PSYCH 270 Lecture Notes - Lecture 33: Heritability, Cortisol, Reuptake
Document Summary
Biological factors mdd: genes influence mdd, about 50% heritability, equal genetic and environment influence, polygenic: Influenced by many different genes: lower levels of neurotransmitter serotonin, chronic activation of stress-reactive hypothalamic-pituitary-adrenal (hpa) Increased cortisol (stress hormone) long-term : problems in brain regions that regulate emotion (ex: pfc, makes it harder to deal with stress. Causes: social factors bipolar: schedule disrupting events (sleep loss) and goal attainment, surge in positive emotions and activity, mania, hostile or critical families relapse, low social support higher relapse, slower recovery. Increases reinforcement and reduces punishment for being active: cognitive therapy, change maladaptive schemas to more rational, adaptive ones, reappraisal: Increase flexible thinking and attention to positive factors: change the way you interpret situations. Interpersonal therapy: develop better understanding of interpersonal problems, change ways of relating with others to counter depression, electroconvulsive therapy is also used for, severe depression, catatonia.
