The cerebrum is the part of the brain that regulates higher levels of cognitive and emotional functioning. The cerebral cortex is composed of billions of cells from the outermost layer of the cerebrum. The two nearly symmetrical halves of the cerebrum are the cerebral hemispheres. The two hemispheres are connected by a thick mass of nerve fibers, collectively referred to as the corpus callosum. The central sulcus divides each hemisphere vertically.
Lateral fissures divide each lobe horizontally.
The frontal lobe is involved with motor control and cognitive planning, decision making, setting goals, and purposeful behavior. The parietal lobe controls incoming sensory information. The occipital lobe, the final destination for visual information, is located in the back of the head. The Cortical Functions. The motor cortex controls the actions of the body's voluntary muscles.