Julie L Wambaugh, PhD, CCC-SLP portrait
  • Professor, Communication Sciences & Disorders

Research Statement

My research has centered on development and evaluation of treatments for apraxia of speech (AOS) and aphasia. A secondary emphasis has concerned examination of the nature of AOS.  In particular, I have been interested in explicating variability associated with AOS. In addition to clarifying the nature of the disorder, the understanding of variability is crucial to the implementation and interpretation of single-subject experimental methods and thus, also relates to my treatment research. The treatments developed and tested in my laboratory are theory-driven. However, an overriding goal of my research program continues to be the development of clinically applicable treatments. 

Research Keywords

  • Treatment
  • Single-subject design
  • Apraxia of speech
  • Aphasia
  • Speech

Presentations

  • Wambaugh, J.L. (June, 2012). Management of motor speech disorders. Rehabiliation Institute of Chicago. Chicago, IL. Invited Talk/Keynote, Presented, 06/2102.
  • Kallhoff, L., Nessler, C., & Wambaugh, J. (May, 2019). Dosing of Sound Production Treatment for acquired apraxia of speech. Poster presentation at the annual Clinical Aphasiology Conference, Whitefish, MT. Conference Paper, Refereed, Presented, 06/01/2019.
  • Hula, W., Dickey, M.. Kendall, D., Wambaugh, J., Grzybowski, A., Irwin, W., St. Jacque, A., & Doyle, P. (May, 2019). Minimal clinically important difference score etimates for the Aphasia Communication Outcome Measure. Platform presentation at the annual Clinical Aphasiology Conference, Whitefish, MT. Conference Paper, Refereed, Presented, 05/31/2019.
  • Bunker, L., Mauszycki, S., Poss, E., Kahlloff, L., & Wambaugh, J. (May, 2019). Naming improvements with Phonological Components Analysis: Further examination. Poster presentation at the annual Clinical Aphasiology Conference, Whitefish, MT. Conference Paper, Refereed, Presented, 05/31/2019.
  • Bunker, L., Poss, E., Mauszycki, S., & Wambaugh, J. (November, 2018). Changes in word retrieval after Phonological Components Analysis: An experimentally controlled replication. Poster presentation at the annual American Speech-Language-Hearing Association Convention, Boston, MA. Conference Paper, Refereed, Presented, 11/2018.
  • Richards, L., & Wambaugh, J. (September, 2018). Issues and evidence in speech-language and upper extremity rehabilitation. Invited grand rounds presentation. Department of Neurology, University of Utah, Salt Lake City, UT. Invited Talk/Keynote, Presented, 09/2018.
  • DeLong, C., Bunker, L., & Wambaugh, J. (May, 2018). Word retrieval practice effects and memory. Poster presentation at the annual Clinical Aphasiology Conference, Austin, TX. Conference Paper, Refereed, Presented, 05/2018.
  • Bailey, D., Kean, J., Bunker, L., Berggren, K., Mauszycki, S., & Wambaugh, J. (May, 2018). Speech sound accuracy vs. comprehensive measures of speech breakdown in apraxia of speech. Poster presentation at the annunal Clinical Aphasiology Conference, Austin, TX. Conference Paper, Refereed, Presented, 05/2018.
  • Mauszycki, S., & Wambaugh, J. (May, 2018). Acquired apraxia of speech: Comparison of electropalatography treatment and Sound Production Treatment. Poster presentation at the annual Clinical Aphasiology Conference, Austin, TX. Conference Paper, Refereed, Presented, 05/2018.
  • Treatment of Acquired Apraxia of Speech. Invited one-day presentation at St. Luke's Regional Medical Center, Boise, ID. Invited Talk/Keynote, Presented, 03/2018.
  • Bunker, L., Bailey, D., Mauszcyki, S., & Wambaugh, J. (February, 2018). Correlation of Apraxia of Speech Rating Scale (ASRS) scores and intelligibility ratings. Poster presentation at the Conference on Motor Speech, Savannah, GA. Conference Paper, Refereed, Presented, 02/2018.
  • Wambaugh, J., Wright, S., Nessler, C., Boss, E., Mauszycki, S., Doyle, P., & Hula, W. (February, 2018). Effect of treatment intensity on outcomes of Sound Production Treatment for apraxia of speech. Platform presentation at the Conference on Motor Speech, Savannah, GA. Conference Paper, Refereed, Presented, 02/2018.
  • Mauszycki, S., Nessler, C., & Wambaugh, J. (February, 2018). Acquired apraxia of speech: Examining the relationship between treatment and generalization outcomes. Poster presentation at the Conference on Motor Speech, Savannah, GA. Conference Paper, Refereed, Presented, 02/2018.
