PSYCH 241 Lecture Notes - Lecture 25: Corn Syrup, Convenience Food, Synaptic Pruning
Document Summary
Middle childhood: elementary school age: 6-12 years of age, rapid development; cognitive, physical, and mental. Body growth: slow, regular pattern, girls shorter and lighter until about age 9, bones lengthen, all permanent teeth arrive. Brain development: weight of the brain increases by 10, synaptic connections & myelination combined with synaptic pruning, result in continued lateralization of cerebral hemispheres, children acquire complex abilities. Physical development: trends in physical growth: from one generation to the next, trend in industrialized countries toward larger & heavier children, mostly due to improved health and nutrition, gains in height have stabilized, but weight continues to increase. Leaded to obesity in children and adults in the united states. How americans became the heaviest people in the. World: obesity rates began to soar in the 1980s, contributing factors, availability of cheap fat & sugar (corn syrup, palm oil, portion supersizing.
