Self-Judgments of Word Production Accuracy in Acquired Apraxia of Speech Purpose The ability to recognize one's own speech errors has long been considered a clinical feature of acquired apraxia of speech (AOS) despite limited empirical data supporting this notion. This study was designed to (a) investigate the ability of speakers with AOS to self-judge the accuracy of their own word ... Research Article
Research Article  |   December 01, 2016
Self-Judgments of Word Production Accuracy in Acquired Apraxia of Speech
 
Author Affiliations & Notes
  • Julie Wambaugh
    VA Salt Lake City Health Care System, UT
    University of Utah, Salt Lake City
  • Linda Shuster
    Western Michigan University, Kalamazoo
  • Dallin J. Bailey
    VA Salt Lake City Health Care System, UT
    University of Utah, Salt Lake City
  • Shannon Mauszycki
    VA Salt Lake City Health Care System, UT
    University of Utah, Salt Lake City
  • Jacob Kean
    VA Salt Lake City Health Care System, UT
    University of Utah, Salt Lake City
  • Christina Nessler
    VA Salt Lake City Health Care System, UT
  • Sandra Wright
    VA Salt Lake City Health Care System, UT
  • Jessica Brunsvold
    VA Salt Lake City Health Care System, UT
  • 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 Julie Wambaugh: julie.wambaugh@health.utah.edu
  • Editor: Anastasia Raymer
    Editor: Anastasia Raymer×
  • Associate Editor: Katarina Haley
    Associate Editor: Katarina Haley×
Article Information
Speech, Voice & Prosodic Disorders / Apraxia of Speech & Childhood Apraxia of Speech / Supplement: Select Papers From the 45th Clinical Aphasiology Conference / Research Articles
Research Article   |   December 01, 2016
Self-Judgments of Word Production Accuracy in Acquired Apraxia of Speech
American Journal of Speech-Language Pathology, December 2016, Vol. 25, S716-S728. doi:10.1044/2016_AJSLP-15-0139
History: Received September 15, 2015 , Revised February 15, 2016 , Accepted April 5, 2016
 
American Journal of Speech-Language Pathology, December 2016, Vol. 25, S716-S728. doi:10.1044/2016_AJSLP-15-0139
History: Received September 15, 2015; Revised February 15, 2016; Accepted April 5, 2016

Purpose The ability to recognize one's own speech errors has long been considered a clinical feature of acquired apraxia of speech (AOS) despite limited empirical data supporting this notion. This study was designed to (a) investigate the ability of speakers with AOS to self-judge the accuracy of their own word productions and (b) examine the test–retest stability of a measure to quantify the self-judgments of speakers with AOS.

Method Twenty-four speakers with AOS and aphasia repeated mono- and multisyllabic words. After each word, they indicated whether their production was correct or incorrect. This procedure was repeated 1 week later to examine performance stability.

Results Percentage of incorrect word productions was stable for the group across times. Accuracy of judgments ranged from 64% to 100% at Time 1 and from 56% to 100% at Time 2. Inaccurate judgments of error productions (false positives) occurred much more frequently than inaccurate judgments of correct productions (false negatives).

Conclusions Error production was remarkably stable in our participants. As a group, the participants failed to detect almost one third of words produced erroneously. However, accuracy and stability of judgments over sampling times varied across participants. Findings suggest that error awareness might be a worthwhile target for treatment in some individuals with AOS.

Acknowledgments
This research was supported by United States Department of Veterans Affairs Rehabilitation Research and Development Service Merit Review Award RX-000363-01A1 and Research Career Scientist Award 23727. The contents do not represent the views of the United States Department of Veterans Affairs or the United States Government. Thanks to Nichole Akiyama and Kiera Berggren for their assistance with this project.
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