PY 352 Chapter Notes - Chapter 1: Escalator, Fetus, Prenatal Development
22 May 2018
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1. Introduction
1. Developmental psychology is interested in how people grow and
change—physically, cognitively, and socially.
2. There are 3 major themes in human development research…
1. Nature and nurture - asks how human development is
influenced by genetics vs. our experiences.
2. Continuity and stages - asks if human development is a
gradual, continuous process (like riding up an escalator) or
if it goes through a sequence of separate stages (like
climbing up the rungs on a ladder).
3. Stability and change - asks if our early personality traits
persist through life or if we become different people as we
age.
2. Conception
1. The female is born with all her eggs that she will have for the
rest of her life. Men continuously produce sperm throughout
their lives.
2. Conception is where the sperm fertilizes the outer coating of the
egg.
3. The gender is determined by the 23rd chromosomal pair.
1. XX is female and XY is male. This is determined by the
father.
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