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Delve into the ongoing debate of whether human behavior is instinctive (heredity) or learned (environment). Learn how inherited factors and environmental conditions intertwine, shaping our actions and personalities. Explore the significance of genes and environment in behavior and discover key studies on twins examining Nature vs. Nurture in human development.
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Heredity and Environment Unit3
People argue about whether human behavior is instinctive (heredity) or learned (environment) • Heredity – transmission of characteristics from parents to the offspring • How much do you learn and how much is just inborn? • Inherited factors and environmental conditions always act together in complicated ways
Question of Nature vs. Nurture • Nature refers to the characteristics people inherit, their biological makeup • Nurture refers to the environmental factors, such as family, culture, education, and individual experiences • Sir Francis Galton became one of the first to stress the importance of nature; published book in 1869 Hereditary Genius which analyzed families • He concluded that that success ran in families and concluded heredity was the cause • John Watson stressed the importance of environment
Genes and Behavior • Genes are the basic units of heredity • Genes affect behavior through their role in building and modifying the physical structures of the body • Those structures interact with the environment and produce behavior
Twin Studies • Using page 175-176, take notes over the studies that have been done with twins • How does Nature vs. Nurture play a role in the studies • On page 176 do questions 1, 2, 3, 4