frontal lobe
US /ˈfrʌn.təl loʊb/
UK /ˈfrʌn.təl loʊb/

1.
the part of each hemisphere of the brain located behind the forehead, involved in planning, decision-making, and personality
:
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Damage to the frontal lobe can affect a person's personality and executive functions.
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The frontal lobe plays a crucial role in problem-solving and emotional regulation.