Publications

PubMed Search for CE Stepp
Google Scholar Page for Cara Stepp

Selected Referred Journal and Conference Papers

In Press

• Kapsner-Smith, M., Abur, D., Eadie, T., & Stepp, C. (In Press). Test-retest reliability of behavioral assays of feedforward and feedback auditory-motor control of voice and articulation. Journal of Speech, Language, and Hearing Research.
• Houle, N., Feaster, T., Mira, A., Meeks, K., & Stepp, C. E. (In Press). Sex differences in the speech of persons with and without Parkinson’s disease.  American Journal of Speech-Language Pathology.
• Abur, D., Hillman, R., & Stepp, C. E. (In Press). Auditory-motor function pre- and post-therapy in hyperfunctional voice disorders: A case series. Journal of Voice.
• Smith, K. M., Demers-Peel, M., Manxhari, C., & Stepp, C. E. (In Press). Voice acoustic instability during spontaneous speech in Parkinson’s disease. Journal of Voice.
• Buckley, D. P., Abur, D., & Stepp, C. E. (In Press). Normative Values of Cepstral Peak Prominence Measures in Typical Speakers by Sex, Speech Stimuli, and Software Type Across the Life Span. American Journal of Speech-Language Pathology. Editable tables for use in clinical notes available here.
• Marks, K. L., Díaz-Cádiz, M. E., Toles, L. E., Buckley, D. P., Tracy, L. F., Noordzij, J. P., Grillone, G. A., & Stepp, C. E. (In Press). Automated creak differentiates adductor laryngeal dystonia and muscle tension dysphonia. Laryngoscope.
• Aaron, A. S., Abur, D., Volk, K. P., Noordzij, J. P., Tracy, L. F., & Stepp, C. E. (In Press). The relationship between pitch discrimination and fundamental frequency variation: effects of singing status and vocal hyperfunction. Journal of Voice.
• Frankford, S. A., Marks, K. L., Feaster, T. F., Doyle, P. C., & Stepp, C. E. (In Press). Symptom Expression Across Voiced Speech Sounds in Adductor Laryngeal Dystonia. Journal of Voice.
• Groll, M. D., Peterson, S. D., Zañartu, M., Vojtech, J. M., & Stepp, C. E. (In Press). Empirical evaluation of the role of vocal fold collision on relative fundamental frequency in voicing offset. Journal of Voice.
• Vojtech, J. M. & Stepp, C. E. (In Press). Effects of Age and Parkinson’s disease on the Relationship between Vocal Fold Abductory Kinematics and Relative Fundamental Frequency. Journal of Voice.
• Buckley, D. P., Vojtech, J. M., & Stepp, C. E. (In Press). Relative fundamental frequency in individuals with globus syndrome and muscle tension dysphagia. Journal of Voice.

2023

• Tomassi, N. E., Castro M. E., Timmons Sund, L., Díaz-Cádiz, M. E., Buckley, D. P., & Stepp, C. E. (2023). Effects of sidetone amplification on vocal function during telecommunication. Journal of Voice. Appendix (Instructions for clinicians and readers to implement sidetone amplification) here.
• Abur, D., MacPherson, M. K., Shembel, A. C., & Stepp, C. E. (2023). Acoustic measures of voice and physiologic measures of autonomic arousal during speech as a function of cognitive load in older adults. Journal of Voice, 37(2), 194-202.
• Serry, M. A., Stepp, C. E., & Peterson, S. D. (2023). Exploring the Mechanics of Fundamental Frequency Variation during Phonation Onset. Biomechanics and Modeling inMechanobiology, 22(1), 339-356.
• Dahl, K. L. & Stepp, C. E. (2023). Effects of cognitive stress on voice acoustics in individuals with hyperfunctional voice disorders. American Journal of Speech-Language Pathology, 32(1), 264-274.

