PSYC 3101 Lecture Notes - Lecture 2: Baby Monitor, Attachment Parenting, Muscle Tissue
16 Dec 2019
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Chapter 5 the first 2 years: biosocial development (physical) Age 2: most kids weigh 30lbs, 32-36in tall. By age 2 half of adult height, but 20% of adult weight. Well-baby visits: check their height and weight, where they are, want to follow the same trajectory, compare the norms. Growth has been viewed as slow, steady process. Growth not as continuous as you think, often occurs in spurts. 90-95% of the time, infants not growing at all, but when they do grow it"s significant. Same size 2-63 days, but then grow 1/5 of an inch to 1 inch in 24hrs. Slim down in 2nd year, continues through middle childhood. Muscle tissue increases slowly, doesn"t peak until adolescence (strength and coordination limited) Average newborn sleeps 2/3rds of every day, cry 4-15min of every hour. They cry b/c general distress call (lots of different needs) Difficult cries (cocaine addict, low bw) more aversive cry than a typical newborn.
