The Effects of Intensive Speech Treatment on Conversational Intelligibility in Spanish Speakers With Parkinson's Disease Purpose The purpose of this study was to examine the effects of intensive speech treatment on the conversational intelligibility of Castilian Spanish speakers with Parkinson's disease (PD), as well as on the speakers' self-perceptions of disability. Method Fifteen speakers with a medical diagnosis of PD participated in this ... Research Article
Research Article  |   February 06, 2018
The Effects of Intensive Speech Treatment on Conversational Intelligibility in Spanish Speakers With Parkinson's Disease
 
Author Affiliations & Notes
  • Gemma Moya-Galé
    Teachers College, Columbia University, New York, NY
    UParkinson, Centro Médico Teknon, Grupo Hospitalario Quirón, Barcelona, Spain
  • Alireza Goudarzi
    RIKEN Brain Science Institute, Saitama, Japan
  • Àngels Bayés
    UParkinson, Centro Médico Teknon, Grupo Hospitalario Quirón, Barcelona, Spain
  • Megan McAuliffe
    University of Canterbury, Christchurch, New Zealand
  • Bram Bulté
    Vrije Universiteit Brussel, Belgium
  • Erika S. Levy
    Teachers College, Columbia University, New York, NY
  • 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 Gemma Moya-Galé: gm2446@tc.columbia.edu
  • Editor-in-Chief: Krista Wilkinson
    Editor-in-Chief: Krista Wilkinson×
  • Editor: Kristie Spencer
    Editor: Kristie Spencer×
Article Information
Speech, Voice & Prosodic Disorders / Voice Disorders / Special Populations / Cultural & Linguistic Diversity / Older Adults & Aging / Normal Language Processing / Research Articles
Research Article   |   February 06, 2018
The Effects of Intensive Speech Treatment on Conversational Intelligibility in Spanish Speakers With Parkinson's Disease
American Journal of Speech-Language Pathology, February 2018, Vol. 27, 154-165. doi:10.1044/2017_AJSLP-17-0032
History: Received March 13, 2017 , Revised July 21, 2017 , Accepted September 12, 2017
 
American Journal of Speech-Language Pathology, February 2018, Vol. 27, 154-165. doi:10.1044/2017_AJSLP-17-0032
History: Received March 13, 2017; Revised July 21, 2017; Accepted September 12, 2017

Purpose The purpose of this study was to examine the effects of intensive speech treatment on the conversational intelligibility of Castilian Spanish speakers with Parkinson's disease (PD), as well as on the speakers' self-perceptions of disability.

Method Fifteen speakers with a medical diagnosis of PD participated in this study. Speech recordings were completed twice before treatment, immediately posttreatment, and at a 1-month follow-up session. Conversational intelligibility was assessed in 2 ways—transcription accuracy scores and intelligibility ratings on a 9-point Likert scale. The Voice Handicap Index (Núñez-Batalla et al., 2007) was administered as a measure of self-perceived disability.

Results Group data revealed that transcription accuracy and median ease-of-understanding ratings increased significantly immediately posttreatment, with gains maintained at the 1-month follow-up. The functional subscale of the Voice Handicap Index decreased significantly posttreatment, suggesting a decrease in perceived communication disability after speech treatment.

Conclusion These findings support the implementation of intensive voice treatment to improve conversational intelligibility in Spanish speakers with PD with dysarthria as well as to improve the speakers' perception of their daily communicative capabilities. Clinical and theoretical considerations are discussed.

Acknowledgments
The authors sincerely thank the participants with Parkinson's disease, their families, UParkinson, the team at the Laboratory of Phonetics at the University of Barcelona, and the listeners who took part in this project. The authors also extend their heartfelt thanks to Lisa Edmonds, Elizabeth Tipton, Karen Froud, and Valerie Levy for their insightful feedback.
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