2022

• Marks, K. L., Feaster, T. F., Baker, S., Díaz-Cádiz, M. E., Doyle, P. C., & Stepp, C. E. (2022). Spectral Aggregate of the High-Passed Fundamental Frequency and Its Relationship to the Primary Acoustic Features of Adductor Laryngeal Dystonia. Journal of Speech, Language, and Hearing Research, 65(11), 4085-4095.
• Castro, C., Prado, P., Espinoza, V. M., Testart, A., Marfull, D., Manríquez, R., Stepp, C. E., Mehta, D. D., Hillman, R. E., & Zañartu, M. (2022). Lombard Effect in Individuals with Non-Phonotraumatic Vocal Hyperfunction: Impact on Acoustic, Aerodynamic, and Vocal Fold Vibratory Parameters. Journal of Speech, Language, and Hearing Research, 65(8), 2881-2895.
• Dahl, K. L., François, F. A., Buckley, D. P., & Stepp, C. E. (2022). Voice and speech changes in transmasculine individuals following circumlaryngeal massage and laryngeal reposturing. American Journal of Speech-Language Pathology, 31(3), 1368-1382.
• Groll, M. D., Dahl, K. L., Díaz-Cádiz, M. E., Welch, B., Tracy, L. F., & Stepp, C. E. (2022). Resynthesis of Transmasculine Voices to Assess Gender Perception as a Function of Testosterone Therapy. Journal of Speech, Language, and Hearing Research, 65(7), 2474-2489.
• Weerathunge, H. R., Alzamendi, G. A., Cler, G. J., Guenther, F. H., Stepp, C. E., & Zañartu, M. (2022) LaDIVA: A neurocomputational model providing laryngeal motor control for speech acquisition and production. PLoS computational biology, 18(6), e1010159. 
• Weerathunge, H. R., Voon, T., Tardiff, M., Cilento, D. & Stepp, C. E., (2022) Auditory and Somatosensory Feedback Mechanisms of Laryngeal and Articulatory Speech Motor Control, Experimental Brain Research 240(7), 2155-2173.
• Weerathunge, H. R., Tomassi, N. E., & Stepp, C. E. (2022). What can altered auditory feedback paradigms tell us about vocal motor control in individuals with voice disorders? Perspectives of the ASHA Special Interest Groups, 1-18.
• Groll, M. D., Vojtech, J. M., Hablani, S., Mehta, D. D., Buckley, D. P., Noordzij, J. P., & Stepp, C. E. (2022). Automated relative fundamental frequency algorithms for use with neck-surface accelerometer signals. Journal of Voice, 36(2), 156-169.
• Kapsner-Smith, M. R., Díaz Cádiz, M. E., Vojtech, J. M., Buckley, D. P., Mehta, D. D., Hillman, R. E., Tracy, L. F., Noordzij, J. P., Eadie, T. L., & Stepp, C. E. (2022). Clinical Cutoff Scores for Acoustic Indices of Vocal Hyperfunction that Combine Relative Fundamental Frequency and Cepstral Peak Prominence. Journal of Speech, Language, and Hearing Research, 65(4), 1349-1369.
• Tomassi, N. E., Weerathunge, H. R., Cushman, M. R., Bohland, J. W., & Stepp, C. E. (2022). Assessing ecologically valid methods of auditory feedback measurement in individuals with typical speech. Journal of Speech, Language, and Hearing Research, 65(1), 121-135.
• Abur D., Perkell, J.S., & Stepp, C.E. (2022) Impact of Vocal Effort on Respiratory and Articulatory Kinematics. Journal of Speech, Language, and Hearing Research, 65(1), 5-21.

2021

• Abur, D., Subaciute, A., Daliri, A., Lester-Smith, R. A., Lupiani, A. A., Cilento, D., Enos, N. M., Weerathunge, H. R., Tardif, M.C. & Stepp, C. E. (2021). Feedback and Feedforward Auditory-Motor Processes for Voice and Articulation in Parkinson’s Disease. Journal of Speech, Language, and Hearing Research,64(12), 4682-4694.
• Dahl, K. L., Weerathunge, H. R., Buckley, D. P., Dolling, A. S., Díaz Cádiz, M. E., Tracy, L.F., & Stepp, C.E. (2021). Reliability and accuracy of expert auditory-perceptual evaluations of voice via telepractice platforms. American Journal of Speech-Language Pathology,30(6), 2446-2455.
• Brown, K. M., Dahl, K. L., Cler, G. J., & Stepp, C. E. (2021). Listener age and gender diversity: Effects on voice-based perception of gender. Journal of Voice, 35(5), 739-745.
• Abur, D., Subaciute, A., Kapsner-Smith, M., Segina, R. K., Tracy, L. F., Noordzij, J. P., & Stepp, C. E. (2021). Impaired auditory discrimination and auditory-motor integration in hyperfunctional voice disorders. Scientific Reports, 11, 1-11.
• Weerathunge, H. R., Segina, R. K., Tracy, L. F., & Stepp, C. E. (2021). Accuracy of acoustic measures of voice via telepractice video conferencing platforms. Journal of Speech, Language, and Hearing Research, 64(7), 2586-2599. Supplementary Material (including instructions for recording from telepractice platforms in real-time via Praat Software) here.
• Rohlfing, R. L., Buckley, D. P., Paraquive, J., Stepp, C. E., & Tracy, L. F. (2021). Hey Siri: How effective are common voice recognition systems at recognizing dysphonic voices? The Laryngoscope, 131(7), 1599-1607.
• Serry, M. A., Stepp, C. E., & Peterson, S. D. (2021). Physics of phonation offset: Towards understanding relative fundamental frequency observations. Journal of the Acoustical Society of America, 149(5), 3654-3664.
• Kapsner-Smith, M. R., Opuszynski, A., Stepp, C. E., & Eadie, T. L. (2021). The effect of visual sort and rate versus visual analog scales on the reliability of judgments of dysphonia. Journal of Speech, Language, and Hearing Research, 64(5), 1571-1580.
• Vojtech, J.M., Cilento, D.D., Luong, A.T., Noordzij, J.P., Jr., Diaz-Cadiz, M., Groll, M.D., Buckley, D.P., McKenna, V.S., Noordzij, J.P., & Stepp, C.E. (2021). Acoustic Identification of the Voicing Boundary during Intervocalic Offsets and Onsets Based on Vocal Fold Vibratory Measures. Applied Sciences, 11(9), 3816.
• Dahl, K. L. & Stepp, C. E. (2021). Changes in relative fundamental frequency under increased cognitive load in individuals with healthy voices. Journal of Speech, Language, and Hearing Research, 64(4), 1189-1196.
• Groll, M. D., Hablani, S., & Stepp, C. E. (2021). The relationship between voice onset time and increases in vocal effort and fundamental frequency. Journal of Speech, Language, and Hearing Research, 64(4), 1197-1209.
• Park, Y. P., Wang, F., Díaz Cádiz, M. E., Vojtech, J. M., Groll, M. D., & Stepp, C. E. (2021). Vocal fold kinematics and relative fundamental frequency as a function of obstruent type and speaker age. Journal of the Acoustical Society of America, 149(4), 2189-2199.
• Cler, G. J., Perkell, J. S., & Stepp, C. E. (2021). Oral configurations during vowel nasalization in English. Speech Communication, 129, 17-24.
• Hodges-Simeon, C. R., Grail, G., Albert, G., Groll, M. D., Stepp, C. E., Carré, J. M., & Arnocky, S. A. (2021). Testosterone therapy masculinizes speech and gender presentation in transgender men. Scientific Reports, 11(1), 1-10.

