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Criminal behaviour (Characterisitics (ONS - victim based crimes and crimes…
Criminal behaviour
Characterisitics
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Farr and Gibbons seven categories for different types of crime:1. property predatory crime, 2. Property fraudulent crime, 3. interpersonal violence general, 4. interpersonal violence sexual, 5. Transactional vice, 6. Order disruption and 7. folk mundane crime
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biological explanations
Genes
MAOA defect gene, MAOA enzymes breaks down serotonin in synapse, Defective MAOA = excess serotonin in the synapse = unregulated moods and possible CB
Brunners Dutch study - 14/28 males had defective CDH13 gene (communication between brain cells and linked to control of impulsive behaviour) and no MAOA gene
Raine twin study - concordance rates of delinquency between MZ and DZ twins = MZ - 52%, DZ - 21% both delinquent
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Amygdala
Coccaro et al - fMRI scans on people with Intermittent explosive disorder Vs control group, IED higher levels of amygdala activity when viewing angry faces
Yu Gao et al - longitudinal study on 1795 ppts, tested for fear response to threatening noise at 3 years and then 23 years old. Those who had committed crime by 23 had showed no fear response at age 3.
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