PSYA02H3 Chapter Notes - Chapter 12: Teratology, Attention Deficit Hyperactivity Disorder, Longitudinal Study
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PSYA02H3 Full Course Notes
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Major developmental periods of life: prenatal development, infancy and childhood, adolescence, adulthood and old age. Growing older is matter of changing personally, intellectually, and socially. Cross-sectional study: a study of development in which individuals of different ages are compared at the same time. Usually more convenient and avoid prob of repeatedly testing same individs. Longitudinal study: a study of development in which observations of the same individuals are compared at diff times of their lives: prenatal development. Prenatal period: the nine months b/w conception and birth. Divided into 3 developmental stages: zygotic, embryonic, and fetal. Length of normal pregnancy is 266 days or 38 weeks. During this time, development depends on two factors. From egg and sperm that determine the genotype; child develops a single source of genetic instructions. Epigenetic modifications; cell s chemical enviro moderates the expression of the genetic code. All cells have the same genetic content, but they perform diff functions and become diff types of cells.
