HOME
TRAINING
VOICE THERAPY SPECTRUM ADVENTURES IN VOICE LESSAC FOR SLPS VERDOLINI VOICE BUNDLE COACHING
MANUALS CERTIFICATES RESEARCH PROVIDERS EVENTS ABOUT HELP

Research and Evidence

Selected research supporting the Verdolini Voice courses.

The courses offered through Verdolini Voice are grounded in decades of research in voice science, behavioral voice therapy, vocal fold biology, perceptual-motor learning, healthcare psychology, pediatric voice, and clinical outcomes. The selected references below highlight research and foundational writings related to the concepts taught across our courses, including Voice Therapy Spectrum, Adventure in Voice, and Lessac for SLPs. This list is not intended to be a complete bibliography, but a curated starting point for clinicians who wish to further explore the evidence and scientific reasoning behind the methods. References are organized chronologically starting from the most recent publications.  

  1. Söylemez, D., Barmak, E., Altan, E., & Tatar, E. Ç. (2026). The effectiveness of eclectic voice therapy on multidimensional voice parameters in patients with primary muscle tension dysphonia. Journal of Voice.
  2. Raveendran, R., & Yeshoda, K. (2025). Effects of resonant voice therapy on perceptual and acoustic source and tract parameters: A preliminary study on Indian Carnatic classical singers. Journal of Voice, 39(2), 560.e1–560.e9.
  3. Rubino, M., & Abbott, K. V. (2024). Scoping review of voice therapy adherence. Journal of Voice, 38(2), 426–434.
  4. Feinstein, H., Daşdöğen, Ü., Libertus, M. E., Awan, S. N., Galera, R. I., Dohar, J. E., & Abbott, K. V. (2024). Cognitive mechanisms in pediatric voice therapy: An initial examination. Journal of Voice, 38(2), 538.e11–538.e22.
  5. Feinstein, H., Daşdöğen, Ü., Awan, J. A., Awan, S. N., & Verdolini Abbott, K. (2023). Comparative analysis of two methods of perceptual voice assessment. Journal of Voice.
  6. Daşdöğen, Ü., Awan, S. N., Bottalico, P., Iglesias, A., Getchell, N., & Abbott, K. V. (2023). The influence of multisensory input on voice perception and production using immersive virtual reality. Journal of Voice.
  7. Rubino, M., Dietrich, M. M., & Verdolini Abbott, K. (2023). Initial theoretical discussion of identity as barrier and facilitator in voice habilitation and rehabilitation. Journal of Voice.
  8. Desjardins, M., Apfelbach, C., Rubino, M., & Verdolini, K. A. (2022). Integrative review and framework of suggested mechanisms in primary muscle tension dysphonia. Journal of Speech, Language, and Hearing Research, 65(5), 1867–1893.
  9. Feinstein, H., Verdolini Abbott, K., & Morini, G. (2022). Developmental changes in the perception of vocal loudness and voice quality in 3- to 6-year-old children. American Journal of Speech-Language Pathology, 31(6), 2628–2642.
  10. Feinstein, H., & Verdolini Abbott, K. (2021). Behavioral treatment for benign vocal fold lesions in children: A systematic review. American Journal of Speech-Language Pathology.
  11. Desjardins, M., Verdolini, K. A., & Zhang, Z. (2021). Computational simulations of respiratory-laryngeal interactions and their effects on lung volume termination during phonation: Considerations for hyperfunctional voice disorders. The Journal of the Acoustical Society of America, 149(6), 3988.
  12. Saltürk, Z., Özdemir, E., Sari, H., Keten, S., Kumral, T. L., Berkiten, G., Tutar, B., & Uyar, Y. (2019). Assessment of resonant voice therapy in the treatment of vocal fold nodules. Journal of Voice, 33(5), 810.e1–810.e4.
