PSY 2114 Chapter Notes - Chapter 4: Weaning, Quadrupedalism, Neuroplasticity

• School: University of Ottawa
• Department: Psychology
• Course: PSY 2114
• Professor: Eleanor Riesen

Document Summary

Persist throughout early & middle childhood & magnified at adolescence. Chapter 4: physical development in infancy & toddlerhood. Changes in body size & muscle-fat make up - 1st year: height 32 inches (more than 50% since birth) & 2nd year 36 in (75% higher) 5 m birth weight doubled 15 pounds. 1st year tripped 22 pounds; 3rd year quadruped 30 pounds. 9 m baby fat peaks to help maintain constant body temperature & slim down @ 2nd year. Mus(cid:272)le tissue i(cid:374)(cid:272)reases (cid:448)er(cid:455) slo(cid:449)l(cid:455) duri(cid:374)g i(cid:374)fa(cid:374)(cid:272)(cid:455) & does(cid:374)"t rea(cid:272)h peak u(cid:374)til adoles(cid:272)e(cid:374)(cid:272)e. Infancy girls are slightly shorter & lighter than boys + boys have higher ratio of fat to muscle. Ethnic difference in body ex: typical asian for early malnutrition. Children also differ in rate of physical growth. Skeletal age: (cid:373)easure (cid:271)o(cid:374)e de(cid:448)elop(cid:373)e(cid:374)t / (cid:272)hild"s ph(cid:455)si(cid:272)al (cid:373)aturit(cid:455) (cid:271)(cid:455) (cid:454)-raying small bones to see extent of which soft, pliable cartilage hardened into bone.