Neural Theories of Aggression

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  • Created by: PickJ
  • Created on: 14-05-14 19:04
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  • Hormonal Theories of Aggression
    • AO1
      • Serotonin
        • Serotonin in normal levels within the prefrontal cortex inhibits aggressive tendencies & has a calming influence on behaviour
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      • Dopamine
        • The link between dopamine and aggression is not as strong but it is believed that increases in dopamine activity are associated with increases in aggressive behaviour
          • This indicates a positive relationship between the two
            • However, dopamine increases as a result of aggression, not a cause
              • Dopamine is a pleasure chemical which floods D2 receptors when do something rewarding, making us want to repeat that action
                • Brains find aggressive acts rewarding, so individuals likely to repeat the behaviour
                  • Explaining the the increase in dopamine levels
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      • Supporting evidence
        • Animal research studies
          • Raleigh
            • Vervet monkeys fed on an experimental diet high in tryptophan exhibited a decrease in aggressive behaviour
              • While others fed a diet low in tryptophan exhibited high levels of aggressive behaviour


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