Spasmodic dysphonia (SD) is a voice disorder that leads to strained or choked speech. SD is unresponsive to speech therapy. currently the primary treatment is Botolinum toxin injection that provides temporary symptom relief.
Our preliminary work showed that voice quality in SD improves when vibrotactile stimulation (VTS) is applied to the larynx, a non-invasive form of neuromodulation. What is needed is a device that applies VTS and can be worn by patients during daily life. This project seeks to design and build such a device and to test it with a sample of patients. For this effort to succeed, the project involves close collaboration between engineers, motor control scientists and voice disorder clinicians.
The project is supported by the U of M’s Clinical and Translational Science Award (CTSA), MnDrive grant in brain conditioning, National Science Foundation Innovation Corps Grant, and National Spasmodic Dysphonia Association (NSDA).
A clinical trial study to assess the effects of VTS
In a new research study funded by the National Spasmodic Dysphonia Association (NSDA), we now investigate the benefits of VTS approach for improving the voice symptoms of people with abductor SD (ABSD). Study participants will administer VTS using the developed wearable device for 1 hour. Researchers will assess their voice quality and monitor the corresponding neurophysiological changes in the brain using electroencephalography in the laboratory. The findings of the study will inform patients and clinicians on the possible impact of this therapeutic approach.
Dr. Juergen Konczak is the primary investigatore of this project. Other members of this interdisciplinary research team include Dr. Peter Watson, a voice disorder specialist and faculty in the U of M Department of Speech, Language and Hearing Sciences, and Dr. Lucy Dunne, an expert in the wearable devices and Co-Director, Wearable Technology Lab in Department of Design. Dr. Goding from Otolaryngology represents the clinical partner in the team. He is an expert in SD and treats these patients regularly in the U of M Lion’s Voice Clinic.
Arash Mahnan, and Jiapeng Xu from HSCL will complement the team.
Arash Mahnan Jiapeng Xu Prof. Juergen Konczak
Dr. Jürgen Konczak, Ph.D., Professor in the School of Kinesiology is the principal investigator of the study. If you would like further information, please contact the study coordinator Arash Mahnan, M.S., (phone: 612-625-3313; email: firstname.lastname@example.org).