Kirshner, Howard S. Department of Neurology, Vanderbilt University School of Medicine, Nashville, Tennessee.
Last reviewed:February 2021
- 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 is impairment in the use of spoken or written language caused by brain disorders (see illustration) that cannot be explained by paralysis or incoordination of the articulatory organs, impairment of hearing or vision, impaired level of consciousness, or impaired motivation to communicate. Thus, aphasia strikes at a key human attribute—communication with other people. However, 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, that is, the content of language, rather than language itself. See also: Brain; Linguistics; Psycholinguistics; Psychosis; Speech; Speech disorders; Speech perception
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Contributors include more than 10,000 highly qualified scientists and 46 Nobel Prize winners.
MORE THAN 8700 articles covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 19,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information