PSYC 395 Lecture Notes - Lecture 3: Sleep Spindle, Delta Wave, Muscle Tone
Document Summary
On average, infants sleep about 16 hours a day. 70 year olds sleep only about 6 hours. Infants spend about 50% of their sleep in rem (rapid eye movement. Young adults spend only 25% of their sleep time in rem. Your eeg now includes sleep spindles, which are bursts of rapid brain wave activity. This is the deepest stage od sleep. It"s difficult to be roused from nrem-3, and if you are roused, you are very groggy. In rem sleep, your eyes move rapidly beneath your closed eyelids. Your eeg resembles that of someone who is awake. But, your muscle tone drops to almost nothing. You do most of your dreaming during rem sleep. Rem sleep is the most important stage for learning and memory. (figure 3. 18,pg. 114) (figure 3. 13,pg. 103) (figure 3. 19,pg. 115) Narcolepsy: can fall asleep at any point in time (genetic disorder) Sleep walking: occurs in nrem-3 not rem because your body is paralyzed in.
