Treatment for Acquired Apraxia of Speech: Examination of Treatment Intensity and Practice Schedule Purpose The authors designed this investigation to extend the development of a treatment for acquired apraxia of speech (AOS)—sound production treatment (SPT)—by examining the effects of 2 treatment intensities and 2 schedules of practice. Method The authors used a multiple baseline design across participants and behaviors with 4 ... Research Article
Research Article  |   February 01, 2013
Treatment for Acquired Apraxia of Speech: Examination of Treatment Intensity and Practice Schedule
 
Author Affiliations & Notes
  • Julie L. Wambaugh
    VA Salt Lake City Health Care System, Salt Lake City, UT
    University of Utah, Salt Lake City
  • Christina Nessler
    VA Salt Lake City Health Care System, Salt Lake City, UT
  • Rosalea Cameron
    VA Salt Lake City Health Care System, Salt Lake City, UT
    University of Utah, Salt Lake City
  • Shannon C. Mauszycki
    VA Salt Lake City Health Care System, Salt Lake City, UT
    University of Utah, Salt Lake City
  • Correspondence to Julie L. Wambaugh: Julie.wambaugh@health.utah.edu
  • Editor: Carol Scheffner Hammer
    Editor: Carol Scheffner Hammer×
  • Associate Editor: Dianne Kendall
    Associate Editor: Dianne Kendall×
Article Information
Speech, Voice & Prosodic Disorders / Apraxia of Speech & Childhood Apraxia of Speech / Research Articles
Research Article   |   February 01, 2013
Treatment for Acquired Apraxia of Speech: Examination of Treatment Intensity and Practice Schedule
American Journal of Speech-Language Pathology, February 2013, Vol. 22, 84-102. doi:10.1044/1058-0360(2012/12-0025)
History: Received March 21, 2012 , Accepted August 28, 2012
 
American Journal of Speech-Language Pathology, February 2013, Vol. 22, 84-102. doi:10.1044/1058-0360(2012/12-0025)
History: Received March 21, 2012; Accepted August 28, 2012
Web of Science® Times Cited: 11

Purpose The authors designed this investigation to extend the development of a treatment for acquired apraxia of speech (AOS)—sound production treatment (SPT)—by examining the effects of 2 treatment intensities and 2 schedules of practice.

Method The authors used a multiple baseline design across participants and behaviors with 4 speakers with chronic AOS and aphasia. Accuracy of production of trained and untrained words in phrases served as the dependent measure. Participants received 4 permutations of SPT (i.e., intensive–blocked, intensive–random, traditional–blocked, and traditional–random) applied sequentially to different lists of words.

Results Positive changes in accuracy of articulation were observed for all participants for all phases of treatment. Two participants had a slightly poorer response to the traditional–random application of treatment. However, no clinically meaningful differences were noted among treatment applications when follow-up data were considered.

Conclusions Findings from this preliminary Phase II investigation suggest that similar outcomes may be achieved with SPT applied with different treatment intensities and different practice schedules. Extending treatment to achieve higher levels of accuracy may have improved maintenance effects, which may have revealed possible differences among conditions. In addition, overlap in methods used for random and blocked practice may have minimized distinctions between these conditions.

Acknowledgments
This research was supported by the Department of Veterans Affairs, Rehabilitation Research and Development.
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