Final answer:
Damage to the frontal lobe can result in changes in behavior and personality.
Step-by-step explanation:
The region of the brain that would have to be damaged to produce changes in behavior and personality after a pole is driven through the skull, like in the case of Phineas Gage, is the frontal lobe. The frontal lobe is responsible for higher cognitive functions, decision-making, reasoning, personality, and behavior. Damage to the frontal lobe can lead to a variety of changes in an individual's behavior and personality, as seen in Phineas Gage's case.
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