UNM Stuttering Lab


Rick Arenas, Ph.D.

Rick Arenas, Ph.D.


  • Evelyn Cook
  • Wylie Skillman

Topics Studied

The research being done in the UNM Stuttering Lab touches upon several areas of developmental stuttering.  Our mission is to better understand the subjective experience of stuttering in order to better guide positive change for people who stuttter.  Some of the topics we are studying include the anticipation of stuttering and the contextual variability of stuttering.  Recently our research has transitioned toward the way people relate to their stuttering and how it plays a role in their personal narrative.  Using qualitative methods, we are investigating how people who stutter change their thoughts and beliefs to live harmoniously with stuttering.    

Current Projects

The experience of being a parent of a child who stutters and subsequent involvement in support groups 

         We are recruiting parents of children who stutter who have also particpated in stuttering support groups. Click here for a flier with more study details.

Phenomenological investigation of the contextual variability and anticipation of stuttering

         We are recruiting aduls who stutter to describe their experiences with stuttering.  Click here for a flier with more study details.

If you are interested in participating in any of the studies in our lab please email stuttering@unm.edu or call 319-936-1287.

Speech Monitor

Free altered auditory feedback software. In 2007, Rick Arenas developed software for using delayed auditory feedback (DAF) and frequency altered feedback (FAF) on a PC. This software was previously offered as a free download from speechmonitor.org. The software can now be downloaded for free at this website. The software only works on a PC (sorry Mac users) and you need to use headphones and a microphone (the microphone within a laptop will work but an external microphone is best). The software is also capable of making audio recordings so that you can compare speech production with and without altered auditory feedback. The download provides a zipped folder with the software and accompanying files. You simply have to unzip the folder and click on the SpeechMonitor.exe file. For the Speech Monitor to work it is necessary that the speechmonitor.exe file stay in the same folder as the other files that come in the zipped folder. If you are using a 64 bit computer there is one extra component that needs to be installed before the software will work. There are instructions within the download that describe how to get it working on a 64 bit computer. Click here to download the software.

Selected Publications


Warner, H., Shroff, R., Zuanazzi, A., Arenas, R., & Jackson, E. (2023). Linguistic Features of Stuttering During Spontaneous Speech. Journal of Fluency Disorders, https://doi.org/10.1016/j.jfludis.2023.106016  

Neel, A., Mizusawa, C., Do, Q., & Arenas, R. (2023). Reduced duration of stuttering-like disfluencies and consistent anticipatory slowing during an adaptation task. International Journal of Language & Communication Disorders, n/a(n/a). https://doi.org/10.1111/1460-6984.12930

Neel, A., Krasilshchikova, S., Richardson, J., Arenas, R., Bennett, L., Banks, A., and Bernick. C. (2023) Articulation rate, pauses, and disfluencies in professional fighters: potential speech biomarkers for repeated head injury. Journal of Head Trauma Rehabilitation. https://doi.org/10.1097/HTR.0000000000000841

Arenas, R. M., Shoemaker, J., & Phillips, J. (2018). High prevalence of pineal cysts in adults who stutter. Brain and Language, 177-178, 18-22. https://doi.org/10.1016/j.bandl.2018.01.006

Arenas, R. M., Walker, E., & Oleson, J. (2017). Developmental stuttering in children who are hard of hearing. Language Speech and Hearing Services in Schools, 48(4), 234-248. http://doi.org/10.1044/2017_LSHSS-17-0028

Arenas, R. M. (2017). Conceptualizing and investigating the contextual variability of stuttering: The speech and monitoring interaction (SAMI) framework. Speech, Language and Hearing, 20(1), 15–28. https://doi.org/10.1080/2050571X.2016.1221877

Arenas, R. M., & Zebrowski, P. M. (2017). The relationship between stuttering anticipation and verbal response time in adults who stutter. Speech, Language and Hearing, 20(1), 1–14. https://doi.org/10.1080/2050571X.2016.1201346

Tumanova, V., Zebrowski, P. M., Goodman, S. S., & Arenas, R. M. (2015). Motor practice effects and sensorimotor integration in adults who stutter: Evidence from visuomotor tracking performance. Journal of Fluency Disorders, 45, 52–72. http://dx.doi.org/10.1016/j.jfludis.2015.04.001

Arenas, R. & Zebrowski, Z. (2013). The effects of autonomic arousal on speech production in adults who stutter: A preliminary study. Speech, Language and Hearing16:3, 176-185. http://dx.doi.org/10.1179/2050572813Y.0000000011

Arenas, R., Zebrowski, P., & Moon, J. (2012). Phonetically governed voicing onset and offset behavior in preschool children who stutter. Journal of Fluency Disorders37, 179-187. http://dx.doi.org/10.1016/j.jfludis.2012.04.001

Zebrowski, P. & Arenas, R. (2011). The “Iowa Way” revisited. Journal of Fluency Disorders36, 144-157.http://dx.doi.org/10.1016/j.jfludis.2010.08.001

Links and Resources