Combined Aphasia and Apraxia of Speech Treatment (CAAST): Effects of a Novel Therapy Purpose This investigation was designed to examine the effects of a newly developed treatment for aphasia and acquired apraxia of speech (AOS). Combined Aphasia and Apraxia of Speech Treatment (CAAST) targets language and speech production simultaneously, with treatment techniques derived from Response Elaboration Training (Kearns, 1985) and Sound Production Treatment ... Research Article
Research Article  |   December 01, 2014
Combined Aphasia and Apraxia of Speech Treatment (CAAST): Effects of a Novel Therapy
 
Author Affiliations & Notes
  • Julie L. Wambaugh
    Veterans Affairs Salt Lake City Health Care System, Utah
    University of Utah, Salt Lake City
  • Sandra Wright
    Veterans Affairs Salt Lake City Health Care System, Utah
  • Christina Nessler
    Veterans Affairs Salt Lake City Health Care System, Utah
  • Shannon C. Mauszycki
    Veterans Affairs 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: wambaugh@health.utah.edu
  • Editor: Rhea Paul
    Editor: Rhea Paul×
  • Associate Editor: Kristine Lundgren
    Associate Editor: Kristine Lundgren×
Article Information
Speech, Voice & Prosodic Disorders / Apraxia of Speech & Childhood Apraxia of Speech / Language Disorders / Aphasia / Language / Research Articles
Research Article   |   December 01, 2014
Combined Aphasia and Apraxia of Speech Treatment (CAAST): Effects of a Novel Therapy
Journal of Speech, Language, and Hearing Research, December 2014, Vol. 57, 2191-2207. doi:10.1044/2014_JSLHR-L-14-0004
History: Received January 7, 2014 , Revised May 1, 2014 , Accepted June 20, 2014
 
Journal of Speech, Language, and Hearing Research, December 2014, Vol. 57, 2191-2207. doi:10.1044/2014_JSLHR-L-14-0004
History: Received January 7, 2014; Revised May 1, 2014; Accepted June 20, 2014
Web of Science® Times Cited: 4

Purpose This investigation was designed to examine the effects of a newly developed treatment for aphasia and acquired apraxia of speech (AOS). Combined Aphasia and Apraxia of Speech Treatment (CAAST) targets language and speech production simultaneously, with treatment techniques derived from Response Elaboration Training (Kearns, 1985) and Sound Production Treatment (Wambaugh, Kalinyak-Fliszar, West, & Doyle, 1998). The purpose of this study was to determine whether CAAST was associated with positive changes in verbal language and speech production with speakers with aphasia and AOS.

Method Four participants with chronic aphasia and AOS received CAAST applied sequentially to sets of pictures in the context of multiple baseline designs. CAAST entailed elaboration of participant-initiated utterances, with sound production training applied as needed to the elaborated productions. The dependent variables were (a) production of correct information units (CIUs; Nicholas & Brookshire, 1993) in response to experimental picture stimuli, (b) percentage of consonants correct in sentence repetition, and (c) speech intelligibility.

Results and Conclusions CAAST was associated with increased CIU production in trained and untrained picture sets for all participants. Gains in sound production accuracy and speech intelligibility varied across participants; a modification of CAAST to provide additional speech production treatment may be desirable.

Acknowledgments
This research was supported by the Department of Veterans Affairs, Rehabilitation Research and Development. Thanks are extended to Catharine DeLong for her assistance with this project.
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