Click on any embryo and start exploring one of the 23 stages of development during the 8-week embryonic period.

A chart summarizing the stages of psychosocial growth researched and determined by psychologist Erik Erikson. The elements of this study span all of human life from conception through the twilight years over 65.

Erikson and Piaget both studied human behavior to determine that we develop in the same system. While Piaget focused on cognitive development, solely intellectual, Erikson was drawn to explore the systematic stages of human psychosocial...