2020

• Park, Y., Díaz-Cádiz, M. E., Nagle, K. F., & Stepp, C. E. (2020). Perceptual and acoustic assessment of strain using synthetically modified voice samples. Journal of Speech, Language, and Hearing Research, 63(12), 3897-3908.
• Lester-Smith, R. A., Daliri, A., Enos, N. M., Abur, D., Lupiani, A. A., Letcher, S., & Stepp, C. E. (2020). The relation of articulatory and vocal auditory-motor control in typical speakers. Journal of Speech, Language, and Hearing Research, 63(11), 3628-3642.
• Hillman, R.E., Stepp, C.E., Van Stan, J.H., Zañartu, M., & Mehta, D.D. (2020). An updated theoretical framework for vocal hyperfunction. American Journal of Speech-Language Pathology, 29(4), 2254-2260.
• Buckley, D. P., Dahl, K. L., Cler, G. J., & Stepp, C. E. (2020). Transmasculine voice modification: A case study. Journal of Voice, 34(6), 903-910.
• Cler, G. J., McKenna, V. S., Dahl, K. L., & Stepp, C. E. (2020). Longitudinal case study of transgender voice changes under testosterone hormone therapy. Journal of Voice, 34(5), 748-762.
• Tracy, L. F., Segina, R. K., Díaz-Cádiz, M. E., & Stepp, C. E. (2020). The impact of communication modality on voice production. Journal of Speech, Language, and Hearing Research, 63(9), 2913-2920.
• Abur, D. & Stepp, C. E. (2020). Acuity to changes in self-generated vocal pitch in Parkinson’s disease. Journal of Speech, Language, and Hearing Research,63(9), 3208-3214.
• Weerathunge, H. R., Abur, D., Enos, N. M., Brown, K. M., & Stepp, C. E. (2020). Auditory-motor perturbations of voice fundamental frequency: Feedback delay and amplification. Journal of Speech, Language, and Hearing Research, 63(9), 2846-2860.
• Buckley, D. P., Díaz-Cádiz, M. E., Eadie, T. E., & Stepp, C. E. (2020). Acoustic model of perceived overall severity of dysphonia in adductor-type laryngeal dystonia. Journal of Speech, Language, and Hearing Research, 63(8), 2713-2722.
• Smith D. J., Stepp C. E., Guenther F. H., & Kearney E. K.  (2020). Contributions of auditory and somatosensory feedback to vocal motor control. Journal of Speech, Language, and Hearing Research, 63(7), 2039-2053.
• Groll, M. D., Hablani, S., Vojtech, J. M., & Stepp, C. E. (2020). Cursor click modality in an accelerometer-based computer access device. IEEE Transactions on Neural Systems and Rehabilitation Engineering, 28(7), 1566-1572.
• Groll, M. D., McKenna, V. S., Hablani, S., & Stepp, C. E. (2020). Formant-estimated vocal tract length and extrinsic laryngeal muscle activation during modulation of vocal effort in healthy speakers. Journal of Speech, Language, and Hearing Research, 63(5), 1395-1403.
• Vojtech, J. M., Hablani, S., Cler, G. J., & Stepp, C. E. (2020). Integrated head-tilt and electromyographic cursor control. IEEE Transactions on Neural Systems and Rehabilitation Engineering, 28(6), 1442-1451.
• Heller Murray, E. S., & Stepp, C. E. (2020). Relationships between vocal pitch perception and production: A developmental perspective. Scientific Reports, 10(1), 1-10.
• Heller Murray, E. S., Segina, R. K., Harvey Woodnorth, G., & Stepp, C. E. (2020). Relative fundamental frequency in children with and without vocal fold nodules. Journal of Speech, Language, and Hearing Research, 63(2), 361-371.
• McKenna, V. S., Hylkema, J. A., Tardif, M. C., & Stepp, C. E. (2020). Voice onset time in individuals with hyperfunctional voice disorders: Evidence for disordered vocal motor control. Journal of Speech, Language, and Hearing Research, 63(2), 405-420.

