Ch5LectureEvolutionaryPsychologyBLACK.WHITE

Ch5LectureEvolutionaryPsychologyBLACK.WHITE - Personality...

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Chapter 5 Chapter 5 Evolutionary Perspectives Evolutionary Perspectives on Personality on Personality Personality Psychology Personality Psychology
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Personality as a collection of evolved mechanisms? *Need to belong, altruism, universal emotions *Sex differences in mating behavior and aggression Evolution and Natural Selection Evolution and Natural Selection
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EEA: Environment of Evolutionary Adaptiveness Pleistocene? (1.8 million to 11, 000 years ago) Evolution and Natural Selection Evolution and Natural Selection
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Natural populations could grow exponentially (a la Natural populations could grow exponentially (a la Malthus). Malthus). Natural populations are relatively stable in size. Natural populations are relatively stable in size. Many individuals do not leave as many offspring as they Many individuals do not leave as many offspring as they might. might. Those best suited to prevailing environments leave the Those best suited to prevailing environments leave the most offspring. most offspring. Because of heredity, offspring are like their parents. Because of heredity, offspring are like their parents. Over many generations, natural selection results in Over many generations, natural selection results in individuals individuals that are progressively better adapted to their environments. that are progressively better adapted to their environments. Evolution and Natural Selection Evolution and Natural Selection
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Natural Selection Process by which adaptations are created and change takes place over time Hostile forces of nature Adaptations Survival of the fittest Evolution and Natural Selection Evolution and Natural Selection
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Hostile forces of nature Food shortages, parasites, diseases, weather, predators. Variants that helped organisms survive and reproduce would lead to increased chance of successful reproduction. Evolution and Natural Selection Evolution and Natural Selection
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Adaptations Inherited solutions to the survival and reproductive problems posed by forces of nature Survival of the fittest…there is a struggle to survive because of limited resources; to survive, you must adapt. Evolution and Natural Selection
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This note was uploaded on 06/04/2008 for the course PSYC 240 taught by Professor Heilbron during the Summer '08 term at UNC.

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Ch5LectureEvolutionaryPsychologyBLACK.WHITE - Personality...

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