Acquired Apraxia of Speech: The Effects of Repeated Practice and Rate/Rhythm Control Treatments on Sound Production Accuracy Purpose: This investigation was designed to elucidate the effects of repeated practice treatment on sound production accuracy in individuals with apraxia of speech (AOS) and aphasia. A secondary purpose was to determine if the addition of rate/rhythm control to treatment provided further benefits beyond those achieved with repeated practice.Method: ... Supplement: Select Papers From the 41st Clinical Aphasiology Conference
Supplement: Select Papers From the 41st Clinical Aphasiology Conference  |   May 2012
Acquired Apraxia of Speech: The Effects of Repeated Practice and Rate/Rhythm Control Treatments on Sound Production Accuracy
 
Author Affiliations & Notes
  • Julie L. Wambaugh
    VA Salt Lake City Health Care System, UT
    VA Salt Lake City Health Care System, UT
  • Christina Nessler
    VA Salt Lake City Health Care System, UT
    VA Salt Lake City Health Care System, UT
  • Rosalea Cameron
    VA Salt Lake City Health Care System, UT
    VA Salt Lake City Health Care System, UT
  • Shannon C. Mauszycki
    VA Salt Lake City Health Care System, UT
    VA Salt Lake City Health Care System, UT
  • © 2012 American Speech-Language-Hearing Association
  • Associate Editor: Diane Kendall
    Associate Editor: Diane Kendall×
  • Editor: Swathi Kiran
    Editor: Swathi Kiran×
  • Correspondence to Julie Wambaugh: Julie.wambaugh@health.utah.edu
Article Information
Speech, Voice & Prosodic Disorders / Apraxia of Speech & Childhood Apraxia of Speech
Supplement: Select Papers From the 41st Clinical Aphasiology Conference   |   May 2012
Acquired Apraxia of Speech: The Effects of Repeated Practice and Rate/Rhythm Control Treatments on Sound Production Accuracy
American Journal of Speech-Language Pathology, May 2012, Vol. 21, S5-S27. doi:10.1044/1058-0360(2011/11-0102)
History: Received August 15, 2011 , Accepted November 16, 2011
 
American Journal of Speech-Language Pathology, May 2012, Vol. 21, S5-S27. doi:10.1044/1058-0360(2011/11-0102)
History: Received August 15, 2011; Accepted November 16, 2011
Web of Science® Times Cited: 1

Purpose: This investigation was designed to elucidate the effects of repeated practice treatment on sound production accuracy in individuals with apraxia of speech (AOS) and aphasia. A secondary purpose was to determine if the addition of rate/rhythm control to treatment provided further benefits beyond those achieved with repeated practice.

Method: A single-subject design was employed with 10 speakers with chronic AOS and aphasia. Articulation accuracy served as the dependent measure. Participants received repeated practice treatment until a plateau in performance was observed or high levels of accuracy were achieved. If performance criterion was not reached, rate/rhythm control was added to the treatment to determine if additional gains would be made.

Results: For 8 of the participants, improvements were evident for all applications of repeated practice treatment, and positive response generalization was observed in most cases. When rate/rhythm control treatment was applied, modest additional gains were apparent for the majority of the applications. The 2 participants who did not benefit from repeated practice treatment also did not show improvements with rate/rhythm control treatment.

Conclusions: Repeated practice treatment resulted in improved articulation for the majority of participants. The amount of improvement varied within and across participants. Rate/rhythm control appeared to have limited additional benefits for some participants.

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