PSY 1102 Lecture Notes - Lecture 4: Heritability, Bulimia Nervosa, Epigenetics

• School: University of Ottawa
• Department: Psychology
• Course: PSY 1102
• Professor: Najwa Haddad

Document Summary

We possess the same characteristics and abilities but we differ in the extent of these characteristics. Investigates relative effects of heredity (nature) and environment (nurture) on behaviour. Non- genetic circumstances that surrounds/influences thoughts, feelings, behaviour. *identical twins= identical genes, fraternal twins= same differences as brothers/sisters* *identical twins more likely to both develop alzheimer"s, or any other psychological disorder, same as odds of getting divorced, personality characteristics, intelligence, likelihood of drinking and driving. Twins grown up apart (environment is the variable) Main difference is found in the twins" personality due to the environment. Identical twins reared apart are more similar than fraternal twins reared apart. Adopted children compared to biological and adoptive parents rsity. Adopted children compared to biological and adoptive parents. Biological parents contribute genes, adoptive parents contribute environment. More similar to biological parents in terms of personality, intelligence, etc. Children are similar to adoptive parents in terms of values, manners, faith, politics.