PSYCH211 Lecture Notes - Lecture 4: Programmed Cell Death, Prefrontal Cortex, Language Disorder

• School: University of Waterloo
• Department: Psychology
• Course: PSYCH211
• Professor: Ori Friedman

Document Summary

A new born predominantly sleeps for most of the day: 16 hours each night. What is the di erence between active sleep and quite sleep. Active sleep consists of rem sleep and quite sleep is non-rem sleep. A dramatic decline in the amount of sleep. A dramatic decline in the proportion of rem sleep. The proportion of decline in rem sleep decreases more than non-rem sleep. Auto simulation theory: explains why newborns sleep so much in rem sleep. In the womb, the visual stimulation in the womb in very low and the rem sleep serves to stimulate the visual areas of the brain after a child is born. Scientists found visual patterns that would exercise and exhaust the visual areas of the brain and found that infants later reduced their rem sleep signi cantly indicating that the brain was stimulated enough to not need more stimulation.