NCT06181149NARecruitingAccepts Healthy Volunteers
Auditory Prediction and Error Evaluation in the Speech of Individuals Who Stutter
Arizona State University
Start Date
1/1/2024
Completion Date
12/30/2027
Summary
Stuttering negatively impacts communication and reduces the overall quality of life and well-being of individuals who stutter. This study will provide a strong foundation for developing neural and behavioral interventions for stuttering. Participants will be asked to name pictures, read words/sentences silently or aloud, and listen to speech and nonspeech sounds while their speech, muscle, and brain signals are collected. Some participants may also receive brain stimulation while reading and speaking.
Eligibility Criteria
Age Range: 3 years to No maximum
Inclusion Criteria:
* being a monolingual, native speaker of American English
* absence of developmental, psychological, neurological, or communication disorders (other than developmental stuttering) as confirmed by a certified research SLP
* normal (age-appropriate) binaural pure-tone hearing threshold (0.5-4k Hz; ≤25 dB HL for younger than 70 years, and ≤35 dB HL for older than 70 years)
* not taking any medications that affect the central nervous system
* absence of safety contra-indication for tDCS, TMS and MRI (for adults)
* scoring at the 20th percentile or higher on standardized speech-language tests (for children)
Exclusion Criteria:
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Interventions
BEHAVIORAL
Delaying speech initiation
BEHAVIORAL
Auditory errors and pre-speech auditory modulation
BEHAVIORAL
Contributions of the speech premotor cortex to pre-speech auditory modulation
BEHAVIORAL
Delaying auditory feedback
Conditions
Healthy SubjectsStuttering, Developmental
Locations
Arizona State University
Tempe, Arizona 85287
United States
Univeristy of Washington
Seattle, Washington 98105
United States