sleep to protect us from harm, we sleep to conserve energy. Restoration theory: we sleep to reple(cid:374)ish (cid:271)od(cid:455) a(cid:374)d (cid:271)rai(cid:374) of (cid:862)so(cid:373)ethi(cid:374)g(cid:863) Physical vs mental functioning: sleep deprivation affects mental functioning more than physical functioning. Evidence that we need rem: vigilance- easier to awaken, memory consolidation, brain development. What determines what time we go to sleep and how long: biological factors- age, environmental factors- work schedule, cultural factors- (cid:272)ollege stude(cid:374)t (cid:272)o(cid:373)(cid:373)u(cid:374)it(cid:455)/ pai(cid:374) has (cid:862)siesta(cid:863) after lu(cid:374)(cid:272)h. Metabolic rate highly correlated with amount something sleeps.