Transcript Ch 12: Buss

Chapter 12
Evolutionary
Psychology
1
Darwin’s Theory of Evolution

Struggle for existence
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Variation of traits
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
Heritability of traits
Adaptation
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Darwin’s Theory of Evolution

Natural Selection
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Sexual Selection
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Fitness
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Inclusive Fitness
4
Two views of the evolution of
behaviors

Sociobiology
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
“perpetuation of the genes”
Evolutionary Psychology
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What is “selected”?

Brain
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Solutions to frequent problems
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Because brain is complex, we may be unaware of
large parts of solutions

Solutions are specialized

Some solutions evolved for hunter-gatherers
6
Theories of Human Nature


Social Science Model
Evolutionary Psychological Theory of Human
Nature
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Some Terms
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Sex Differences
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Strategies
8
Long-Term Mating Strategies
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Parental investment
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Women’s Preferences

Men’s Preferences
9
oxytocin
Definition:
Examples:
hormone released both in nursing
and in sexual intercourse, thought
to promote bonding in both cases


oxytocin-produced “cuddling” or
contact comfort of infants
emotional security between lovers
enhanced by oxytocin
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Long-Term Mating Strategies
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Attracting Mates
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Self-promotion
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Competitor derogation
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http://www.relationshiptalk.net/images/jealous.jpg
Long-Term Mating Strategies

Attracting Mates

Women

Men
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Long-Term Mating Strategies

Keeping a Mate

Love

Jealousy
13
Short-Term Mating Strategies
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Coolidge Effect
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Altruism

Kin selection
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Cost-benefit analysis
Reciprocal altruism
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(naturalistic fallacy)

Cheating
15
Dysfunctional Behavior
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Context failure
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Examples:
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Suicide
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Anxiety
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Addiction
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