Special Issues Showcase More Than 40 Articles on Motor Speech

The biennial Conference on Motor Speech, held in February 2020, had an interdisciplinary focus, drawing speech scientists, clinicians, engineers, and physicians to share the latest research on motor speech disorders.

As in previous years, we’ve put together two complementary special issues of the American Journal of Speech-Language Pathology (AJSLP) and the Journal of Speech, Language, and Hearing Research (JSLHR) highlighting some of the research from this conference.

Jessica Huber and Cara Stepp, co-chairs of the conference, served as guest editors for the special issues of AJSLP and JSLHR, respectively. As with previous special issues from the motor speech conference, both issues cover the same general topic of motor speech, with JSLHR authors focusing on translational science and AJSLP authors focusing on applied science.

Huber and Stepp emphasized that their goal in working on this special issue was to make the research from the Conference on Motor Speech available to readers who can use the information immediately. “We really want to get the work of the motor speech community out to clinicians in a way that’s accessible to them,” Huber said.

We asked each editor to highlight an article in their particular special issue. Huber highlighted an article by Britton et al. looking at noninvasive mouthpiece ventilation in people with muscular dystrophy. “I don’t think there’s another paper on this topic—period,” she said. Meanwhile, Stepp highlighted the article by Levy and colleagues about a clinical trial for children with dysarthria receiving child-friendly dual-focus therapy during a summer camp.

Both special issues offer a lifespan perspective that ranges from children to adults—as well as across multiple languages. In fact, Huber and Stepp each recommended looking at both special issues in order to see the full picture of the state of the art in motor speech research.

We hope that you enjoy these two special issues from AJSLP and JSLHR. You can read the AJSLP special issue here and the JSLHR special issue here, or explore the individual articles below! Watch the video below to see Huber and Stepp talk more about these special issues.

Explore the Special Issues

Allison, K. M., Russell, M., & Hustad, K. C. (2021). Reliability of perceptual judgments of phonetic accuracy and hypernasality among speech-language pathologists for children with dysarthria. American Journal of Speech-Language Pathology, 30(3S), 1558–1571. https://doi.org/10.1044/2020_AJSLP-20-00144

Beiting, M., & Maas, E. (2021). Autism-Centered Therapy for Childhood Apraxia of Speech (ACT4CAS): A single-case experimental design study. American Journal of Speech-Language Pathology, 30(3S), 1525–1541. https://doi.org/10.1044/2020_AJSLP-20-00131

Boley, N., Patil, S., Garnett, E. O., Li, H., Chugani, D. C., Chang, S.-E., & Chow, H. M. (2021). Association between gray matter volume variations and energy utilization in the brain: Implications for developmental stuttering. Journal of Speech, Language, and Hearing Research, 64(6S), 2317–2324. https://doi.org/10.1044/2020_JSLHR-20-00325

Bouvier, L., Monetta, L., Vitali, P., Laforce, R., & Martel-Sauvageau, V. (2021). A preliminary look into the clinical evolution of motor speech characteristics in primary progressive apraxia of speech in Québec French. American Journal of Speech-Language Pathology, 30(3S), 1459–1476. https://doi.org/10.1044/2020_AJSLP-20-00162

Britton, D., Pullen, E., Hoit, J. D., & Benditt, J. O. (2021). Effects of mouthpiece noninvasive ventilation on speech in men with muscular dystrophy: A pilot study. American Journal of Speech-Language Pathology, 30(3S), 1373–1381. https://doi.org/10.1044/2020_AJSLP-20-00146

Case, J., & Grigos, M. I. (2021). The effect of practice on variability in childhood apraxia of speech: A multidimensional analysis. American Journal of Speech-Language Pathology, 30(3S), 1477–1495. https://doi.org/10.1044/2021_AJSLP-20-00167

