Abstract:
Neuropsychological and neuropathological research of the brain is on the rise and is discovering interesting phenomena for science. Dysarthria is a disorder that occurs as a result of a brain condition that often makes it very difficult to articulate sounds and pronounce words, leading to impairments in the intelligibility, audibility, naturalness and efficiency of vocal communication. There are many potential causes of dysarthria. These include toxic, metabolic, degenerative diseases, traumatic brain injury, or thrombotic or embolic stroke. Central or peripheral neurological lesions can lead to paralysis or a lack of coordination of the verbo-motor system, producing severe speech disorders, which in turn prevent control over the tongue, throat, lips or lungs; for example, swallowing (dysphagia) and mastication problems. Dysarthria is different from verbal apraxia, it does not include speech disorders generated by structural anomalies (malformations). The symptomatology is very diverse, depending on the intensity of the neuronal damage, which is correlated with the etiology, which includes toxic, metabolic, degenerative diseases, traumatic brain injuries or thrombotic or embolic stroke. From the perspective of the location of the lesion on the brain, the classification of dysarthria is presented, and the forms are described.
