The frontal lobes are in charge of restraining inappropriate behaviors, to allow a person to act more socially acceptably. Therefore damage to the frontal lobe can cause aggression.
There has been evidence to link damage to the frontal lobe and aggression since the 1800s. In 1848, Phineas Gage had a accident at work, A temping iron was projected through his skull, it is believed the iron went through the frontal lobe.He was described to be more aggressive, impulsive and impatient after the accident.
AO2
This suggests that the frontal lobe is important in controlling aggression. However, it is impossible to be 100% certain where to the damage was done, as this was over 150 years ago. Also this i a case study, therefore it cannot be generalized to the general population.
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