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Neurotransmitters are chemicals in the brain that allow impulses from one part of the brain to be
transmitted to another area. All behaviour is influenced by the action of neurotransmitters. Two
neurotransmitters are believed to be particularly important in the control of aggressive behaviour.
Aggression in both animals and humans…

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researchers have long suspected a relationship between dopamine and aggression, such
studies have shown that it's been difficult to demonstrate this experimentally.

Ferrari et al has found support for both the influence of both serotonin and dopamine in
aggressive behaviour. They allowed a rat to fight every 10 days at…

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Although cortisol alone isn't thought to increase aggression directly, Dabbs et al found that high
levels of cortisol inhibit testosterone and this in turn inhibits aggression. So by inhibiting
testosterone, cortisol can affect aggression levels because it increases anxiety and he
likelihood of social withdrawal. Studies have reported low levels…


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