PSY 102 Lecture Notes - Lecture 6: Circadian Rhythm, Sleep Deprivation, Jet Lag

• School: Ryerson University
• Department: Psychology
• Course: PSY 102
• Professor: Tisha Ornstein

Document Summary

Areas of the brain involved in sleep: hypothalamus, reticular system. Sleep ranks among the 3 most important considerations in maintaining good health, accompanied by good nutrition and stress management. Circadian risk: shift (cid:449)orkers, (cid:862)o(cid:374)-(cid:272)all(cid:863) (cid:449)orkers (cid:894)i. e. , do(cid:272)tors(cid:895); tra(cid:448)el a(cid:374)d jet lag, affect on well-being/functioning, decreased performance persists for a day or two after sleep recovery. Fatigue effects on drivers : drowsy driving symptoms, slowed reaction time, poorer judgment, (cid:862)tu(cid:374)(cid:374)el (cid:448)isio(cid:374)(cid:863, missing signals. Inconsistent speed and lane position: not remembering driving the last few miles. What is consciousness: subjective awareness of internal and external events. Co(cid:374)s(cid:272)ious(cid:374)ess de(cid:374)otes (cid:271)ei(cid:374)g a(cid:449)ake a(cid:374)d respo(cid:374)si(cid:448)e to o(cid:374)e"s e(cid:374)(cid:448)iro(cid:374)(cid:373)e(cid:374)t. State of consciousness can be divided: conscious versus not being conscious. As related to energy conservation (in various animal species) Maintain levels appropriate for the level of activity: therefore efficient in energy use. Sleep deprivation is the overall lack of necessary amount of sleep.