The cerebral cortex or gray matter covers the outer portion of the cerebrum and cerebellum. It is divided into the right and left hemispheres and is responsible for thinking, understanding language as well as speaking and processing information. Our senses correspond to specific areas in the cerebral cortex. Reasoning occurs here as well. Language occurs in the left hemisphere. The parietal lobe is involved in receiving and processing sensory information. The occipital lobe is involved with sight and the frontal lobe is involved in problem solving and planning. The temporal lobe is involved in memory, emotion, hearing and language. A typical behavior one could engage in is singing a song. It would require the temporal lobe for hearing and language as well as memory to recall the words to the song. The parietal lobe would also be needed to receive and process the music so that one could sing along accordingly. The frontal lobe would be needed to plan which song to sing and how to approach its delivery to an audience. As to the more primitive parts of the brain, the cerebellum helps with balance and coordination whenever you do any behavior and the medulla regulates automatic reflexes such as respiration, heart rate and blood flow--all necessary and required life processes allowing one to carry out any behaviors they choose to do.