Psychology 2030A/B Lecture Notes - Lecture 2: Interval Research Corporation, Statistical Significance, Intellectual Disability

• School: Western University
• Department: Psychology
• Course: Psychology 2030A/B
• Professor: David Vollick

Document Summary

Studies the interaction of genes and the environment. Family studies family history, cannot separate genetic vs environment. Adoption studies : where individuals are adopted out who are similar to biological parents = genetic influence, where individuals are adopted out and are similar to adopted parents = environmental influence not work for selective adoptions. Twin studies: monozygotic (mz) and dizygotic twins (dz) twin pairs, dz = 50 percent are different, genetic component. Study of the structure and function of genes at a molecular level. Genome wide linkage analysis: use large samples of affected relative pairs, looks for regions on genome that affected relatives share, narrows the search for genes from the whole genome to specific areas on specific chromosomes. Candidate gene association study: compares a large group of individuals who have a specific trait or disease with a well matched group without a trait or disease. Impossible to replicate: limited in ability to understand abnormal behaviour.