Speech-language pathology is the stuy of disorders that affect a person's speech, language, cognition, voice disorders, dysphagia and the rehabilitative or corrective treatment of physical and/or cognitive deficits/disorders resulting in difficulty with communication and/or swallowing. Speech-language pathologists (SLPs) or Speech and Language Therapists (SLTs) address people's speech production, vocal production, swallowing difficulties and language needs through speech therapy in a variety of different contexts including schools, hospitals, and through private practice.