Hsu S.-CJiao YMcAuliffe M.JBerisha VRUEY-MEEI WULevy E.S.2020-02-252020-02-2520170001-4966https://scholars.lib.ntu.edu.tw/handle/123456789/463619This study examines acoustic features of speech production in speakers of Mandarin with Parkinson's disease (PD) and relates them to intelligibility outcomes. Data from 11 participants with PD and 7 controls are compared on several acoustic measures. In speakers with PD, the strength of association between these measures and intelligibility is investigated. Speakers with PD exhibited significant differences in fundamental frequency, pitch variation, vowel space, and rate relative to controls. However, in contrast to the English studies, speech rate was consistently slow and most strongly correlated with intelligibility. Thus, acoustic cues that strongly influence intelligibility in PD may vary cross-linguistically. ? 2017 Acoustical Society of America.[SDGs]SDG3[SDGs]SDG4Neurodegenerative diseases; Acoustic cues; Acoustic features; Fundamental frequencies; Mandarin speakers; Parkinson's disease; Speech production; Speech rates; Vowel space; Speech intelligibility; acoustics; aged; association; case control study; female; human; language; male; middle aged; Parkinson disease; pathophysiology; psychology; speech; speech analysis; speech intelligibility; speech perception; time factor; very elderly; voice; Acoustics; Aged; Aged, 80 and over; Case-Control Studies; Cues; Female; Humans; Language; Male; Middle Aged; Parkinson Disease; Speech Acoustics; Speech Intelligibility; Speech Perception; Speech Production Measurement; Time Factors; Voice Qualityjournal article10.1121/1.4978342283720402-s2.0-85016164643