Which region of the brain appears to have the oldest evolutionary history?2.___________ Who would have been most likely to claim that a slight protrusion in a certain region of someone’s skull indicated that the individual had an optimistic personality?

Which region of the brain appears to have the oldest evolutionary history?2.___________ Who would have been most likely to claim that a slight protrusion in a certain region of someone’s skull indicated that the individual had an optimistic personality?