Genetic factors in aggression SANS A03 0.0 / 5 ? PsychologyAggressionA2/A-levelAQA Created by: KatieCreated on: 27-01-20 14:19 what are the 3 ways of measuring the impact of genetics in agression 1. twin studies 2. adoption studies 3. MAOA gene 1 of 24 what do twin studies aim to find concordance rates within MZ twins 2 of 24 who studied twins to find a link with aggression and genetics coccaro et al. 3 of 24 what did coccaro et al find for the concordance rates between DZ twins 19% 4 of 24 what did coccaro find the concorance rate was for MZ twins 50% 5 of 24 what do cocarro's findings suggest a strong link between genetics and agression, but environment canot be ignored 6 of 24 what do twin studies overall suggest heredibility accounts for in aggression 50% variance in agressive behaviour 7 of 24 who do adopion studies study any child who is given up for adoption but still shares characterisitcs with bio parents, even though never met 8 of 24 who carried out a meta analysis on adoption studies rhee and waldman 9 of 24 what was their meta analysis focussed on direct aggression ad anti social behaviour 10 of 24 what did they find the % fthat genetic influences accounted for in aggression 41% 11 of 24 who is this inline with twin studies 12 of 24 what is another name for the MAOA gene warrior gene 13 of 24 what is the MAOA gene, what does it do? an enzyme that braks down important neurotransmiters in the brain 14 of 24 what kind of neurotransmitter is broken down by MAOA serotonin 15 of 24 what happens if MAOA is too high not enough serotonin 16 of 24 what level of serotonin occurs with low MAOA notenough serotoin being broken down 17 of 24 who studied the Dutch family Brunner e al. 18 of 24 what kind of behaviours were these male family members involved in aggressive - ranging from petty crime to **** 19 of 24 what levels of serotonin and MAOA did the find in the family low levels of MAOA, so high serotonin 20 of 24 Who did Frazzetto study children with the MAOA gene and maltreatd in childhood 21 of 24 what model does Frazzetto support diathesis stress 22 of 24 why does his research suppor the model found a link between MAOA and the environment 23 of 24 what combination was the only one to result in aggressive adults maltreated in childhood and low MAOA 24 of 24
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