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Brain functioning as an explanation of aggression (SEROTONIN…
Brain functioning as an explanation of aggression
DOPAMINE
Associated with pleasure and reward feelings
Linked to drug addiction or other addictions
Can be prescribed to people with depression
More Dopamine = More Aggression
Linked to schizophrenia --> increased rates of aggression amongst schizophrenic population due to Dopamine levels
NEUROTRANSMITTER
FORMULA = C8H11NO2
SEROTONIN
NEUROTRANSMITTER --> a chemical messenger that carries/boosts and balances signals between neurones, nerve cells and other cells in the body
More Serotonin = Less Aggression
Found mainly in the brain, bowels and blood platelets
Contributes to wellbeing and happiness
Sleep and Wake cycle = Melatonin
FORMULA = C10H12N20
Linked to amygdala = prevents stimulation of amygdala that leads to aggression
POPOVA et al --> SEROTONIN
Found that among dogs that have been bred for docile temperament, there has been a corresponding increase of brain Serotonin
Suggests that there is a link between low levels of Serotonin and high levels of Aggression
MANN et al --> SEROTONIN
Gave participants the drug DEXFENFLURAMINE, which uses up levels of Serotonin in brain.
Researchers then used a questionnaire to assess hostility (aggression and danger) levels, which were raised after taking DEXFENFLURAMINE in males but not in females
LAVINE (1997) --> DOPAMINE
Found that an increase in Dopmine levels through the use of Amphetamines (drug), was associated with an increase in aggressive behaviour
Suggesting that higher levels of Dopamine correlate with higher levels of aggression