PSYB32H3 Lecture Notes - Lecture 5: Secondary Sex Characteristic, Sexual Maturity, Lymphatic System
Document Summary
Motor development and physical growth go hand-in-hand. Child s body changes continuously and drastically in the first 2 decades of life, essentially until adulthood. As an infant, we have a big head and a small body, with the head being of the total body length. As an adult, our head is 1/7 of our total body length. There is a complex series of changes in terms of size, etc. from infancy to adulthood. In puberty there are dramatic changes in physical growth that have psychological significance. In rats 1-2% of life: apes extended approximately 7 years. Infants gain weight rapidly and height increases almost as fast. Time between birth and puberty adds times for the acquisition of cultural things. In adolescence, there is a huge change in weight and height again. Distal growth curves: plots the growth of particular body dimension each year, can determine interesting facts about physical growth, can be used for predictions.