2019

• Vojtech, J. M., Segina, R. K., Buckley, D. P., Kolin, K. R., Tardif, M. C., Noordzij, J. P., & Stepp, C. E. (2019). Refining algorithmic estimation of relative fundamental frequency: Accounting for sample characteristics and fundamental frequency estimation method. The Journal of the Acoustical Society of America, 146(5), 3184-3202.
• Broadfoot, C. K., Abur, D., Hoffmeister, J. D., Stepp, C. E., & Ciucci, M. R. (2019). Research-based updates in swallowing and communication dysfunction in parkinson disease: Implications for evaluation and management. Perspectives of the ASHA Special Interest Groups, 4(5), 825-841. (Invited)
• Park, Y., Perkell, J. S., Matthies, M. L., & Stepp, C. E. (2019). Categorization in the perception of breathy voice quality and its relation to voice production in healthy speakers. Journal of Speech, Language, and Hearing Research, 62(10), 3655-3666.
• Abur, D., *Enos, N. M., & Stepp, C. E. (2019). Visual analog scale ratings and orthographic transcription measures of sentence intelligibility in parkinson’s disease with variable listener exposure. American Journal of Speech-Language Pathology, 28(3), 1222-1232.*D. Abur and N.M. Enos contributed equally to this work.
• Stepp, C. E. & Vojtech, J. M., (2019). Speech naturalness. In M. J. Ball & J. S. Damico (Eds.), The SAGE encyclopedia of human communication sciences and disorders. SAGE Publications.
• Heller Murray, E. S., Lupiani, A. A., Kolin, K. R., Segina, R. K., & Stepp, C. E. (2019). Pitch shifting with the commercially available eventide eclipse: Intended and unintended changes to the speech signal. Journal of Speech, Language, and Hearing Research, 62(7), 2270-2279.
• Cler, G. J., Kolin, K. R., Noordzij Jr, J. P., Vojtech, J. M., Fager, S. K., & Stepp, C. E. (2019). Optimized and predictive phonemic interfaces for augmentative and alternative communication. Journal of Speech, Language, and Hearing Research, 62(7), 2065-2081.
• Park, Y., & Stepp, C. E. (2019). Test–retest reliability of relative fundamental frequency and conventional acoustic, aerodynamic, and perceptual measures in individuals with healthy voices. Journal of Speech, Language, and Hearing Research, 62(6), 1707-1718.
• Díaz-Cádiz, M.E., McKenna, V. S., Vojtech, J. M., & Stepp, C. E. (2019). Adductory vocal fold kinematic trajectories during conventional versus high-speed videoendoscopy. Journal of Speech, Language, and Hearing Research, 62(6), 1685-1706.
• Vojtech, J. M., Noordzij Jr, J. P., Cler, G. J., & Stepp, C. E. (2019). The effects of modulating fundamental frequency and speech rate on the intelligibility, communication efficiency, and perceived naturalness of synthetic speech. American Journal of Speech-Language Pathology, 28(2S), 875-886.
• McKenna, V. S., Díaz-Cádiz, M. E., Shembel, A. C., Enos, N. M., & Stepp, C. E. (2019). The relationship between physiological mechanisms and the self-perception of vocal effort. Journal of Speech, Language, and Hearing Research, 62(4), 815-834.
• Park, Y., & Stepp, C. E. (2019). The effects of stress type, vowel identity, baseline f0, and loudness on the relative fundamental frequency of individuals with healthy voices. Journal of Voice, 33(5), 603-610.
• Heller Murray, E. S., Hseu, A. F., Nuss, R. C., Harvey Woodnorth, G., & Stepp, C. E. (2019). Vocal pitch discrimination in children with and without vocal fold nodules. Applied Sciences, 9(15), 3042.

