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Transcranial Alternating Current Stimulation (tACS) in Stuttering
Sponsor: University of Michigan
Summary
The purpose of this study is to investigate how mild, noninvasive electrical brain stimulation affects speech relevant brain areas, which may in turn affect speech fluency and speaking-related brain activity in people that stutter. The long-term goal of this study is to test the therapeutic potential of transcranial alternating current stimulation (tACS) for the treatment of stuttering. The study team hypothesizes that if stuttering involves impaired initiation of motor programs, delta-tuned tACS will strengthen communication between brain regions and decrease stuttering. Therefore, delta-tuned sensorimotor tACS will be paired with fluency-induced speech (choral reading), which is hypothesized to decrease stuttering via improved auditory motor integration.
Official title: Improving Neural Oscillation and Synchrony Between Motor and Auditory Regions in Stuttering Using Personalized Transcranial Alternating Current Stimulation (tACS)
Key Details
Gender
All
Age Range
18 Years - 65 Years
Study Type
INTERVENTIONAL
Enrollment
80
Start Date
2025-08-05
Completion Date
2029-12
Last Updated
2025-09-12
Healthy Volunteers
No
Interventions
transcranial alternating current stimulation (tACS)
During each of the 3 stimulation visits, participants will be seated in a comfortable position and a cap will be placed on participant's head similar to a swimming cap. Small electrodes will be placed near the surface of the scalp at certain regions of interest, and a weak electrical current will be passed through the electrodes into speech related brain areas for 20 minutes. The study team will not use current strengths exceeding 2 milliamps (mA).
Locations (1)
University of Michigan
Ann Arbor, Michigan, United States