01:830:101 Lecture Notes - Lecture 13: Rapid Eye Movement Sleep, Sleep Deprivation, Rapideye

• School: Rutgers University
• Department: Psychology
• Course: 01:830:101
• Professor: Lawrence Jacobs

Document Summary

Sleep saves energy: mammals and birds lower their body temperature, animals decrease muscle activity. Sleep helps restorative functions in the brain: sleep deprivation leads to irritability, impaired attention, and weakened immune system. Evolutionary theory: animals have evolved to only sleep as much as is doesn"t . With their needs (birds don"t sleep during migration) Predators are seldom attacked during their sleep, but prey species need to arouse quickly from sleep to avoid being attacked. Sleep research was jump-started in the late 1950"s when researchers in the united. States and france independently discovered rem activity during sleep. People tend to report vivid dreams when awakened during rem sleep. But complex dreams have also been reported during non-rem sleep, that occurs at the end of the night . Newborns" sleep alternates between wakefulness and . Within a few months, infants consolidate most of their sleep into one longer period at during the day.