PSYC 440 Lecture 6: Lecture 6 - Early Life Adversity and Behavioral Genetics
11 Feb 2018
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Passive vs. evocative gene-environment correlation: the difference: Active gene-environment correlation is choosing an environment that matches your genotype. Evocative gene-environment correlation is the gene that influences the individual: exercise, scenario: Study with children with anxiety disorders: carriers of the s allele of the 5-httlpr serotonin transporter gene responded better to cbt, summary: Lecture 6 early life adversity and behavioral genetics. The sound (environment) you get form your piano (gene) depends on how you play it (epigenetics): epigenetics, evidence from, twin studies: Genetically identical twins (same dna sequence) have differences in epigenetic processes (e. g. , dna methylations): Increase with age: dna methylation (i. e. part of the epigenetic system): Depressive symptoms have been linked to methylation in the genes regulating hpa axis (i. e. stress system) and serotonin system. Associated with altered methylation in stress-related genes in the placenta (i. e. stress even before birth can have an effect on the child). Procedure: anxiety disorder patients had 6-8 weeks of cbt.
