The outer gray matter layer of the cerebrum which is responsible for most complex behavior. Like making reasoned choices, concentrating on tasks, planning for the future, behaving appropriately in social situations. They are four lobes of the brain which are the temporal lobe, the occipital lobe, the parietal lobe, and the frontal lobe. The frontal lobe deals with thinking, behavior, memory, and movement. The parietal lobe deals with language and touch. The occipital lobe deals with sight. The temporal lobe deals with hearing, learning, and feelings.