Psychology 1000 Lecture Notes - Lecture 32: Information Processing, Twin Study, Heritability

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Dr.Mike

Document Summary

Allows us to tease apart nature (what we inherit from our parents, dna) and nurture (our environments our surroundings, peers, where we live) Classical twin study compare monozygotic + dizygotic each raised in same household. Monozygotic twins (identical) vs. dizygotic twins (fraternal: monozygotic twins egg splits into 2 after fertilization. Share 100% of genes, genetically identical: dizygotic twins develop from 2 separately fertilized eggs. Share 50% of genes, like regular siblings: both share same environment in womb, and also share same parents. Both types of twins eat the same food at the same time. So both can be said to share 100% environment: regular siblings don"t share 100%, similar environments, but can vary depending on parenting/age. More similar environments between each other than someone random, but parents change their parenting style for each kid and one of the siblings experiences different environments before the other sibling is born. Siblings might have different friends and have different teachers in school.