PSY 405 Chapter Notes - Chapter 9: Actigraphy, Neural Development, Explicit Memory
1 Nov 2016
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Newborns average 16 hours sleep per day. Toddlers average about 14 hours per day. Average daily sleep declines steadily as children age: form 15 hours at 6 months, to 14 hours at 2 years old, to 12 hours at 3-4 years old. 10 hours at night and 2 hour day nap. Proportion of rem sleep declines rapidly until age 4, then stabilizes at young adult level: about 20 to 25% of total time spent asleep. Brain enters distinct stages of activity: important for learning. Place cells in the hippocampus the day"s experience is replayed during sleep the study of song birds mentioned in hill. The proportion of sws: rem sleep changes over the course of the night. The early part of the night contains more sws, while the later part of the night contains more rem sleep. Rem- emotional memory, procedural learning (mirror tracing) Sleep stages have different eeg patterns corresponding to different important brain processes.
