PSY 1101 Chapter Notes - Chapter 3: Barbiturate, Methamphetamine, Hypnosis

• School: University of Ottawa
• Department: Psychology
• Course: PSY 1101
• Professor: Kenneth Campbell

Document Summary

Rem sleep: about an hour after initially falling asleep, heart rate and breathing is more rapid, genitals become aroused, brainstem blocks motor cortex messages, can"t be easily awakened, 20 25% of sleep is rem, body is internally aroused but externally calm and asleep. Sleep may have evolved for 5 reasons: sleep protects predators sleep more than prey, sleep helps us recuperate helps repair brain tissue, sleep helps restore and rebuild fading memories from the day strengthens and stabilizes neural memory traces, leads to better memory of recently learned material, sleep feeds creative thinking people who sleep on ideas/thoughts are able to solve problems more insightfully than those who stay awake, sleep supports growth the pituitary gland releases growth hormones when we"re asleep. Natural sleep aids: exercise, avoiding caffeine, food, and drinks near bed time, relaxing before bed, sleeping on a regular schedule, avoiding naps.