Developmental psychology encompasses the study of the behavior of organisms from conception to death. In this unit, students will learn to examine the processes that contribute to behavioral change throughout a person’s life. The major areas of emphasis in the course include prenatal development, motor development, socialization, cognitive development, adolescence, and adulthood. Developmental psychologists seek to understand how changes in our biology and social situations over a lifespan influence our behaviors and mental processes. Development can be studied from several different perspectives, including biological or cognitive perspectives. Developmental psychologists may focus on one or more developmental periods or the entire course of a lifespan, using cross-sectional and longitudinal research methods.