Among his oil-field buddies Conrad was known as a cheerfullyprofane hard drinker who was seldom averse to a barroom scrap. Butafter he suffered a head injury in a car accident he returned towork as a docile timid man who could no longer deal with theviolent activity of a drill rig platform. His physicians determinedthat damage to his __________ was the likely cause of his changedbehavior.A. amygdalaB. hippocampusC. cerebellumD. thalamus
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