a patient is unresponsive to sensory stimuli and a brain scan of the cerebrum shows no cortical activity. during surgery to relieve pressure on her brain, the neurologist notices damage to part of her diencephalon, explaining her symptoms. what part is damaged? a patient is unresponsive to sensory stimuli and a brain scan of the cerebrum shows no cortical activity. during surgery to relieve pressure on her brain, the neurologist notices damage to part of her diencephalon, explaining her symptoms. what part is damaged? the epithalamus the subthalamus the hypothalamus the thalamus