Chenausky, K. V., Brignell, A., Morgan, A. T., Norton, A. C.,Tager-Flusberg, H. B., Schlaug, G., & Guenther, F. H. (2021). A modeling-guided case study of disordered speech in minimally verbal children with autism spectrum disorder. American Journal of Speech-Language Pathology, 30(3S), 1542–1557. https://doi.org/10.1044/2021_AJSLP-20-00121

Cheng, H.-S., & Buchwald, A. (2021). Does voicing affect patterns of transfer in nonnative cluster learning? Journal of Speech, Language, and Hearing Research, 64(6S), 2103–2020. https://doi.org/10.1044/2021_JSLHR-20-00240

Clark, H. M., Utianski, R. L., Ali, F., Botha, H., Whitwell, J. L., & Josephs, K. A. (2021). Motor speech disorders and communication limitations in progressive supranuclear palsy. American Journal of Speech-Language Pathology, 30(3S), 1361–1372. https://doi.org/10.1044/2020_AJSLP-20-00126

Cleland, J., & Scobbie, J. M. (2021). The dorsal differentiation of velar from alveolar stops in typically developing children and children with persistent velar fronting. Journal of Speech, Language, and Hearing Research, 64(6S), 2347–2362. https://doi.org/10.1044/2020_JSLHR-20-00373

Coughler, C., Hamel, E. M., Cardy, J. O., Archibald, L. M. D., & Purcell, D. W. (2021). Compensation to altered auditory feedback in children with developmental language disorder and typical development. Journal of Speech, Language, and Hearing Research, 64(6S), 2363–2376. https://doi.org/10.1044/2020_JSLHR-20-00374

Darling-White, M., & Banks, S. W. (2021). Speech rate varies with sentence length in typically developing children. Journal of Speech, Language, and Hearing Research, 64(6S), 2385–2391. https://doi.org/10.1044/2020_JSLHR-20-00276

De Nil, L., Isabella, S., Jobst, C., Kwon, S., Mollaei, F., & Cheyne, D. (2021). Complexity-dependent modulations of beta oscillations for verbal and nonverbal movements. Journal of Speech, Language, and Hearing Research, 64(6S), 2248–2260. https://doi.org/10.1044/2021_JSLHR-20-00275

Eadie, T. L., Durr, H., Sauder, C., Nagle, K., Kapsner-Smith, M., & Spencer, K. A. (2021). Effect of noise on speech intelligibility and perceived listening effort in head and neck cancer. American Journal of Speech-Language Pathology, 30(3S), 1329–1342. https://doi.org/10.1044/2020_AJSLP-20-00149

Fletcher, A., & McAuliffe, M. (2021). Comparing lexical cues in listener processing of dysarthria and speech in noise. American Journal of Speech-Language Pathology, 30(3S), 1572–1579. https://doi.org/10.1044/2020_AJSLP-20-00137

Frankford, S. A., Heller Murray, E. S., Masapollo, M., Cai, S., Tourville, J. A., Nieto-Castañón, A., & Guenther, F. H. (2021). The neural circuitry underlying the “rhythm effect” in stuttering. Journal of Speech, Language, and Hearing Research, 64(6S), 2325–2346. https://doi.org/10.1044/2021_JSLHR-20-00328

Glotfelty, A., & Katz, W. F. (2021). The role of visibility in silent speech tongue movements: A kinematic study of consonants. Journal of Speech, Language, and Hearing Research, 64(6S), 2377–2384. https://doi.org/10.1044/2021_JSLHR-20-00266

Jin, J. L., Baylor, C., & Yorkston, K. (2021). Predicting communicative participation in adults across communication disorders. American Journal of Speech-Language Pathology, 30(3S), 1301–1313. https://doi.org/10.1044/2020_AJSLP-20-00100

Kidwai, J., Brumberg, J. S., & Marsh, B. M. (2021). A neural marker of speech intention: Evidence from contingent negative variation. Journal of Speech, Language, and Hearing Research, 64(6S), 2392–2399. https://doi.org/10.1044/2020_JSLHR-20-00277

