Prenatal period: tremendous growth from a single cell to an organism complete with brain and behavioral capabilities in 9 months
Infancy: psychological activities like language, symbolic thought, sensorimotor coordination, and social learning just beginning
Toddler: transitional period between infancy and early childhood (1 1/2 to 3 years)
Early childhood/preschool: learning self-sufficiency, developing school readiness skills, spending time playing with peers
Middle and late childhood: mastering fundamental skills of reading, writing, arithmetic, and being formally exposed to the larger world and its culture
Adolescence: rapid physical changes, pursuit of independence and identity, more logical and abstract thought, more time spent outside the family
Emerging adulthood: transitional period from adolescence to adulthood (18-25 years)
Early adulthood: establishing personal and economic independence, advancing in a career, selecting a mate, starting a family
Middle adulthood: expanding personal and social involvement and responsibility, assisting the next generation, maintaining satisfaction in a career
Late adulthood: life review, retirement, adjustment to new social roles and diminishing strength and health