PSYC 1030H Chapter Notes - Chapter 11: Irreversible Process, Intellectual Disability, Neurofibrillary Tangle
29 Jan 2018
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Document Summary
Human life provides an interesting illustration of the two themes that permeate the study of human development: transition and continuity. Psychologists study how people evolve through transitions over time. Development is the sequence of age-related changes that occur as a person progresses from conception to death. Cumulative process that includes both the biological and behavioural changes that take place as people grow older. Divide the life span into four broad periods: the prenatal period, between conception and birth, childhood, adolescence, adulthood. The embryonic stage is the second stage of prenatal development, lasting from two weeks until the end of the second month. Most of the vital organs and bodily systems begin to form in the developing organism, which is now called an embryo. Structures like the heart, spine, and brain emerge gradually as cell division becomes more specialized. Embryo is typically only about 2. 5 cm long at the end of this stage.
