Erikson's stages of psychosocial development

Erikson's stages of psychosocial development, as articulated in the second half of the 20th century by Erik Erikson in collaboration with his wife Joan Erikson, is a comprehensive psychoanalytic theory that identifies a series of eight stages that a healthy developing individual should pass through from infancy to late adulthood.

According to Erikson's theory the results from each stage, whether positive or negative, influence the results of succeeding stages. Erikson published a book called Childhood and Society in 1950 that highlighted his research on the eight stages of psychosocial development. Erikson was originally influenced by Sigmund Freud's psychosexual stages of development. He began by working with Freud's theories specifically, but as he began to dive deeper into biopsychosocial development and how other environmental factors affect human development, he soon progressed past Freud's theories and developed his own ideas. Erikson developed different substantial ways to create a theory about lifespan he theorized about the nature of personality development as it unfolds from birth through old age or death. He argued that the social experience was valuable throughout our life to each stage that can be recognizable by a conflict specifically as we encounter between the psychological needs and the surroundings of the social environment.

Erikson's stage theory characterizes an individual advancing through the eight life stages as a function of negotiating their biological and sociocultural forces. The two conflicting forces each have a psychosocial crisis which characterizes the eight stages. If an individual does indeed successfully reconcile these forces (favoring the first mentioned attribute in the crisis), they emerge from the stage with the corresponding virtue.