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Chapter 4

Psychology 1000 Chapter Notes - Chapter 4: Reciprocal Altruism, Biological Determinism, Parental Investment

Course Code
PSYCH 1000
Derek Quinlan

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Monday, October 17th
Evolutionary Psychology : how behavior and tendencies have evolved in
response to environmental demands
Personality traits in humans have survived because they help us
achieve our overriding goals
Physical survival
Natural Selection
Characteristics more likely to be preserved if they increase:
Likelihood of survival
Ability to reproduce
Some survive and reproduce more successfully than others in the
current environment
How NOT to Think About Evolution
Genetic determinism
Your genes have unavoidable effects
Ex: both your parents are alcoholics
Do you feel?
A. You will be an alcoholic genetic determinism says
you will be
B. No way you will become an alcoholic
Social Darwinism
High society is the “most fit”
Fittest can suppress the less fit
“Survival of the fittest”
Movie : Chimps/Bonobos
Feed in trees
Mothers and young are independent from the group
Sex is often and hurried
Males are sexually dominant
Feed on ground
Mothers and young travel together
Sex is pleasurable
Females band together to fight off unwanted sex
Survival & Reproduction Evolution and Behavior
Always keep in mind—survival and survival of the next generation
How do we accomplish this?
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