Sound Production Treatment: Effects of Blocked and Random Practice Purpose This investigation was designed to further the development of a treatment for acquired apraxia of speech (AOS), Sound Production Treatment (SPT), by examining the effects of blocked and random practice. Method A multiple-baseline design across participants and behaviors was used with 6 speakers with chronic AOS and ... Supplement Article
Supplement Article  |   May 01, 2014
Sound Production Treatment: Effects of Blocked and Random Practice
 
Author Affiliations & Notes
  • Julie L. Wambaugh
    VA Salt Lake City Health Care System, Utah
    University of Utah, Salt Lake City
  • Christina Nessler
    VA Salt Lake City Health Care System, Utah
  • Sandra Wright
    VA Salt Lake City Health Care System, Utah
  • Shannon C. Mauszycki
    VA Salt Lake City Health Care System, Utah
    University of Utah, Salt Lake City
  • 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 L. Wambaugh: julie.wambaugh@health.utah.edu
  • Editor: Swathi Kiran
    Editor: Swathi Kiran×
  • Associate Editor: Ken Bleile
    Associate Editor: Ken Bleile×
Article Information
Speech, Voice & Prosodic Disorders / Apraxia of Speech & Childhood Apraxia of Speech / Research Issues, Methods & Evidence-Based Practice / Speech, Voice & Prosody / Supplement: Select Papers From the 43rd Clinical Aphasiology Conference
Supplement Article   |   May 01, 2014
Sound Production Treatment: Effects of Blocked and Random Practice
American Journal of Speech-Language Pathology, May 2014, Vol. 23, S225-S245. doi:10.1044/2014_AJSLP-13-0072
History: Received July 22, 2013 , Revised October 10, 2013 , Accepted November 14, 2013
 
American Journal of Speech-Language Pathology, May 2014, Vol. 23, S225-S245. doi:10.1044/2014_AJSLP-13-0072
History: Received July 22, 2013; Revised October 10, 2013; Accepted November 14, 2013
Web of Science® Times Cited: 6

Purpose This investigation was designed to further the development of a treatment for acquired apraxia of speech (AOS), Sound Production Treatment (SPT), by examining the effects of blocked and random practice.

Method A multiple-baseline design across participants and behaviors was used with 6 speakers with chronic AOS and aphasia. Accuracy of production of target sounds in treated and untreated words produced in probe sessions served as the primary dependent variable. Stimulus generalization was also measured to phrase production and sentence completion. Participants received SPT applied with blocked presentation of treatment words (SPT-blocked) and SPT applied with random presentation of treatment words (SPT-random).

Results Increases in accuracy of articulation of target sounds in treated words were observed for all participants for both conditions of treatment. SPT-random appeared to be associated with better maintenance for 2 participants. Generalization to untreated words was positive for all participants for SPT-random and SPT-blocked. Stimulus generalization effects varied across participants and measurement conditions; patterns of generalization did not appear to be associated with treatment condition.

Conclusions There may be an advantage for SPT-random for some speakers with AOS. Findings from the nonspeech motor learning literature may not translate directly to the treatment of AOS.

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