4 Phases of human development from birth to maturity. Refers to the psychology of humans, the distinct periods of brain function that varies as a child grows.
“…children’s growth from birth to university age maintain that this can be divided into various and distinct periods.” The Absorbent Mind, p.17.
“…psychology now accepts that there are different types of mentality in the successive phases of growth. These phases are quite distinct one from another, and it is interesting to find that they correspond with the phases of physical growth.” The Absorbent Mind, p.17.