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Neurons and hormones

Biological explanations of aggression assume that the propensity for aggressive behaviour lies in an
individual's biological constitution. A number of biological factors have been identified.

For example, the male sex hormone testosterone is thought to influence aggression in both males and
females. Evidence for this association comes…

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levels of dopamine and an increase in aggressive behaviour consequently these findings increase the
credibility of this explanation as the findings support the explanation.

However, this study is low in temporal validity because it was conducted in 1997 and since then the
world has developed medically, so the readings may…

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