PSYC 3404 Chapter Notes - Chapter 6: Psychological Abuse, Relational Aggression, Corporal Punishment
10 Apr 2018
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Physical development: growth from age 3 to 6 (early childhood) Boys are slightly taller and heavier than girls (small difference) Most boys and girls gain weight (more muscle than fat) lose baby fat . In developing countries: average heights and weights are lower. If same socioeconomic status, heights and weights are influenced by genetics. By age 3: have full set of 20 baby teeth. Replacement process until age 14 (32 set of adult teeth) 40% children have at least 1 cavity by age 5. Children in most developing countries have more tooth decay in early and middle childhood than children in developed countries do. Growth of the brain outpaces rest of body (age 3 - 70%; age 6 - 90%) Growth of cerebral cortex = spurts; synaptic pruning. Corpus callosum increased dendritic connection more efficient functioning. Cerebellum increased connections better balance and motor movements. Reticular formation myelination completed by age 5 increased attention span.
