What is aphasia?

Aphasia is a general term for language disorders due to brain dysfunction, not a result of disease of the vocal organs or of intellectual deficiency.
expressive a. Any of several aphasias marked by impaired ability to speak or write, although comprehension of spoken and written language and ability to conceptualize are relatively intact; speech output is labored, ungrammatical, telegraphic, and poorly articulated; the patient is aware of, and visibly frustrated by, the deficit. The brain damage involves chiefly the dominant inferior frontal convolution.
receptive a. Diminished comprehension of written and spoken language. The patient
seems unaware of the deficit. Brain damage involves the area in or near the superior temporal gyrus.

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