  • Ballard, K., Wambaugh, J., Duffy, J., Layfield, C., Maas, E., Mauszycki, S., & Mcneil, M. (November, 2013). Updated treatment guidelines for acquired apraxia of speech: Systematic review of studies 2004-2012. Platform presentation at the annual American Speech-Language-Hearing Convention, Chicago, IL. Conference Paper, Refereed, Presented, 11/2014.
  • Ballard, K., Wambaugh, J., Duffy, J., Layfield, C., Maas, E., Mauszycki, S., & Mcneil, M. (November, 2013). Updated treatment guidelines for acquired apraxia of speech: Systematic review of studies 2004-2012. Platform presentation at the annual American Speech-Language-Hearing Convention, Chicago, IL. Conference Paper, Refereed, Presented, 11/2013.
  • Haley, K., Wambaugh, J., Duffy, J., & Fridriksson, J. (November, 2013). Current issues in apraxia of speech and progressive apraxia of speech. Motor Speech Disorders Special Session (Platform, Panel) at the annual ASHA Convention, Chicago, IL. Invited Talk/Keynote, Presented, 11/2013.
  • Wambaugh, J., Wright, S., Nessler, C., deLong, C., Mauszycki, S. & Eatchel, K. (November, 2013). Effects of a novel treatment for aphasia and acquired apraxia of speech. Poster presentation at the annual American Speech-Language-Hearing Association Convention, Chicago, IL. Poster, Presented, 11/2013.
  • Mauszycki, S., Eatchel, K., & Wambaugh, J. (November, 2013). Electropalatographic Measures of Stops in Speakers With & Without Apraxia of Speech. Poster presentation at the annual American Speech-Language-Hearing Association Convention, Chicago, IL. Poster, Presented, 11/2013.
  • Wambaugh, J.L. (October, 2013). Word-retrieval treatments for aphasia: Moving beyond object naming. Invited presentation at Braintree Rehabilitation Hospital, Cambridge, MA. Invited Talk/Keynote, Presented, 10/2013.
  • Wambaugh, J. L. (October, 2013). Current issues in the management of AOS. Invited presentation at Braintree Rehabilitation Hospital, Cambridge, MA. Invited Talk/Keynote, Presented, 10/2013.
  • Tompkins, C., Blake, M., Sharp, T., Meigh, K. & Wambaugh, J. (May, 2013). Platform presentation at the annual Clinical Aphasiology Conference. Tuscon, AZ. Conference Paper, Refereed, Presented, 05/2013.
  • Wambaugh, J.L., Nessler, C., Wright, S., & Mauszycki, S. (May, 2013). Sound Production Treatment: Effects of blocked and random practice. Platform presentation at the annual Clinical Aphasiology Conference. Tuscon, AZ. Conference Paper, Refereed, Presented, 05/2013.
  • Wambaugh, J. L. (May, 2013). Evidence-based approaches to the treatment of Acquired Apraxia of Speech. Invited workshop at the Frasier Rehab Institute, Louisville, Kentucky. Invited Talk/Keynote, Presented, 05/2013.
  • Wambaugh, J.L., Nessler, C., & Mauszycki, S. (February 2013). Melodic Intonation Therapy applied to the production of questions. Poster presentation at the semi annual International Neuropsychological Society meeting. Waikoloa, HI. Poster, Presented, 02/2013.
  • Wambaugh, J.L., Mauszycki, S., & Eachel, K. (February, 2013). Word retrieval in aphasia: Using treatment performance to predict probe performance. Poster presentation at the semi annual International Neuropsychological Society meeting. Waikoloa, HI. Poster, Presented, 02/2013.
  • Wambaugh, J. L. (October 2012). Management of acquired apraxia of speech: Evidence-based practice approaches. Invited workshop for Methodist Rehabilitation Center, Jackson, Mississippi. Invited Talk/Keynote, Presented, 10/2012.
  • Wambaugh, J. L. (September 2012). Managing acquired apraxia of speech. Invited workshop at VA Salt Lake City Health Care Center. Presentation, Presented, 09/2012.
  • Wambaugh, J. L. (September 2012). Word-retrieval treatments for aphasia. Invited workshop at VA Salt Lake City Health Care Center. Presentation, Presented, 09/2012.
  • Wambaugh, J.L. (June, 2012). Management of motor speech disorders. Rehabiliation Institute of Chicago. Chicago, IL. Invited Talk/Keynote, Presented, 06/2012.
  • Doyle, P.,Hula, W., Hula, S., Stone, C., Ross, K., Wambaugh, J., Schumacher, J., & Roehrig, A. (May, 2012). The Aphasia Communication Outcome Measure: Item reduction, scaling, and concurrent validity of self-reported communicative functioning in aphasia. Platform presentation at the annual Clinical Aphasiology Conference, Lake Tahoe, . Conference Paper, Presented, 05/2012.
  • Wambaugh, J., Nessler, C., Wright, S., Mauszycki, S., & Cameron, R. (May, 2012). Application of Response Elaboration Training to procedural discourse. Platform presentation at the annual Clinical Aphasiology Conference, Lake Tahoe, CA. Conference Paper, Presented, 05/2012.
