![]() Dysarthria may also co-occur with other neurogenic language, cognitive, and swallowing disorders. Dysarthria can adversely affect intelligibility of speech and/or naturalness of speech. These changes are due to one or more sensorimotor problems, including weakness or paralysis incoordination involuntary movements or excessive, reduced, or variable muscle tone (Duffy, 2020). See the Dysarthria Evidence Map for summaries of available research on this topic.ĭysarthria refers to a group of neurogenic speech disorders characterized by “abnormalities in the strength, speed, range, steadiness, tone, or accuracy of movements required for breathing, phonatory, resonatory, articulatory, or prosodic aspects of speech production” (Duffy, 2020, p. The scope of this page is limited to acquired dysarthria in adults. ![]() ![]() Dysarthria can result from congenital conditions, or it can be acquired at any age as the result of a neurologic injury, disease, or disorder. ![]()
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