title: Acoustic and perceptual speech characteristics of native Mandarin speakers with Parkinson's disease.
abstract: This 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.
authors.affiliation: Department of Biobehavioral Sciences, Teachers College, Columbia University, 525 West 120th Street, New York, New York 10027, USA sh3014@tc.columbia.edu.
authors.forename: Sih-Chiao
authors.initials: SC
authors.lastname: Hsu
authors.affiliation: Department of Speech and Hearing Science, Arizona State University, Tempe, Arizona 85287, USA yjiao16@asu.edu.
authors.forename: Yishan
authors.initials: Y
authors.lastname: Jiao
authors.affiliation: Department of Communication Disorders & New Zealand Institute of Language, Brain & Behaviour, University of Canterbury, Private Bag 4800, Christchurch 8140, New Zealand megan.mcauliffe@canterbury.ac.nz.
authors.forename: Megan J
authors.initials: MJ
authors.lastname: McAuliffe
authors.affiliation: Department of Speech and Hearing Science and School of Electrical, Computer, and Energy Engineering, Arizona State University, Tempe Arizona 85287, USA visar@asu.edu.
authors.forename: Visar
authors.initials: V
authors.lastname: Berisha
authors.affiliation: Centre of Parkinson and Movement Disorders, Department of Neurology, National Taiwan University Hospital, College of Medicine, National Taiwan University, No.7, Chung-Shan South Road, Taipei, 100, Taiwan robinwu@ntu.edu.tw.
authors.forename: Ruey-Meei
authors.initials: RM
authors.lastname: Wu
authors.affiliation: Department of Biobehavioral Sciences, Teachers College, Columbia University, 525 West 120th Street, New York, New York 10027, USA elevy@tc.columbia.edu.
authors.forename: Erika S
authors.initials: ES
authors.lastname: Levy
mesh_terms: D000162:Acoustics; D000368:Aged; D000369:Aged, 80 and over; D016022:Case-Control Studies; D003463:Cues; D005260:Female; D006801:Humans; D007802:Language; D008297:Male; D008875:Middle Aged; D010300:Parkinson Disease / Q000175:diagnosis / Q000503:physiopathology / Q000523:psychology*; D013061:Speech Acoustics; D013065:Speech Intelligibility; D013067:Speech Perception; D013068:Speech Production Measurement; D013997:Time Factors; D014833:Voice Quality