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Impairment of articulation caused by any disorder or lesion affecting the tongue or speech muscles.



a disorder of articulate speech, expressed in difficult or distorted pronunciation of certain words, syllables, and sounds (mainly consonants). It arises as a result of diseases of various parts of the brain or disruption of innervation of the vocal cords, the muscles of the soft palate, or the facial or respiratory muscles; it also occurs because of harelip, cleft palate, or the absence of teeth. As a secondary consequence of dysarthria, one often observes a disturbance in writing, caused by the difficulty in distinct enunciation of the sound composition of a word. Dysarthria may be expressed in varying degrees. In serious cases speech becomes incomprehensible, which limits communication with others and leads to secondary deviations in general development. The removal of speech defects characteristic of dysarthria is achieved by means of logopedic therapy or by treatment of the basic disease causing it.

References in periodicals archive ?
Early identification will prevent the impairment of speech, language, and cognitive development that is common in babies whose hearing loss is detected later; 14 months is currently the average age of detection of significant hearing loss, according to the AAP policy statement.
The victim, he said, who was in hospital for seven months, suffered serious injuries which had left her with long-term memory loss, weakness to the muscles on the left-hand side of her body and permanent impairment of speech.
Sentencing the pair at Belfast Crown Court, Judge Patrick Markey said: "This is a terrible crime in which the victim has been caused brain death to half of her brain, with impairment of speech and memory for the rest of her life.