Kirshner, Howard S. Department of Neurology, Vanderbilt University School of Medicine, Nashville, Tennessee.
Last reviewed:October 2019
- Language and the brain
- Types of aphasia
- Outlook and recovery
- Related Primary Literature
- Additional Reading
A disorder of language, acquired as a result of brain disease. Aphasia strikes at that most human of attributes—communication with other people. Aphasia must be distinguished from three other conditions: motor speech disorders, developmental language disorders, and psychosis. Motor speech disorders represent abnormalities of speech articulation, caused by weakness or incoordination of the muscles of speech. Aphasia is an acquired loss of previously intact language ability, not a developmental problem, and is often called dysphasia. Psychotic disorders usually involve thought, the content of language, rather than language itself. See also: Brain; Linguistics; Psychosis; Speech; Speech disorders; Speech perception
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