Contour map of the brain, computer artwork. The contours on this map describe the uneven surface the cortex of the brain, shown here from the left side. This wrinkled tissue is responsible for many higher-level brain functions such as planning and language. The rounded area at lower right is the cerebellum, which exerts control over movement. At the bottom is the brainstem, which leads into the spinal cord. The brainstem controls many involuntary processes such as respiration, salivation and vomiting.