PSYC 1000 Chapter Notes - Chapter 11: Mary Ainsworth, Harry Harlow, John Bowlby
28 Feb 2014
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Major issues and methods: nature and nurture, critical period and sensitive period. Critical period: an age range in which certain experiences must occur for development to proceed normally or along a certain path. Sensitive period: an optimal age range for certain experiences, but normal developments are still possible at other times: continuity vs. discontinuity. Is development continuous and gradual, or progressing through qualitatively distinct stages: stability vs. change. Cross-sectional design people of varying ages studied simultaneously. Same people studied over a period of time. Pro: widely used b/c data from many age groups can be collected relatively quickly. Cons: different age groups (cohorts) grew up in different historical periods. Everyone is exposed to the same historical time frame. Embryo (2-8 week), placenta and umbilical cord develop at the start of this stage. Fetus (9 week), lasts until birth, muscles become stronger and other bodily systems continue to develop.
