MODEL RELEASED. Speech therapy. Boy playing during a session with a speech therapist after successfully producing a sound. The therapist is holding a mirror that is used to provide the boy with visual feedback about the position of his lips. Correctly produced sounds are rewarded and reinforced with play. Speech therapy is used to treat abnormally developed speech or to correct incoherent speech resulting from an accident or an illness. The therapist is from the Speech Therapy Department of the University of Newcastle, England.