Perceptual analysis of acquired dysarthria

Abstract

The term 'dysarthria' refers to a speech motor execution disorder that arises from damage to the central and/or peripheral nervous system. The condition is linked to various neurological acute pathologies (like stroke or head trauma), neurodegenerative illnesses (such as Parkinson's disease or amyotrophic lateral sclerosis), and progressive or inflammatory disorders (like multiple sclerosis).

Neurological lesions can impact the systems involved in speech production, such as the ventilatory system, the laryngeal stage, the articulators, and the resonators. This can ultimately lead to dysarthria, which can have a wide range of effects on vocal breathing, voice quality, articulation, resonance, and prosody, either independently or in combination. However, there is little research in this field in Arabic. Currently, there is limited research on perceptual assessment in speech therapy. Therefore, in order to further this area of research, we will conduct a perceptual analysis on a case of post-stroke dysarthria.