PSY 220 Lecture Notes - Lecture 7: Executive Functions, Amygdala, Monoamine Oxidase A
16 Feb 2017
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Document Summary
Literature review: summarizes published empirical research. Peer-reviewed: published in a scientific journal which uses peer-review to evaluate merits, other experts critique and decide whether articles is accurate and worth publishing. Description: research on genes and environments (experiences) that put individuals at- risk for maladaptive outcomes. Explanation: mechanisms for why some people, in spite of these risks, turn out well. Genes regulate biological processes (how much maoa enzyme is expressed/ how. Short v. long 5-htt (how serotonin is cleared from synapse) Genetically regulated biological processes may interact with environment and affect behavior) Positive adaptation despite exposure to adverse circumstances (absences of pathology; presence of competence) gxe. Low maoa and short 5-htt: larger amygdala responses (key brain area in processing emotional stimuli) to fearful or angry faces. Low maoa: less activity in frontal area (key brain area for planning and control), small area related to cognitive control. Kaufmann et al. (2006) study: double whammies (childhood maltreatment and genetic risk)
