Impact of Pallidotomy on Physiological Articulation Function and Speech Intelligibility in Parkinson Disease.

Impact of Pallidotomy on Physiological Articulation Function and Speech Intelligibility in Parkinson Disease.

The objective of this study was to evaluate the effects of posteroventral pallidotomy on perceptual and physiological measures of articulatory function and speech intelligibility in Parkinson disease (PD). The study examined 11 participants with PD who under-went posteroventral pallidotomy. Physiological measures of lip and tongue function and perceptual measures of speech intelligibility were obtained prepallidotomy […]

Variability Within and Across Physiological Systems in Dysarthria: A Comparison of STI and VOT.

Variability Within and Across Physiological Systems in Dysarthria: A Comparison of STI and VOT.

There are many sources of variability within the speech production system. It is not known if variability within a system is associated with variability across physiological systems. In this investigation, eight individuals with dysarthria and six individuals with no neurological disorders repeated an utterance in four speaking conditions. The spatio-temporal index (STI), a composite measure […]