Kim, D., Kuruvilla-Dugdale, M., de Riesthal, M., Jones, R., Bagnato, F., & Mefferd, A. (2021). Articulatory correlates of stress pattern disturbances in talkers with dysarthria. Journal of Speech, Language, and Hearing Research, 64(6S), 2287–2300. https://doi.org/10.1044/2021_JSLHR-20-00299

Lehner, K., & Ziegler, W. (2021). The impact of lexical and articulatory factors in the automatic selection of test materials for a web-based assessment of intelligibility in dysarthria. Journal of Speech, Language, and Hearing Research, 64(6S), 2196–2212. https://doi.org/10.1044/2020_JSLHR-20-00267

Levy, E. S., Chang, Y. M., Hwang, K. H., & McAuliffe, M. J. (2021). Perceptual and acoustic effects of dual-focus speech treatment in children with dysarthria. Journal of Speech, Language, and Hearing Research, 64(6S), 2301–2316. https://doi.org/10.1044/2020_JSLHR-20-00301

Mahr, T. J., Berisha, V., Kawabata, K., Liss, J., & Hustad, K. C. (2021). Performance of forced-alignment algorithms on children’s speech. Journal of Speech, Language, and Hearing Research, 64(6S), 2213–2222. https://doi.org/10.1044/2020_JSLHR-20-00268

Martel-Sauvageau, V., Breton, M., Chabot, A., & Langlois, M. (2021). The impact of clear speech on the perceptual and acoustic properties of fricative–vowel sequences in speakers with dysarthria. American Journal of Speech-Language Pathology, 30(3S), 1410–1428. https://doi.org/10.1044/2021_AJSLP-20-00157

Moya-Galé, G., Keller, B., Escorial, S., & Levy, E. S. (2021). Speech treatment effects on narrative intelligibility in French-speaking children with dysarthria. Journal of Speech, Language, and Hearing Research, 64(6S), 2154–2168. https://doi.org/10.1044/2020_JSLHR-20-00258

Nealon, K. C., & Edmonds, L. A. (2021). Effects of verb network strengthening treatment on sound-level and speech production errors in individuals with aphasia and acquired apraxia of speech. American Journal of Speech-Language Pathology, 30(3S), 1446–1458. https://doi.org/10.1044/2021_AJSLP-20-00141

Niziolek, C. A., & Parrell, B. (2021). Responses to auditory feedback manipulations in speech may be affected by previous exposure to auditory errors. Journal of Speech, Language, and Hearing Research, 64(6S), 2169–2181. https://doi.org/10.1044/2020_JSLHR-20-00263

Page, A. D., Elhayek, N., Baylor, C., Adams, S., Jog, M., & Yorkston, K. (2021). Exploring the psychosocial impact of botulinum toxin type A injections for individuals with oromandibular dystonia: A qualitative study of patients’ experiences. American Journal of Speech-Language Pathology, 30(3S), 1314–1328. https://doi.org/10.1044/2020_AJSLP-20-00124

Parrell, B., Ivry, R. B., Nagarajan, S. S., & Houde, J. F. (2021). Intact correction for self-produced vowel formant variability in individuals with cerebellar ataxia regardless of auditory feedback availability. Journal of Speech, Language, and Hearing Research, 64(6S), 2234–2247. https://doi.org/10.1044/2021_JSLHR-20-00270

Preston, J. L., Benway, N. R., Leece, M. C., & Caballero, N. F. (2021). Concurrent validity between two sound sequencing tasks used to identify childhood apraxia of speech in school-age children. American Journal of Speech-Language Pathology, 30(3S), 1580–1588. https://doi.org/10.1044/2020_AJSLP-20-00108

Rong, P., & Heidrick, L. (2021). Spatiotemporal control of articulation during speech and speechlike tasks in amyotrophic lateral sclerosis. American Journal of Speech-Language Pathology, 30(3S), 1382–1399. https://doi.org/10.1044/2020_AJSLP-20-00136

