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Transcranial Alternating Current Stimulation (tACS) in Stuttering

RecruitingNAAges 18 Years - 65 YearsAllUniversity of Michigan
NCT06740968 on ClinicalTrials.gov ↗
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In plain words

What the trial is, and whether it could suit you

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.

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📋 Eligibility rules (as published)
Inclusion Criteria for stutterers: * Have normal language, hearing, and cognition * Speak English as the primary language * Currently stutter * Score (per protocol) a certain value on the Stuttering Severity Instrument (SSI-4). * Have not received any treatment for stuttering within the past year Exclusion Criteria for stutterers: * History of seizures * Major medical or neurological illness (e.g., stroke, serious head trauma, brain infection, Parkinson's disease, etc.) * History of closed head injury with loss of consciousness (e.g., concussion) * Metal or electronic implants such as cochlear implants and pacemakers anywhere in the body * Braids or other hair styling that prevents direct access to the scalp (if removal not possible) * Currently pregnant
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What it tests

  • transcranial alternating current stimulation (tACS)
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Where

1 site
University of Michigan
Ann Arbor, United States
🤝 Taking part is your choice, and you can leave at any time. Only the trial team can confirm you are eligible — always decide together with your own doctor.
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