2018

• Heller Murray, E. S., Michener, C. M., Enflo, L., Cler, G. J., & Stepp, C. E. (2018). The impact of glottal configuration on speech breathing. Journal of Voice, 32(4), 420-427.
• McKenna, V.S., & Stepp, C.E. (2018). The relationship between acoustical and perceptual measures of vocal effort. The Journal of the Acoustical Society of America, 144(3), 1643-1658.
• Vojtech, J. M., Cler, G. J., & Stepp, C. E. (2018). Prediction of optimal facial electromyographic sensor configurations for human–machine interface control. IEEE Transactions on Neural Systems and Rehabilitation Engineering, 26(8), 1566-1576.
• Abur, D., Lupiani, A. A., Hickox, A. E., Shinn-Cunningham, B. G., & Stepp, C. E. (2018). Loudness perception of pure tones in Parkinson’s disease. Journal of Speech, Language, and Hearing Research, 61(6), 1487-1496.
• Abur, D., Lester-Smith, R. A., Daliri, A., Lupiani, A. A., Guenther, F. H., & Stepp, C. E. (2018). Sensorimotor adaptation of voice fundamental frequency in Parkinson’s disease. PLOS One, 13(1), e0191839.
• Kaneoka, A., Pisegna, J. M., Inokuchi, H., Ueha, R., Goto, T., Nito, T., Stepp C.E., LaValley M.P., Haga N., & Langmore, S. E. (2018). Relationship between laryngeal sensory deficits, aspiration, and pneumonia in patients with dysphagia. Dysphagia, 33(2), 192-199.

2017

• Cler, G. J., & Stepp, C. E. (2017, October). Development and theoretical evaluation of optimized phonemic interfaces. In Proceedings of the 19th International ACM SIGACCESS Conference on Computers and Accessibility (pp. 230-239). 
• McKenna, V. S., Llico, A. F., Mehta, D. D., Perkell, J. S., & Stepp, C. E. (2017). Magnitude of neck-surface vibration as an estimate of subglottal pressure during modulations of vocal effort and intensity in healthy speakers. Journal of Speech, Language, and Hearing Research, 60(12), 3404-3416.
• Lien, Y. A. S., Heller Murray, E. S., Calabrese, C. R., Michener, C. M., Van Stan, J. H., Mehta, D. D., Hillman, R.E., Noordzij, J.P., & Stepp, C. E. (2017). Validation of an algorithm for semi-automated estimation of voice relative fundamental frequency. Annals of Otology, Rhinology & Laryngology, 126(10), 712-716.
• Kaneoka, A., Pisegna, J. M., Krisciunas, G. P., Nito, T., LaValley, M. P., Stepp, C. E., & Langmore, S. E. (2017). Variability of the pressure measurements exerted by the tip of laryngoscope during laryngeal sensory testing: A clinical demonstration. American Journal of Speech-Language Pathology, 26(3), 729-736.
• Stepp, C. E., Lester-Smith, R. A., Abur, D., Daliri, A., Noordzij, J.P, & Lupiani, A. A. (2017). Evidence for auditory-motor impairment in individuals with hyperfunctional voice disorders. Journal of Speech, Language, and Hearing Research, 60(6), 1545-1550.
• Heller Murray, E. S., Lien, Y. A. S., Van Stan, J. H., Mehta, D. D., Hillman, R. E., Noordzij, J.P, & Stepp, C. E. (2017). Relative fundamental frequency distinguishes between phonotraumatic and non-phonotraumatic vocal hyperfunction. Journal of Speech, Language, and Hearing Research, 60(6), 1507-1515.
  
• MacPherson, M. K., Abur, D., & Stepp, C. E. (2017). Acoustic measures of voice and physiologic measures of autonomic arousal during speech as a function of cognitive load. Journal of Voice, 31(4), 504-e1.
• Cler, G. J., Mittelman, T., Braden, M. N., Woodnorth, G. H., & Stepp, C. E. (2017). Video game rehabilitation of velopharyngeal dysfunction: A case series. Journal of Speech, Language, and Hearing Research, 60(6S), 1800-1809.
• Cler, G. J., Lee, J. C., Mittelman, T., Stepp, C. E., & Bohland, J. W. (2017). Kinematic analysis of speech sound sequencing errors induced by delayed auditory feedback. Journal of Speech, Language, and Hearing Research, 60(6S), 1695-1711.

2016

• McKenna, V. S., Heller Murray, E. S., Lien, Y. A. S., & Stepp, C. E. (2016). The relationship between relative fundamental frequency and a kinematic estimate of laryngeal stiffness in healthy adults. Journal of Speech, Language, and Hearing Research, 59(6), 1283-1294.
• Heller Murray, E. S., Mendoza, J. O., Gill, S. V., Perkell, J. S., & Stepp, C. E. (2016). Effects of biofeedback on control and generalization of nasalization in typical speakers. Journal of Speech, Language, and Hearing Research, 59(5), 1025-1034.
• Heller Murray, E. S., Girouard, K. L., Cler, G. J., & Stepp, C. E. (2016). Development of an electronic documentation system for voice therapy: A new teaching and clinical research tool. Perspectives of the ASHA special interest groups, 1(3), 63-73.
• Cler, G. J., Lien, Y. A. S., Braden, M. N., Mittelman, T., Downing, K., & Stepp, C. E. (2016). Objective measure of nasal air emission using nasal accelerometry. Journal of Speech, Language, and Hearing Research, 59(5), 1018-1024.
• Cler, G. J., Nieto-Castañón, A., Guenther, F. H., Fager, S. K., & Stepp, C. E. (2016). Surface electromyographic control of a novel phonemic interface for speech synthesis. Augmentative and Alternative Communication, 32(2), 120-130.
• Heller Murray, E. S., Hands, G. L., Calabrese, C. R., & Stepp, C. E. (2016). Effects of adventitious acute vocal trauma: Relative fundamental frequency and listener perception. Journal of Voice, 30(2), 177-185.
• Hands, G. L., & Stepp, C. E. (2016). Effect of age on human–computer interface control via neck electromyography. Interacting with computers, 28(1), 47-54.

