PSYC 2000 : Exam 2 Slide Review
Document Summary
Circadian rhythm: biological clock , daily behavioral/ physiological cycle, 24hr cycle, includes sleep and wakefulness, thinking & memory most accurate @ daily peak in circadian rhythm, @ 20 shift from morning larks night owls. Sleep stages: awake and alert awake but relaxed sleep, 90 minutes/ stage, stage 1-4, rem, w/ each 90 min cycle, stage 4 decreases and rem increases, awake & alert (aalafibw, low amp fast irregular beta waves. Impaired concentration: fatigue and subsequent death, emotional irritability, depressed immune system, greater vulnerability to obesity. Manifest content : dreams usually contain traces of previous day"s experiences- Story line of our dreams : negative emotional content: 8 out of 10 dreams have negative content, failure dreams: failure, being attacked, pursued, rejected, or struck with misfortune, sexual dreams: contrary to our thinking, sexual dreams are sparse. Neural networks of newborns are quickly developing; therefore, they need more sleep: activation-synthesis theory, suggests that the brain engages in a lot of random neural activity.
