In other words, it is a condition in which problems effectively occur with the muscles that help produce speech, often making it very difficult to pronounce words. Dysarthrias are classified in multiple diagnosis and evaluation in speech pathology pdf based on the presentation of symptoms. Ataxic dysarthria is an acquired neurological and sensorimotor speech deficit.
Growing evidence supports the likelihood of cerebellar involvement specifically affecting speech motor programming and execution pathways, producing the characteristic features associated with ataxic dysarthria. Some of the most consistent abnormalities observed in patients with ataxia dysarthria are alterations of the normal timing pattern, with prolongation of certain segments and a tendency to equalize the duration of syllables when speaking. As the severity of the dysarthria increases, the patient may also lengthen more segments as well as increase the degree of lengthening of each individual segment. Ataxic dysarthria is associated with damage to the left cerebellar hemisphere in right-handed patients. The etiology, degree of neuropathy, existence of co-morbidities, and the individual’s response all play a role in the effect the disorder has on the individual’s quality of life. Severity ranges from occasional articulation difficulties to verbal speech that is completely unintelligible. Examples of specific observations include a continuous breathy voice, irregular breakdown of articulation, monopitch, distorted vowels, word flow without pauses, and hypernasality.
There are many potential causes of dysarthria. They include toxic, metabolic, degenerative diseases, traumatic brain injury, or thrombotic or embolic stroke. Articulation problems resulting from dysarthria are treated by speech language pathologists, using a variety of techniques. Techniques used depend on the effect the dysarthria has on control of the articulators.
Depending on the severity of the dysarthria, another possibility includes learning how to use a computer or flip cards in order to communicate more effectively. LSVT may improve voice and speech function in PD. Regularity of practice, and when to practice, are the main issues in PML treatments, as they may determine the likelihood of generalization of new motor skills, and therefore how effective a treatment is. These allow people who are unintelligible, or may be in the later stages of a progressive illness, to continue to be able to communicate without the need for fully intelligible speech. Dysarthria in stroke: A narrative review of its description and the outcome of intervention”.