Developmental psychology is the scientific study of how and why human beings change over For example, Erik Erikson developed a model of eight stages of psychological development. stages of psychosocial development that they theorized healthy individuals pass through as they develop from infancy to adulthood.
Development of the human body is the process of growth to maturity. The process begins with fertilization, where an egg released from the ovary of a female is penetrated by a sperm . Human adulthood encompasses psychological adult development. Definitions of adulthood are often inconsistent and contradictory;.
Prenatal Development; Infancy and Toddlerhood; Early Childhood; Middle Childhood; Adolescence Their nutritional needs are different and their primary psychological concerns are also distinctive. Smiling teen girl. stimulating life) , normal aging (in which the changes are similar to most of those of the same age ).