Acoustic Predictors of Pediatric Dysarthria in Cerebral Palsy Purpose The objectives of this study were to identify acoustic characteristics of connected speech that differentiate children with dysarthria secondary to cerebral palsy (CP) from typically developing children and to identify acoustic measures that best detect dysarthria in children with CP. Method Twenty 5-year-old children with dysarthria secondary ... Research Article
Research Article  |   March 15, 2018
Acoustic Predictors of Pediatric Dysarthria in Cerebral Palsy
 
Author Affiliations & Notes
  • Kristen M. Allison
    Department of Communication Sciences and Disorders, University of Wisconsin-Madison
    Waisman Center, University of Wisconsin-Madison
  • Katherine C. Hustad
    Department of Communication Sciences and Disorders, University of Wisconsin-Madison
    Waisman Center, University of Wisconsin-Madison
  • Disclosure: The authors have declared that no competing interests existed at the time of publication.
    Disclosure: The authors have declared that no competing interests existed at the time of publication. ×
  • Correspondence to Kristen M. Allison, who is now at Northeastern University, Boston, MA: k.allison@northeastern.edu
  • Editor: Julie Liss
    Editor: Julie Liss×
  • Associate Editor: Maria Grigos
    Associate Editor: Maria Grigos×
Article Information
Speech, Voice & Prosodic Disorders / Dysarthria / Voice Disorders / Hearing & Speech Perception / Acoustics / Special Populations / Genetic & Congenital Disorders / Speech, Voice & Prosody / Speech / Research Articles
Research Article   |   March 15, 2018
Acoustic Predictors of Pediatric Dysarthria in Cerebral Palsy
Journal of Speech, Language, and Hearing Research, March 2018, Vol. 61, 462-478. doi:10.1044/2017_JSLHR-S-16-0414
History: Received November 1, 2016 , Revised May 18, 2017 , Accepted October 20, 2017
 
Journal of Speech, Language, and Hearing Research, March 2018, Vol. 61, 462-478. doi:10.1044/2017_JSLHR-S-16-0414
History: Received November 1, 2016; Revised May 18, 2017; Accepted October 20, 2017
Web of Science® Times Cited: 1

Purpose The objectives of this study were to identify acoustic characteristics of connected speech that differentiate children with dysarthria secondary to cerebral palsy (CP) from typically developing children and to identify acoustic measures that best detect dysarthria in children with CP.

Method Twenty 5-year-old children with dysarthria secondary to CP were compared to 20 age- and sex-matched typically developing children on 5 acoustic measures of connected speech. A logistic regression approach was used to derive an acoustic model that best predicted dysarthria status.

Results Results indicated that children with dysarthria secondary to CP differed from typically developing children on measures of multiple segmental and suprasegmental speech characteristics. An acoustic model containing articulation rate and the F2 range of diphthongs differentiated children with dysarthria from typically developing children with 87.5% accuracy.

Conclusion This study serves as a first step toward developing an acoustic model that can be used to improve early identification of dysarthria in children with CP.

Acknowledgments
This study was funded by Grants R01DC009411 (awarded to Katherine Hustad) and 1F31DC013925-01 (awarded to Kristen Allison) from the National Institute on Deafness and Other Communication Disorders, National Institutes of Health. Support was also provided by the Waisman Center Core Grant P30HD03352 from the National Institute of Child Health and Human Development, National Institutes of Health. We would like to thank the children and families who participated in this study. In addition, we would like to thank Gary Weismer for his insight and advice on this project and Luke Annear for his assistance with data analysis.
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