PSYCH 100 Lecture Notes - Lecture 4: Twin, Twin Study, Evolutionary Psychology

• School: UMASS-Amherst
• Department: Psychology & Brain Sciences
• Course: PSYCH 100
• Professor: Rahhal Tamara

Document Summary

Nature (genes) on behavior: evolutionary psychology we are the same, behavior genetics we are different, gender - differences, how much nature vs how much nurture. Nurture (experience) on behavior: early environment, parents, peers. Explain human behavior/traits by examining the long term reproductive dis/ advantages of said traits and behaviors. Any two humans will have % genetic variation (99. 5% similarity) Fact: men and women differ in their willingness to engage in sexual activity. How does evolutionary psych. explain those findings: women have way fewer opportunities to bear offspring. Need to be picky in choosing a mate. Wealth, status and power, will protect the child, and promotes her genes: men can have a thousand kids if they wanted to. If one partner turns out bad, lots of other opportunities. Want to have as many kids as possible to promote his genes. Wants to find really fertile women (young, attractive) 4: there are variations in human behavior.