Healthy Volunteers Needed:
How Does the Brain Control Speech?

The Non-invasive Neuromodulation Laboratory at the University of Minnesota is conducting a research study titled: Multimodal Assessment of Neurophysiology in Focal Dystonia. The purpose of the study is to use magnetic resonance imaging (MRI) and transcranial magnetic stimulation (TMS) to determine the structure and excitability of the brain between healthy subjects and those diagnosed spasmodic dysphonia or a focal dystonia to gain a better understanding of the cause of the disorder. TMS is a safe, non-invasive, painless procedure which allows researchers to measure the excitability of portions of the brain. A physician will place fine wire electrodes into the vocal cord muscle to monitor activity.


  • Age 21 and older, but especially in need of people 50-75 years of age
  • No history of seizure within the last two years
  • Participation includes two sessions lasting 2-3 hrs.
  • At the completion of the study you will be paid $200

More Information:

Contact our lab by phone or text at (612) 301-2460
or by email

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