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5 Cards in this Set
- Front
- Back
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How are neurotransmitters related to aggression? |
Neurotransmitters are chemicals that enable impulses within the brain to be transmitted from one area of the brain to another. |
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What are the main neurotransmitters that are associated with aggression? |
1) Low levels of serotonin. 2) High levels of dopamine. |
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Mann et al's study on serotonin. |
He gave 35 healthy subjects dexfenfluramine, which is known to deplete serotonin. using a questionnaire to asses hostility and aggression levels, they found that dexfenfluramine treatment in males (but not females) was associated with an increase in hostility and aggression scores. |
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Studies on dopamine levels: Lavine and Buitelaar |
1) Lavine found increased levels of dopamine activity via the use of amphetamines have also been associated with increases in aggressive behaviour.
2) Buitelaar found that antipsychotics, which reduce dopamine activity in the brain, have been shown to reduce aggressive behaviour in violent delinquents. |
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Neurotransmitters and aggression: Evaluation: (AO3) |
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