PSY 405 Study Guide - Final Guide: Agnosia, Glucocorticoid, Intraparietal Sulcus

• School: University of Arizona
• Department: Psychology Main
• Course: PSY 405
• Professor: Jamie Edgin

Document Summary

Average daily sleep declines steadily as children age: To 14 hrs at 2 yrs old. To 12 hrs at 3-4 yrs old 10 hrs at night and a 2-hr 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. The day"s experiences are replayed during sleep. 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: stage 1: <10% of the night, stage 2: 50% of the night, sws: 15-20% of the night, rem sleep: 20-25% of the night, these proportions vary with age. Learning across stages: stage 2- motor learning (serial rt, sws- declarative memory, rem- emotional memory, procedural learning (mirror tracing) At least 50% have serious sleep disturbance. Variation in vocabulary and verbal iq relates to sleep in down syndrome.