There are three main areas of the brain involved in language ability: Broca's area, Wernicke's area, and the supplementary motor area. Broca's area is involved in speech production. Wernicke's area is involved in speech comprehension. The supplementary motor area is involved in the physical ability to reproduce speech. According to the localization view, specific language functions can be mapped to specific areas of the brain, with information passing from Wernicke's area to Broca's area and then to the supplementary motor area during speech.