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)
Language Centers The Language Centers refer to areas in the brain that are responsible for the functions of understanding and producing language. Traditionally, the Language Centers in the brain refer to Broca's area and Wernicke's area. Broca's area is that part of the brain which when damaged, renders a person unable to express himself through speech, even when he can fully understand language. Wernicke's area on the other hand, is that part of the brain involved in understanding language.