Unit 1: Biological Bases of Behavior (Brain Edition)

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Natural Selection

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The process by which traits that enhance survival and reproduction become more common in a population over time.

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Nature

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The influence of genetics and biology on behavior and traits.

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Nurture

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The influence of environment and experience on behavior and traits.

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Twin Studies

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Research that compares the behavior of identical and fraternal twins to determine the role of genetics.

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Adoption Studies

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Research examining similarities between adopted children and their biological and adoptive parents.

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Family Studies

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Research examining the presence of traits or disorders within a family to assess heritability.

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Heredity

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The passing of traits from parents to offspring through genes.

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Genetic Predisposition

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An increased likelihood of developing a particular trait or disorder based on genetics.

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Eugenics

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A discredited movement aiming to improve the genetic quality of the human population.

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Cerebral Cortex

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The brain’s outer layer, responsible for higher-level thinking, decision making, and sensory processing.