The cerebrum is the largest part of the brain and contains the left and right hemispheres. The left hemisphere controls logic, sequences, and math, while the right hemisphere is more intuitive, artistic, and creative. Each hemisphere controls the opposite side of the body. The cerebrum has four lobes - the occipital lobe processes vision, the temporal lobe processes hearing and memory, the parietal lobe processes touch sensations, and the frontal lobe processes reasoning, motor skills, and speech. Broca's area and Wernicke's area in the frontal and temporal lobes respectively are involved in language production and comprehension.