  • Wambaugh, J., Nessler, C., Cameron, R., Mauszycki, S., & Wright, S. (May, 2012) Maximizing generalization effects of semantic feature analysis. Platform presentation at the annual Clinical Aphasiology Conference, Lake Tahoe, CA. Conference Paper, Presented, 05/2012.
  • Tompkins, C.A., Scharp, V.L., Meigh, K.M., Lehman Blake, M., & Wambaugh, J. (2012). Generalization of a novel, implicit treatment for coarse coding deficit. Poster presentation at the annual Clinical Aphasiology Conference, Lake Tahoe, CA. Poster, Presented, 05/2012.
  • Mauszycki, S., Wambaugh, J., & Cameron, R. (May, 2012). Apraxia of speech: Perceptual analysis of mono-, bi-, and trisyllabic words across repeated sampling occasions. Poster presentation at the annual Clinical Aphasiology Conference, Lake Tahoe, CA. Poster, Presented, 05/2012.
  • Wambaugh, J.L. (April 2012). Best practice and new developments in the treatment of acquired apraxia of speech. Invited platform presentation at ASHA Healthcare and Business Institute 2012. Memphis, TN. Invited Talk/Keynote, Presented, 04/2012.
  • Wambaugh, J.L. (April, 2012). Clinical application of new developments in AOS treatment. Invited platform presentation at ASHA Healthcare and Business Institute 2012. Memphis, TN. Invited Talk/Keynote, Presented, 04/2012.
  • Wambaugh, J.L., Nessler, C., Cameron, R., & Mauszycki, S. (March, 2012). Treatment for acquired apraxia of speech: Examination of treatment intensity and practice schedule. Platform presentation at the biennial Conference on Motor Speech, Santa Rosa, CA. Conference Paper, Presented, 03/2012.
  • Wambaugh, J.L., Nessler, C., Cameron, R., & Mauszycki, S. (March, 2012). Stimulus Generalization Effects of Treatment for Acquired Apraxia of Speech. Poster presentation at the biennial Conference on Motor Speech, Santa Rosa, CA. Poster, Presented, 03/2012.
  • Mauszycki, S., Dromey, C., & Wambaugh, J. (March, 2012). Electropalatographic measures of stop consonants in speakers with and without apraxia of speech on repeated sampling occasions. Poster presentation at the biennial Conference on Motor Speech, Santa Rosa, CA. Poster, Presented, 03/2012.
  • Wambaugh, J.L., Cameron, R., Mauszycki, S., Nessler, C., & Wright, S. (November, 2011). Word retrieval treatment for aphasia: Facilitation of generalization. Poster presentation at the annunal American Speech-Language-Hearing Association Convention. San Diego, CA. Conference Paper, Refereed, Presented, 11/2011.
  • Wambaugh, J.L., Nessler, C., Cameron, R., & Mauszycki, S. (November, 2011). Treatment for acquired apraxia of speech: Blocked and random practice. Poster presentation at the annunal American Speech-Language-Hearing Association Convention. San Diego, CA. Conference Paper, Refereed, Presented, 11/2011.
  • Wambaugh, J., Cameron, R., Nessler, C., & Mauszycki, S. (June, 2011). Effects of repetition and rate/rhythm treatments for acquired apraxia of speech. Poster presentation at the annual Clinical Aphasiology Conference, Ft. Lauderdale, Florida. Conference Paper, Refereed, Other, 06/2011.
  • Wilkinson, L., Wambaugh, J., & Nessler, C. (June, 2011).Application of Melodic Intonation Therapy using linguistic principles: Acquisition and generalization effects. Poster presentation at the annual Clinical Aphasiology Conference, Ft. Lauderdale, Florida. Conference Paper, Refereed, Presented, 06/2011.
  • Mauscycki, S., Wambaugh, J. & Cameron, R.M. (June, 2011). Apraxia of speech: Perceptual analysis of trisyllabic words across repeated sampling occasions. Poster presentation at the annual Clinical Aphasiology Conference, Ft. Lauderdale, Florida. Conference Paper, Refereed, Presented, 06/01/2011.
  • Wambaugh, J.L. (November, 2010). Acquired apraxia of speech: Updates and current issues. Invited platform presentation at the annual scientific meeting of the Academy of Neurologic Communication Disorders and Sciences. Philadelphia, PA. Presentation, Other, 11/2010.
  • Wambaugh, J.L. (October, 2010). Current issues in acquired apraxia of speech. Invited platform presentation. University of Western Ontario, School of Communication Sciences and Disorders, 40th Anniversery Conference, London, Ontario. Presentation, Other, 10/2010.
  • Wambaugh, J., Cameron, R., Nessler, C., & Mauszycki, S. (2010). Treatment of acquired apraxia of speech. Platform presentation at the biennial Conference on Motor Speech. Savannah, GA. Presentation, Other, 07/2010.

