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Articulatory-acoustic vowel space: Application to clear speech in individuals with Parkinson disease.
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J Commun Disord 2014 Jul;
Authors: Jason A Whitfield, Alexander M Goberman
Individuals with Parkinson disease (PD) often exhibit decreased range of movement secondary to the disease process, which has been shown to affect articulatory movements. A number of investigations have failed to find statistically significant differences between control and disordered groups, and between speaking conditions, using traditional vowel space area measures. The purpose of the current investigation was to evaluate both between-group (PD versus control) and within-group (habitual versus clear) differences in articulatory function using a novel vowel space measure, the articulatory-acoustic vowel space (AAVS).
PMID: 25074511 [PubMed - as supplied by publisher]