Abnormal Psychology lecture 6

Abnormal Psychology lecture 6 - Abnormal Psychology 9/12/11...

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Abnormal Psychology 9/12/11 Genetic contributions The nature of genes o Help determine but not absolute o Environment is a huge contributor as well Genes are long molecules of deoxyribonucleic acid, DNA, found in chromosomes o Human development and behavior is often polygenic, influenced by many genes Genetic contribution to psychopathology o Explain less than 50% of disorder (more effected by environment) Interaction of genetic and environment Eric Kandel: proposed that learning/ environment can change genetic structure of cells that were dormant or inactive The Diathesis- Stress Model o Both an inherited tendency (diathesis or vulnerability) and specific stressful conditions are required to produce a disorder o Vulnerability does not necessarily lead to a disorder, unless specific stressor occurs The smaller the vulnerability, the greater the life stress required to produce the disorder o The diathesis is genetically based and the stress is environmental but they must interact to produce a disorder (small diathesis- larger stressor) Reciprocal Gene-Environmental Model o Genetically determined tendency to create the environmental risk factors that trigger genetic vulnerabilities (predetermined to put themselves in these
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This note was uploaded on 10/24/2011 for the course BIOLOGY 1402 taught by Professor Held during the Fall '11 term at Texas Tech.

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Abnormal Psychology lecture 6 - Abnormal Psychology 9/12/11...

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