PS102 Lecture Notes - Lecture 11: Zygote, Change No Change, Information Processing
Document Summary
Development is the sequence of age-related changes that occur as a person progresses from conception to death. Interacting forces (biological, sociocultural, psychological), examines these forces. Developmental norms median age which individuals display various behaviours and abilities. Critical and sensitive periods: critical period age where experiences must occur, sensitive period optimal age range. Inverted u-shape: emerges early; peaks; declines with age. U-shape function: emerges shortly; disappears; re-emerges. Longitudinal: test the same aged people (cohort) at different times, pros. Same people, reduces variability across samples: cons. Cross-sectional: test different aged people at the same time, pros. Data from many age groups: cons. Cohort effects different gens grew up in different time periods = different culture, experiences, environments (e. g. , wireless technology) Sequential: test same aged people (cohort) as they age, pros. Three phases: germinal stage (0 to 2 weeks) Called a zygote (formed by union of sperm and egg) Cell mass implants into uterine wall: embryonic stage (2 weeks to 2 months)