2015

• Lien, Y. A. S., Calabrese, C. R., Michener, C. M., Heller Murray, E., Van Stan, J. H., Mehta, D. D., Hillman, R.E., Noordzij, J.P., & Stepp, C. E. (2015). Voice relative fundamental frequency via neck-skin acceleration in individuals with voice disorders. Journal of Speech, Language, and Hearing Research, 58(5), 1482-1487.
• Anand, S., & Stepp, C. E. (2015). Listener perception of monopitch, naturalness, and intelligibility for speakers with Parkinson’s disease. Journal of Speech, Language, and Hearing Research, 58(4), 1134-1144.
• Lien, Y. A. S., Michener, C. M., Eadie, T. L., & Stepp, C. E. (2015). Individual monitoring of vocal effort with relative fundamental frequency: Relationships with aerodynamics and listener perception. Journal of Speech, Language, and Hearing Research, 58(3), 566-575.
• Cler, G. J., & Stepp, C. E. (2015). Discrete versus continuous mapping of facial electromyography for human–machine interface control: Performance and training effects. IEEE Transactions on Neural Systems and Rehabilitation Engineering, 23(4), 572-580.
• Cler, G. J., Voysey, G. E., & Stepp, C. E. (2015, April 22-24). Video game speech rehabilitation for velopharyngeal dysfunction: Feasibility and pilot testing. In 2015 7th International IEEE/EMBS Conference on Neural Engineering (NER) (pp. 812-815). IEEE.

2014

• Cler, G. J., Nieto-Castanon, A., Guenther, F. H., & Stepp, C. E. (2014, August 27-30). Surface electromyographic control of speech synthesis. In 2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (pp. 5848-5851). IEEE.
• Smith, D. J., Varghese, L. A., Stepp, C. E., & Guenther, F. H. (2014, August 27-30). Comparison of steady-state visual and somatosensory evoked potentials for brain-computer interface control. In 2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (pp. 1234-1237). IEEE.
• Cler, G. J., Michener, C. M., & Stepp, C. E. (2014, August 27-30). Discrete vs. continuous surface electromyographic interface control. In 2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (pp. 4374-4377). IEEE.
• Britton, D., Benditt, J. O., Merati, A. L., Miller, R. M., Stepp, C. E., Boitano, L., Hu, A., Ciol, M., & Yorkston, K. M. (2014). Associations between laryngeal and cough dysfunction in motor neuron disease with bulbar involvement. Dysphagia, 29(6), 637-646.
• Malloy, J. R., Valentin, J. C., Hands, G. L., Stevens, C. A., Langmore, S. E., Noordzij, J. P., & Stepp, C. E. (2014). Visuomotor control of neck surface electromyography in Parkinson’s disease. NeuroRehabilitation, 35(4), 795-803.
• Perrachione, T. K., Stepp, C. E., Hillman, R. E., & Wong, P. C. (2014). Talker identification across source mechanisms: Experiments with laryngeal and electrolarynx speech. Journal of Speech, Language, and Hearing Research, 57(5), 1651-1665.
• Varghese, L. A., Mendoza, J. O., Braden, M. N., & Stepp, C. E. (2014). Effects of spectral content on Horii Oral-Nasal Coupling scores in children. The Journal of the Acoustical Society of America, 136(3), 1295-1306.
• Lien, Y. A. S., Gattuccio, C. I., & Stepp, C. E. (2014). Effects of phonetic context on relative fundamental frequency. Journal of Speech, Language, and Hearing Research, 57(4), 1259-1267.
• Hands, G. L., Larson, E., & Stepp, C. E. (2014). Effects of augmentative visual training on audio-motor mapping. Human Movement Science, 35, 145-155.
• Lien, Y. A. S., & Stepp, C. E. (2014). Comparison of voice relative fundamental frequency estimates derived from an accelerometer signal and low-pass filtered and unprocessed microphone signals. The Journal of the Acoustical Society of America, 135(5), 2977-2985.
• Favrot, S., Michener, C. M., & Stepp, C. E. (2014, May). Discrete and continuous auditory feedback based on pitch and spatial lateralization for human-machine-interface control. In Proceedings of Meetings on Acoustics 167ASA (Vol. 21, No. 1, p. 050001). Acoustical Society of America.

