An overview of the nature, course, and severity of communication disorders resulting from neurological injury or disease, including impact of acquired neurologically-based communication disorders on the geriatric population. Topics include neurological basis of aphasia, dementia, traumatic brain injury, motor speech impairment, and dysphagia, as well as current evaluation strategies and treatment programs for these and related disorders. Effects of normal and pathological aging on speech, voice, language, cognition, hearing, and swallowing will also be examined.