An illustration of the human brain seen from the side with colorartion (red) of the speech centers of the brain. The primary auditory cortex (Geman: primäre Hörrinde) can be seen in pink at the top of the orange Wenicke's area.Wernicke's (speech) area, sesor speech centre, is responsible for comprehesion of speech.Boca's (motor speech) area, motor speech centre, is responsible for acticulation.