Identification and Remediation of Phonological and Motor Errors in Acquired Sound Production Impairment Purpose This study aimed to test whether an approach to distinguishing errors arising in phonological processing from those arising in motor planning also predicts the extent to which repetition-based training can lead to improved production of difficult sound sequences. Method Four individuals with acquired speech production impairment who ... Research Article
Research Article  |   June 22, 2017
Identification and Remediation of Phonological and Motor Errors in Acquired Sound Production Impairment
 
Author Affiliations & Notes
  • Adam Buchwald
    New York University
  • Bernadine Gagnon
    Teachers College, New York
  • Michele Miozzo
    The New School for Social Science Research, New York
    Johns Hopkins University, Baltimore, MD
  • 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 Adam Buchwald: buchwald@nyu.edu
  • Editor: Yana Yunusova
    Editor: Yana Yunusova×
  • Associate Editor: Kristie Spencer
    Associate Editor: Kristie Spencer×
Article Information
Speech, Voice & Prosodic Disorders / Apraxia of Speech & Childhood Apraxia of Speech / Language Disorders / Aphasia / Speech, Voice & Prosody / Special Issue: Selected Papers From the 2016 Conference on Motor Speech—Basic and Clinical Science and Technology / Research Articles
Research Article   |   June 22, 2017
Identification and Remediation of Phonological and Motor Errors in Acquired Sound Production Impairment
Journal of Speech, Language, and Hearing Research, June 2017, Vol. 60, 1726-1738. doi:10.1044/2017_JSLHR-S-16-0240
History: Received June 15, 2016 , Revised October 25, 2016 , Accepted November 24, 2016
 
Journal of Speech, Language, and Hearing Research, June 2017, Vol. 60, 1726-1738. doi:10.1044/2017_JSLHR-S-16-0240
History: Received June 15, 2016; Revised October 25, 2016; Accepted November 24, 2016

Purpose This study aimed to test whether an approach to distinguishing errors arising in phonological processing from those arising in motor planning also predicts the extent to which repetition-based training can lead to improved production of difficult sound sequences.

Method Four individuals with acquired speech production impairment who produced consonant cluster errors involving deletion were examined using a repetition task. We compared the acoustic details of productions with deletion errors in target consonant clusters to singleton consonants. Changes in accuracy over the course of the study were also compared.

Results Two individuals produced deletion errors consistent with a phonological locus of the errors, and 2 individuals produced errors consistent with a motoric locus of the errors. The 2 individuals who made phonologically driven errors showed no change in performance on a repetition training task, whereas the 2 individuals with motoric errors improved in their production of both trained and untrained items.

Conclusions The results extend previous findings about a metric for identifying the source of sound production errors in individuals with both apraxia of speech and aphasia. In particular, this work may provide a tool for identifying predominant error types in individuals with complex deficits.

Acknowledgments
The research and preparation of this article were supported by a grant from the NYU University Research Challenge Fund and National Institutes of Health Grant K01DC014298 to Adam Buchwald. The authors would like to thank Rebecca Martinez, Toby Shaw, Jennifer Wang, Karen Hong, and Brittany Sugzda for help with data collection and analysis.
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