2013

• Thorp, E. B., Larson, E., & Stepp, C. E. (2013). Combined auditory and vibrotactile feedback for human–machine-interface control. IEEE Transactions on Neural Systems and Rehabilitation Engineering, 22(1), 62-68.
• Rombokas, E., Stepp, C. E., Chang, C., Malhotra, M., & Matsuoka, Y. (2013). Vibrotactile sensory substitution for electromyographic control of object manipulation. IEEE Transactions on Biomedical Engineering, 60(8), 2226-2232.
• Bowen, L. K., Hands, G. L., Pradhan, S., & Stepp, C. E. (2013). Effects of Parkinson’s disease on fundamental frequency variability in running speech. Journal of Medical Speech-Language Pathology, 21(3), 235-244.
• Thorp, E. B., Virnik, B. T., & Stepp, C. E. (2013). Comparison of nasal acceleration and nasalance across vowels. Journal of Speech, Language, and Hearing Research, 56(5), 1476-1484.
• Lien, Y. A. S., & Stepp, C. E. (2013, July 3-7). Automated estimation of relative fundamental frequency. In 2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) (pp. 2136-2139). IEEE.
• Hands, G. L., Larson, E., & Stepp, C. E. (2013, July 3-7). The role of augmentative visual training in auditory human-machine-interface performance. In 2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) (pp. 2804-2807). IEEE.
• Larson, E., Terry, H. P., Canevari, M. M., & Stepp, C. E. (2013). Categorical vowel perception enhances the effectiveness and generalization of auditory feedback in human-machine-interfaces. PLoS One, 8(3), e59860.
• Stepp, C. E. (2013). Relative fundamental frequency during vocal onset and offset in older speakers with and without Parkinson’s disease. The Journal of the Acoustical Society of America, 133(3), 1637-1643.
• Eadie, T. L., & Stepp, C. E. (2013). Acoustic correlate of vocal effort in spasmodic dysphonia. Annals of Otology, Rhinology & Laryngology, 122(3), 169-176.

2012

• Stepp, C. E., Sawin, D. E., & Eadie, T. L. (2012). The relationship between perception of vocal effort and relative fundamental frequency during voicing offset and onset. Journal of Speech, Language, and Hearing Research, 55(6), 1887-1896.
• Stepp, C. E., & Matsuoka, Y. (2011). Vibrotactile sensory substitution for object manipulation: Amplitude versus pulse train frequency modulation. IEEE Transactions on Neural Systems and Rehabilitation Engineering, 20(1), 31-37. 
• Thorp, E. B., Virnik, B. T., & Stepp, C. E. (2012, August 28-September 1). Normalization strategies for nasal acceleration to assess velopharyngeal function. In 2012 34th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (pp. 6459-6462). IEEE.
• Larson, E., Terry, H. P., & Stepp, C. E. (2012, August 28-September 1). Audio-visual feedback for electromyographic control of vowel synthesis. In 2012 34th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (pp. 3600-3603). IEEE.
• An, Q., Asama, H., Matsuoka, Y., & Stepp, C. E. (2012, June 24-27). Effect of vibrotactile feedback on robotic object manipulation. In 2012 4th IEEE RAS & EMBS International Conference on Biomedical Robotics and Biomechatronics (BioRob) (pp. 508-513). IEEE.
• Tejeiro, C., Stepp, C. E., Malhotra, M., Rombokas, E., & Matsuoka, Y. (2012, June 24-27). Comparison of remote pressure and vibrotactile feedback for prosthetic hand control. In 2012 4th IEEE RAS & EMBS International Conference on Biomedical Robotics and Biomechatronics (BioRob) (pp. 521-525). IEEE.
• Stepp, C. E., An, Q., & Matsuoka, Y. (2012). Repeated training with augmentative vibrotactile feedback increases object manipulation performance. PloS one, 7(2), e32743.
• Stepp, C. E. (2012). Surface electromyography for speech and swallowing systems: Measurement, analysis, and interpretation. Journal of Speech, Language, and Hearing Research, 55, 1232-1246.
• Britton, D., Yorkston, K. M., Eadie, T., Stepp, C. E., Ciol, M. A., Baylor, C., & Merati, A. L. (2012). Endoscopic assessment of vocal fold movements during cough. Annals of Otology, Rhinology & Laryngology, 121(1), 21-27.

