module 14 + module 15: behavior genetics / evolutionary psych

twins are studied to..

understand genetics

anecdotal data

give a survey to parents of different types of twins and see how they answer

why do we use anectodal data?

because we cannot conduct experiments like “The Truman Show” since that would be considered stalking

IDENTICAL twins

come from the same egg, then splitsone

one egg is called

monozygotic

identical twins are very alike in “extraversion”

meaning if one is introverted, the other will be too

are twins emotionally stable?

no. for example, their anger can go from 0-100 if someone messes up their room

fraternal ttwins

comes from two eggs

two egg twins are called

dizygotic

are fraternal twins similar to regular siblings?

yes, they are no different

seperated twins

separated at birth (ex: parent trap); virtually the same

bio relative vs adopted

shared environment (no impact on personality)

adopted twins will become like _________ either way

their birth parents

can specific genes dictate/control behavior

you are not “predisposed” to anything, it’s a behavior (ex:addicts) (smart people aren’t smart through genetics but through behavior)

evolutionary psychology

most focus on differences; starts with Charles darwin

most differences are

within groups, not between groups (EX: states in the US have more differences)

what evolution teaches us

1. no mate = no survival; eat good = survive

2. universal roles on gender/sex (male-work ; female-home/kids)