Research Groups

  • Dallin Bailey, Graduate Student. CSD. 08/2013 - 06/2016.
  • Kelly Eatchel, Undergraduate Student. Psychology. 09/2012 - 09/2014. Awards/Scholarships/Stipends: supported by VA RR&D grant.
  • Catharine DeLong, Graduate Student. CSD. 08/2012 - 05/2015. Awards/Scholarships/Stipends: supported by VA RR&D Grant.
  • Syndey Fredrickson, Graduate Student. CSD. 08/2012 - 05/2014.
  • Shannon Mauszycki, Ph.D., Postdoc. 05/2006 - 12/2016. Awards/Scholarships/Stipends: VA Career Development Award II.
  • Sandra Wright, Senior Associate. VA. 09/2005 - 09/2015.
  • Christina Nessler, Senior Associate. 09/2004 - 09/2015.
  • Jared Bennett, Graduate Student. CSD. 09/2004 - 02/2014.

Languages

  • English, fluent.

Publications

  • Wambaugh JL, Wright S, Nessler C, Mauszycki SC, Bunker L, Boss E, Zhang Y, Hula WD & Doyle PJ (2020). Further Study of the Effects of Treatment Intensity on Outcomes of Sound Production Treatment for Acquired Apraxia of Speech: Does Dose Frequency Matter?. American journal of speech-language pathology. Vol. 29, 263-285. Published, 02/01/2020.
  • Bailey DJ, Nessler C, Berggren KN & Wambaugh JL (2020). An Aphasia Treatment for Verbs With Low Concreteness: A Pilot Study. American journal of speech-language pathology. Vol. 29, 299-318. Published, 02/01/2020.
  • Mauszycki SC & Wambaugh JL (2020). Acquired Apraxia of Speech: Comparison of Electropalatography Treatment and Sound Production Treatment. American journal of speech-language pathology. Vol. 29, 511-529. Published, 02/01/2020.
  • Bailey DJ, Bunker L, Mauszycki S & Wambaugh JL (2020). Reliability and stability of the metrical stress effect on segmental production accuracy in persons with apraxia of speech. International journal of language & communication disorders. Vol. 54, 902-913. Published, 01/01/2020.
  • Wambaugh JL, Bailey DJ, Mauszycki SC & Bunker LD (2019). Interrater Reliability and Concurrent Validity for the Apraxia of Speech Rating Scale 3.0: Application With Persons With Acquired Apraxia of Speech and Aphasia. American journal of speech-language pathology. Vol. 28, 895-904. Published, 12/01/2019.
  • Bunker LD, Nessler C & Wambaugh JL (2019). Effect Size Benchmarks for Response Elaboration Training: A Meta-Analysis. American journal of speech-language pathology. Vol. 28, 247-258. Published, 12/01/2019.
  • Haley KL, Smith M & Wambaugh JL (2019). Sound Distortion Errors in Aphasia With Apraxia of Speech. American journal of speech-language pathology. Vol. 28, 121-135. Published, 11/01/2019.
  • Wambaugh JL, Wright S, Boss E, Mauszycki SC, DeLong C, Hula W & Doyle PJ (2019). Effects of Treatment Intensity on Outcomes in Acquired Apraxia of Speech. American journal of speech-language pathology. Vol. 27, 306-322. Published, 10/01/2019.
  • Bunker LD, Wright S & Wambaugh JL (2019). Language Changes Following Combined Aphasia and Apraxia of Speech Treatment. American journal of speech-language pathology. Vol. 27, 323-335. Published, 10/01/2019.
  • Wambaugh JL, Wright S, Mauszycki SC, Nessler C & Bailey D (2019). Combined aphasia and apraxia of speech treatment (CAAST): Systematic replications in the development of a novel treatment. International journal of speech-language pathology. Vol. 20, 247-261. Published, 04/01/2019.
