AP Psych Unit 1.1 Interaction of Hereditary and Enviorment

Nature

Inherited traits and biological characteristics

Universal grammar

the theory of the innate biological component of the language faculty, usually credited to Noam Chomsky

Nurture

Our environment and social conditioning

Johnathan B Watson

was an American psychologist who popularized the scientific theory of behaviorism

What is behaviorism

a branch of psychology that focuses on how people learn through their interactions with the environment.

Epigenetics

how your behaviors and environment can cause changes that affect the way your genes work. Unlike genetic changes (mutations), epigenetic changes are reversible and do not change the sequence of DNA bases, but they can change how your body reads a DNA sequence.Jan 31, 2025

What do studies about rats show about epigenetics?

an epigenetic link between maternal behavior and stress. The rats that were reared by high-licking mothers grew up to be less stressed as adults than those raised by low-licking mothers. They saw this was true for female pups as well as male pups; it wasn't just passed down the maternal line.

What are the different types of twins?

Fraternal and identical

What are some differences between identical twins and fraternal twins?

Identical twins - 1)Same DNA 2)Same sex 3)On egg (monozygotic)

Fraternal twins- 1)Different DNA 2)genetically similar like regular sinlings 3)could be opposite sex 4)Two eggs (dizygotic)

What is the Minnesota Twin Study and why is it important?

-conducted over a period of 35 years

-Discovered that twins reared apart were very similar

-Jim Twins: Twins reared apart but had many similarities- vacationed in the same spots, similar hobbies, both had a dog named toy, both married to women named betty

Heritability

The proportion of variation in a population trait that can be attributed to inherited genetic factors.