  13. Watts, C. R., Hamilton, A., Toles, L., Childs, L., & Mau, T. (2019). Intervention outcomes of two treatments for muscle tension dysphonia: A randomized controlled trial. Journal of Speech, Language, and Hearing Research, 62(2), 272–282.
  14. Braden, M., & Verdolini Abbott, K. (2018). Advances in pediatric voice therapy. Perspectives of the ASHA Special Interest Groups, 3(3), 68–76.
  15. [Yiu, E. M.-L., Lo, M. C. M., & Barrett, E. A. (2017). A systematic review of resonant voice therapy. International Journal of Speech-Language Pathology, 19(1), 17–29.]
  16. van Leer, E., & van Mersbergen, M. (2017). Using the Borg CR10 Physical Exertion Scale to measure patient-perceived vocal effort pre and post treatment. Journal of Voice, 31(3), 389.e19–389.e25.
  17. Verdolini Abbott, K. (2013). Some guiding principles in emerging models of voice therapy for children. Seminars in Speech and Language, 34(2), 80–93.
  18. Nanjundeswaran, C., Li, N. Y. K., Chan, K. M. K., Wong, R. K. S., Yiu, E. M.-L., & Verdolini-Abbott, K. (2012). Preliminary data on prevention and treatment of voice problems in student teachers. Journal of Voice, 26(6), 816.e1–816.e12.
  19. Verdolini, K., Li, N. Y. K., Branski, R. C., Rosen, C. A., Grillo, E. G., Steinhauer, K., & Hebda, P. A. (2012). Vocal exercise may attenuate acute vocal fold inflammation. Journal of Voice, 26(6), 814.e1–814.e13.
  20. Titze, I. R., & Verdolini Abbott, K. (2012). Vocology. Iowa City, IA: National Center for Voice and Speech.
  21. Verdolini, K., & Li, N. Y. K. (2009). Resonant voice therapy. In J. C. Stemple & L. B. Thomas (Eds.), Voice Therapy: Clinical Studies (3rd ed.). San Diego, CA: Plural Publishing.
  22. Verdolini, K., Li, N. Y. K., Hersan, R., & Kessler, L. (2009). Voice therapy for children. In C. Hartnick & M. Boseley (Eds.), Clinical Management of Children’s Voice Disorders. San Diego, CA: Plural Publishing.
  23. Chen, S. H., Hsiao, T.-Y., Hsiao, L.-C., Chung, Y.-M., & Chiang, S.-C. (2007). Outcome of resonant voice therapy for female teachers with voice disorders: Perceptual, physiological, acoustic, aerodynamic, and functional measurements. Journal of Voice, 21(4), 415–425.
  24. Verdolini, K., Min, Y., Titze, I. R., Lemke, J., Brown, K., van Mersbergen, M., Jiang, J., & Fisher, K. (2002). Biological mechanisms underlying voice changes due to dehydration. Journal of Speech, Language, and Hearing Research, 45, 268–281.
  25. Berry, D., Verdolini, K., Montequin, D., Hess, M., Chan, R., & Titze, I. R. (2001). A quantitative output-cost ratio in voice production. Journal of Speech, Language, and Hearing Research, 44, 29–37.
  26. Grillo, E., & Verdolini, K. (2008). Evidence for distinguishing pressed, normal, resonant, and breathy voice qualities by laryngeal resistance and vocal efficiency in vocally trained subjects. Journal of Voice, 22(5), 546–552.
  27. Verdolini, K., Druker, D. G., Palmer, P. M., & Samawi, H. (1998). Laryngeal adduction in resonant voice. Journal of Voice, 12, 315–327.
  28. Lessac, A. (1997). The Use and Training of the Human Voice: A Bio-Dynamic Approach to Vocal Life. Mountain View, CA: Mayfield Publishing.
  29. Verdolini-Marston, K., Burke, M. K., Lessac, A., Glaze, L., & Caldwell, E. (1995). A preliminary study on two methods of treatment for laryngeal nodules. Journal of Voice, 9, 74–85.
  30. Peterson, K. L., Verdolini-Marston, K., Barkmeier, J. M., & Hoffman, H. T. (1994). Comparison of aerodynamic and electroglottographic parameters in evaluating clinically relevant voicing patterns. Annals of Otology, Rhinology, and Laryngology, 103, 335–346.
Explore Training Programs