Several vowel acoustics parameters (e.g., second formant frequency (F2) slope, vowel space area) are known to significantly contribute to speech intelligibility in dysarthria (Kim, Kent, Weismer, 2011; Lansford & Liss, 2014). Particularly, F2 slope has been identified as an important predictor of speech intelligibility regardless of underlying neuropathologies of dysarthria (Kim, Weismer, Kent & Duffy, 2009). The current study focuses on intra-speaker modifications of F2 slope in speakers with Parkinson’s disease (PD) voluntarily elicited across three speaking modes, less clear, conversational, and more clear speech, in recognition that prior work has mostly focused on inter-speaker comparisons. Varying speech clarity was our interest, given its wide use as an efficient behavioral therapeutic approach in clinic. Twenty speakers (10 PD, 10 neurologically healthy) were asked to read diphthongs embedded in real words. Diphthongs were chosen because they require a significant change in configuration of vocal tract and, therefore, are sensitive to the presence/severity of dysarthria. In the presentation, distributions of F2 slope 1) between PD and healthy speakers, and 2) across speaking modes within each speaker will be discussed. In addition, articulatory data will be presented for part of the speakers from whom kinematic data were obtained using the electromagnetic articulography (EMA) system.
Skip Nav Destination
Article navigation
September 2018
Meeting abstract. No PDF available.
September 01 2018
Diphthong productions in speakers with Parkinson’s disease across speaking modes
Yunjung Kim;
Yunjung Kim
Louisiana State Univ., 86 Hatcher Hall, Baton Rouge, LA 70803, [email protected]
Search for other works by this author on:
Austin R. Thompson
Austin R. Thompson
Louisiana State Univ., Baton Rouge, LA
Search for other works by this author on:
J. Acoust. Soc. Am. 144, 1967 (2018)
Citation
Yunjung Kim, Austin R. Thompson; Diphthong productions in speakers with Parkinson’s disease across speaking modes. J. Acoust. Soc. Am. 1 September 2018; 144 (3_Supplement): 1967. https://doi.org/10.1121/1.5068599
Download citation file:
Citing articles via
All we know about anechoic chambers
Michael Vorländer
A survey of sound source localization with deep learning methods
Pierre-Amaury Grumiaux, Srđan Kitić, et al.
Performance study of ray-based ocean acoustic tomography methods for estimating submesoscale variability in the upper ocean
Etienne Ollivier, Richard X. Touret, et al.
Related Content
Relation of second formant trajectories to tongue kinematics
J. Acoust. Soc. Am. (April 2019)
Transition characteristics in speakers with dysarthria and in healthy controls: Part IV: Additional data on vital capacity transitions and stroke patients.
J Acoust Soc Am (March 2010)
Consonant‐vowel and diphthong transitions in the speech of persons with dysarthria and of healthy controls.
J Acoust Soc Am (October 2008)
Understanding dysrhythmic speech: When rhythm does not matter and learning does not happen
J. Acoust. Soc. Am. (May 2018)
Acoustic characteristics of diphthongs in Parkinson's disease
J Acoust Soc Am (October 2011)