The top isn't a mess of food. This is largely dependent on what you cook. Fish skin sometimes gets cooked on, glaze bubbles and chars, oil lights on fire and the top surface chars. Something like shrimp, tomato, or sausage will be fairly clean though, and nothing will cook on to the top.
Impairment of language, usually caused by left hemisphere damage either to Broca's area (impairment speaking) or Wernicke's area (impairing understanding, damage in rear parietal/temporal region in the left hemisphere)
Wernicke's Area. Wernicke's area is the area of the brain that enables language comprehension; it also plays a role in language development. In 1867 Carl Wernicke suggested that speech comprehension depends on the posterior part of the left frontal lobe of the brain; subsequent studies confirmed this link, and this area became known as Wernicke's area.