PSY 280 Lecture Notes - Lecture 2: Frontal Lobe, Psychopathology, Etiology
Document Summary
Etiology: cause/source of a certain condition or stress. Most things they find turn out to be polygenetic. Behavioral genetics: mutual influence of genes and environment. Helps differentiate which portion is from the genes and which is from the environment. 2 people either both or do not have a disorder. Discordance rate: when one person has the disorder and the other person does not. Relatives have higher concordance than with non family members. The problem is that you don"t know if the familial influence is genetic or from the environment. People end up matched with a child that looks like it belonged to them. The age when they were adopted also makes a difference. Mz twins are often lumped together as one entity and can have different experiences than dz twins. The gene and the environment create the disorder. If you have the predisposition (diatheses), then is triggered by environmental stressors (stress), you will develop a disorder.
