CRIMINAL BEHAVIOUR
- Created by: isystedman
- Created on: 04-06-18 08:23
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Criminal Behaviour
Characteristics of Criminal Behaviour
- Far and Gibbons produced many categories of crime focussing on the intention behind it
- The crimes are collected by the ONS
- Crime is normal, we all do it
- Laws are different in every country
- So many different crimes, it's hard to study
Biological Explanation 1 - |Inherited Criminality
Genetic factors;
- Raine found a 52% concordance rate for delinquent behaviour in identical twins compared to 21% rate for non-identical twins
- One gene in particular (the MAOA) known as the 'warrior gene' in shown in abnormally low levels of criminals. Brunner studied a Dutch family involved with **** and murder.
- Maybe epigenetic, this is when genes are switched on and off and will determine behaviour and can be affected by the environment the individual has been in.
Neurotransmitters;
- Reduced activity in the prefrontal cortex
- Low serotonin and high dopamine
- Low noradrenaline
Evaluation of biological explanation 1
Adoption studies;
- Crowe found that adopted kids who had biological parents as criminals were around 40% more likely to have a criminal record by the age of 18
Non-violent crimes;
- Most of the genetic research is done on violent criminals
- Doesn't provide a specific explanation for behaviours such as fraud
- Could just be a social construction
Deterministic;
- In Crowe's adoption study, 60% are still unlikely to turn out criminal
- Could be down to social upbringing.
Biological Explanation 2 - The Role of the Amygdala
Structure and function of the amygdala;
- Located in the temporal lobe and is part of the limbic system
- It is neurally connected to the hypothalamus, hippocampus and the prefrontal cortex.
Amygdala and aggression;
- Coccaro investigated people with explosive behaviour disorders looking at their brain scans. There was high activity in the amygdala when they were angry.
Amygdala and fear conditioning;
- The amygdala is responsible for the association of aggression and punishment
- The child cannot respond to social cues so does not think it's wrong.
Evaluation of biological explanation 2;
Evidence;
- Offer money in an unfair and fairway, high amygdala activity is shown when the unfair option is chosen.
Not just the amygdala;
- It is thought and shown the amygdala does not act on its own to produce aggressive behaviour
- Raine found high activity in the amygdala but low neural activity in the prefrontal cortex so it can't be the amygdala alone
It's only a risk factor;
- Damage to the amygdala means that it can't process fear and anxiety info properly
- Affects the fight or flight response
Individual Differences Explanation 1 - Eysenck's criminal personality
Theory of personality;
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