PSY 102 Lecture Notes - Lecture 6: Opiate, Wish Fulfillment, Methamphetamine

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

Document Summary

There are different types of consciousness and awareness. Sleep changes our consciences/awareness, so do drugs: electrical activity of the brain will show us different states, subjective awareness of internal and external events. Common parlace: consciousness denotes being awake and responsive to one"s environment. Altered states induced by psychoactive drugs; meditation; hypnosis. Increase rate of anabolism, decreased rate of catabolism. Regulated by the suprachiasmatic nucleus (scn) or biological clock of the hypothalamus. Sleep is necessary for life, health, and survival. Falling asleep is triggered by an increase in melatonin. Disruptions of circadian rhythms (jet lag, late shifts) can cause numerous health problems. People (<1% with dec2 mutation) 6 hours or less. Building up a sleep debt can have numerous negative consequences. We cycle through five stages of sleep in roughly 90 minute cycles. Stages1-4 is non-rem sleep: no eye movements, fewer dreams. Stage 5 is rem sleep: vivid dreams and quick eye movements.