Sandström, L., Schalling, E., Karlsson, F., Blomstedt, P., & Hartelius, L. (2021). Speech function following deep brain stimulation of the caudal zona incerta: Effects of habitual and high-amplitude stimulation. Journal of Speech, Language, and Hearing Research, 64(6S), 2121–2133. https://doi.org/10.1044/2020_JSLHR-20-00256

Scarcella, I., Michelazzo, L., & McCabe, P. (2021). A pilot single-case experimental design study of rapid syllable transition treatment for Italian children with childhood apraxia of speech. American Journal of Speech-Language Pathology, 30(3S), 1496–1510. https://doi.org/10.1044/2021_AJSLP-20-00133

Senthinathan, A., Adams, S., Page, A. D., & Jog, M. (2021). Speech intensity response to altered intensity feedback in individuals with Parkinson’s disease. Journal of Speech, Language, and Hearing Research, 64(6S), 2261–2275. https://doi.org/10.1044/2021_JSLHR-20-00278

Solomon, N. P., Brungart, D. S., Wince, J. R., Abramowitz, J. C., Eitel, M. M., Cohen, J., Lippa, S. M., Brickell, T. A., French, L. M., & Lange, R. T. (2021). Syllabic diadochokinesis in adults with and without traumatic brain injury: Severity, stability, and speech considerations. American Journal of Speech-Language Pathology, 30(3S), 1400–1409. https://doi.org/10.1044/2020_AJSLP-20-00158

Spencer, C., Vannest, J., Maas, E.,. Preston, J. L., Redle, E., Maloney, T., & Boyce, S. (2021). Neuroimaging of the syllable repetition task in children with residual speech sound disorder. Journal of Speech, Language, and Hearing Research, 64(6S), 2223–2233. https://doi.org/10.1044/2020_JSLHR-20-00269

van Brenk, F., Kain, A., & Tjaden, K. (2021). Investigating acoustic correlates of intelligibility gains and losses during slowed speech: A hybridization approach. American Journal of Speech-Language Pathology, 30(3S), 1343–1360. https://doi.org/10.1044/2021_AJSLP-20-00172

Vitti, E., Mauszycki, S., Bunker, L., & Wambaugh, J. (2021). Stability of speech intelligibility measures over repeated sampling times in speakers with acquired apraxia of speech. American Journal of Speech-Language Pathology, 30(3S), 1429–1445. https://doi.org/10.1044/2020_AJSLP-20-00135

Vojtech, J. M., Chan, M. D., Shiwani, B., Roy, S. H., Heaton, J. T., Meltzner, G. S., Contessa, P., De Luca, G., Patel, R., & Kline, J. C. (2021). Surface electromyography–based recognition, synthesis, and perception of Prosodic Subvocal Speech. Journal of Speech, Language, and Hearing Research, 64(6S), 2134–2153. https://doi.org/10.1044/2021_JSLHR-20-00257

Whitfield, J. A., Holdosh, S. R., Kriegel, Z., Sullivan, L. E., & Fullenkamp, A. M. (2021). Tracking the costs of clear and loud speech: Interactions between speech motor control and concurrent visuomotor tracking. Journal of Speech, Language, and Hearing Research, 64(6S), 2182–2195. https://doi.org/10.1044/2020_JSLHR-20-00264

Wisler, A., Teplansky, K., Heitzman, D., & Wang, J. (2021). The effects of symptom onset location on automatic amyotrophic lateral sclerosis detection using the correlation structure of articulatory movements. Journal of Speech, Language, and Hearing Research, 64(6S), 2276–2286. https://doi.org/10.1044/2020_JSLHR-20-00288

Wong, E. C. H., Velleman, S. L., Tong, M. C. F., & Lee, K. Y. S. (2021). Pitch variation in children with childhood apraxia of speech: Preliminary findings. American Journal of Speech-Language Pathology, 30(3S), 1511–1524. https://doi.org/10.1044/2021_AJSLP-20-00150