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Acquired Apraxia of Speech: The Effects of Repeated Practice and Rate/Rhythm Control Treatments on Sound Production Accuracy

Wambaugh, Julie L. and Nessler, Christina and Cameron, Rosalea and Mauszycki, Shannon C.
Acquired Apraxia of Speech: The Effects of Repeated Practice and Rate/Rhythm Control Treatments on Sound Production Accuracy. American Journal of Speech-Language Pathology (AJSLP), 21(Suppl.), May, 2012, pages S5-S27.

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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.

EPrint Type:Journal (Paginated)
Keywords:apraxia, treatment, articulation
ID Code:2330
Conference:Clinical Aphasiology Conference: Clinical Aphasiology Conference (2011 : 41st : Fort Lauderdale, FL : May 31-June 4, 2011)
Publisher:American Speech-Language-Hearing Association
Publication:American Journal of Speech-Language Pathology (AJSLP)
Alternative Locations:
DOI or Unique Handle:10.1044/1058-0360(2011/11-0102)
Additional Information:This article is based on a paper originally presented at the CAC2011 Conference. Permission to view the full-text article is subject to the publisher's access restrictions.

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