  • Wambaugh, J.L. (2018). Apraxia of speech. In J. Kreutzer, DeLuca, J., & D. Caplan (Eds). Encyclopedia of Clinical Neuropsychology. New York: Springer. 10.1007/978-3-319-56782-2_862-3. Published, 11/2018.
  • Wambaugh JL, Wright S, Mauszycki SC, Nessler C & Bailey D (2018). Combined aphasia and apraxia of speech treatment (CAAST): Systematic replications in the development of a novel treatment. International journal of speech-language pathology. Vol. 20, 247-261. Published, 11/01/2018.
  • Wambaugh JL, Wright S, Boss E, Mauszycki SC, DeLong C, Hula W & Doyle PJ (2018). Effects of Treatment Intensity on Outcomes in Acquired Apraxia of Speech. American journal of speech-language pathology. Vol. 27, 306-322. Published, 08/01/2018.
  • Bunker LD, Wright S & Wambaugh JL (2018). Language Changes Following Combined Aphasia and Apraxia of Speech Treatment. American journal of speech-language pathology. Vol. 27, 323-335. Published, 08/01/2018.
  • Wambaugh, J.L., Mauszycki, S., & Wright, S. (2013). Semantic Feature Analysis: Application to retrieval of action names. Aphasiology. Published, 12/2013.
  • Wambaugh, J. Mauszycki, S., & Ballard, K. (2013). Advances in the treatment of apraxia of speech. Perspectives on Neurophysiology and Neurogenic Communication Disorders, 23 (3) 112-119. . Published, 11/2013.
  • Wambaugh, J.L., Nessler, C., & Wright, S. (2013) Application of Response Elaboration Training to procedural discourse. American Journal of Speech-Language Pathology, 22, s409-425.. Published, 05/2013.
  • Wambaugh, J.L., Mauszycki, S., Cameron, R., Wright, S., & Nessler, C. (2013). Semantic Feature Analysis: Incorporating typicality treatment and mediating strategy training to promote generalization. American Journal of Speech-Language Pathology, 22, s334-369. Published, 05/2013.
  • Doyle, P. J., Hula, W. D., Austermann Hula, S. N., Stone, S. A., Wambaugh, J. L., Ross, K. B., & Schumacher, J.G. (2013). Self- and surrogate-reported communication functioning in aphasia. Quality of Life Research, 22(5), 957-067. Published, 04/2013.
  • Mauszycki, S.C., Wambaugh, J.L, & Dromey, C. (2013). Electropalatographic measures of stop consonants in speakers with and without apraxia of speech on repeated sampling occasions. Journal of Medical Speech-Language Pathology. Published, 03/2013.
  • Wambaugh, J.L., Nessler, C., Cameron, R., & Mauszycki, R. (2013). Treatment for acquired apraxia of speech: Examination of treatment intensity and practice schedule. American Journal of Speech Language Pathology, 22, 84-102. Published, 02/2013.
  • Wambaugh, J.L., Wright, S., & Nessler, C. (2012). Modified response elaboration training: A systematic extension with replications. Aphasiology, 26(12), 1407-1439. Published, 12/2012.
  • Miller, N., & Wambaugh, J.L. (2013). Apraxia of speech. In P. Coppens and I. Papathanasiou (Eds.) Aphasia and related neurogenic communication disorders. Jones and Bartlett. Published, 10/2012.
  • Mauszycki, S., & Wambaugh, J.L. (April, 2011). Acquired apraxia of speech: A treatment overview. ASHA Leader feature article. Published, 05/30/2011.
  • Wambaugh, J.L. (2011). Acquired apraxia of speech. In J. Kreutzer, DeLuca, J., & D. Caplan (Eds). Encyclopedia of Clinical Neuropsychology. New York: Springer. Published, 01/30/2011.