2011

• Stepp, C. E., Oyunerdene, N., & Matsuoka, Y. (2011). Kinesthetic motor imagery modulates intermuscular coherence. IEEE Transactions on Neural Systems and Rehabilitation Engineering, 19(6), 638-643.
• Stepp, C. E., & Matsuoka, Y. (2011). Object manipulation improvements due to single session training outweigh the differences among stimulation sites during vibrotactile feedback. IEEE Transactions on Neural Systems and Rehabilitation Engineering, 19(6), 677-685.
• Stepp, C. E., Chang, C., Malhotra, M., & Matsuoka, Y. (2011, August 30-September 3). Vibrotactile feedback aids EMG control of object manipulation. In 2011 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (pp. 1061-1064). IEEE.
• An, Q., Matsuoka, Y., & Stepp, C. E. (2011, June 29-July 1). Multi-day training with vibrotactile feedback for virtual object manipulation. In 2011 IEEE International Conference on Rehabilitation Robotics (pp. 1-5). IEEE.
• An, Q., Asama, H., Stepp, C. E., & Matsuoka, Y. (2011, June 29-July 1). Uncontrolled manifold analysis of standing-up motion for development of an assistance system. In 2011 IEEE International Conference on Rehabilitation Robotics (pp. 1-5). IEEE.
• Stepp, C. E., Britton, D., Chang, C., Merati, A. L., & Matsuoka, Y. (2011, April 27-May 1). Feasibility of game-based electromyographic biofeedback for dysphagia rehabilitation. In 2011 5th International IEEE EMBS Conference on Neural Engineering of the IEEE Engineering in Medicine and Biology Society (pp. 233-236). IEEE. **Winner of the NSF Neural Engineering Travel Award
• Stepp, C. E., Heaton, J. T., Stadelman-Cohen, T. K., Braden, M. N., Jetté, M. E., & Hillman, R. E. (2011). Characteristics of phonatory function in singers and nonsingers with vocal fold nodules. Journal of voice, 25(6), 714-724.
• Stepp, C. E., Merchant, G. R., Heaton, J. T., & Hillman, R. E. (2011). Effects of voice therapy on relative fundamental frequency during voicing offset and onset in patients with vocal hyperfunction. Journal of Speech, Language, and Hearing Research 54(5), 1260-1266.
• Stepp, C. E., Hillman, R. E., & Heaton, J. T. (2011). Modulation of neck intermuscular beta coherence during voice and speech production. Journal of Speech, Language, and Hearing Research, 54(3), 836-844.
• Stepp, C. E., Heaton, J. T., Braden, M. N., Jetté, M. E., Stadelman-Cohen, T. K., & Hillman, R. E. (2011). Comparison of neck tension palpation rating systems with surface electromyographic and acoustic measures in vocal hyperfunction. Journal of Voice, 25(1), 67-75.

2010

• Stepp, C. E., Hillman, R. E., & Heaton, J. T. (2010). The impact of vocal hyperfunction on relative fundamental frequency during voicing offset and onset. Journal of Speech, Language, and Hearing Research, 53, 1220-1226.
• Stepp, C. E., Heaton, J. T., Jetté, M. E., Burns, J. A., & Hillman, R. E. (2010). Neck surface electromyography as a measure of vocal hyperfunction before and after injection laryngoplasty. Annals of Otology, Rhinology & Laryngology, 119(9), 594-601.
• Stepp, C. E., Hillman, R. E., & Heaton, J. T. (2010). A virtual trajectory model predicts differences in vocal fold kinematics in individuals with vocal hyperfunction. The Journal of the Acoustical Society of America, 127(5), 3166-3176.
• Stepp, C. E., Hillman, R. E., & Heaton, J. T. (2010). Use of neck strap muscle intermuscular coherence as an indicator of vocal hyperfunction. IEEE Transactions on Neural Systems and Rehabilitation Engineering, 18(3), 329-335.
• Huynh, K., Stepp, C. E., White, L. W., Colgate, J. E., & Matsuoka, Y. (2010, March 25-26). Finding a feature on a 3D object through single-digit haptic exploration. In 2010 IEEE Haptics Symposium (pp. 83-89). IEEE.
• Stepp, C. E., Dellon, B. T., & Matsuoka, Y. (2010, September 26-29). Contextual effects on robotic experiments of sensory feedback for object manipulation. In 2010 3rd IEEE RAS & EMBS International Conference on Biomedical Robotics and Biomechatronics (pp. 58-63). IEEE.
• Stepp, C. E., & Matsuoka, Y. (2010, August 31-September 4). Relative to direct haptic feedback, remote vibrotactile feedback improves but slows object manipulation. In 2010 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (pp. 2089-2092). IEEE.

2009

• Kubert, H. L., Stepp, C. E., Zeitels, S. M., Gooey, J. E., Walsh, M. J., Prakash, S. R., Hillman R.E., & Heaton, J. T. (2009). Electromyographic control of a hands-free electrolarynx using neck strap muscles. Journal of Communication Disorders, 42(3), 211-225.
• Stepp, C. E., Heaton, J. T., Rolland, R. G., & Hillman, R. E. (2009). Neck and face surface electromyography for prosthetic voice control after total laryngectomy. IEEE Transactions on Neural Systems and Rehabilitation Engineering, 17(2), 146-155.

2005-2008

• Stepp, C. E., Heaton, J. T., & Hillman, R. E. (2008). Post-laryngectomy speech respiration patterns. Annals of Otology, Rhinology & Laryngology, 117(8), 557-563.
• Goldstein, E. A., Heaton, J. T., Stepp, C. E., & Hillman, R. E. (2007). Training effects on speech production using a hands-free electromyographically controlled electrolarynx. Journal of Speech, Language, and Hearing Research, 50(2).
• Stepp, C. E., & Voss, S. E. (2005). Acoustics of the human middle-ear air space. The Journal of the Acoustical Society of America, 118(2), 861-871.