Speech Processing in Stuttering

Last updated: July 1, 2025
Sponsor: University of Michigan
Overall Status: Completed

Phase

N/A

Condition

Communication Disorders

Speech Disorders

Treatment

Speech and non-speech tasks

Clinical Study ID

NCT04929184
HUM00194953
1R21DC019429-01
  • Ages 6-65
  • All Genders
  • Accepts Healthy Volunteers

Study Summary

This research is being done to better understand stuttering, specifically how people who stutter may process and/or produce speech. Eligible participants enrolled will complete a variety of computer and speech-based tasks on up to 2 visits.

Eligibility Criteria

Inclusion

Inclusion Criteria (adults who do not stutter):

  • 18-65 years old

  • English as primary language

  • Normal speech, language, hearing, cognition

Exclusion

Exclusion criteria: (adults who do not stutter)

  • Personal or family history of stuttering

  • Major medical or psychiatric illness

Inclusion criteria: (adults who stutter)

  • Aged 18-65 years

  • English as primary language

  • Normal speech, language, hearing, cognition (other than stuttering)

  • Currently stutters

Exclusion criteria: (adults who stutter)

  • Speech therapy within the past year

  • Major medical or psychiatric illness

Inclusion criteria: (children who do not stutter)

  • Aged 6 to 17 years

  • English as primary language

  • Normal speech, language, hearing, cognition

Exclusion criteria: (children who do not stutter)

  • Personal or family history of stuttering

  • Major medical or psychiatric illness

  • Language/motor delay

Inclusion criteria: (children who stutter)

  • Aged 6 to 17 years

  • English as primary language

  • Normal speech, language, hearing, cognition (other than stuttering)

  • Currently stutters

Exclusion criteria: (children who stutter)

  • Major medical or psychiatric illness

  • Language/motor delay

Study Design

Total Participants: 143
Treatment Group(s): 1
Primary Treatment: Speech and non-speech tasks
Phase:
Study Start date:
April 04, 2022
Estimated Completion Date:
June 16, 2025

Study Description

The study team will update the record to include the secondary identification number once the NIH has released the funds.

Connect with a study center

  • University of Michigan

    Ann Arbor, Michigan 48109
    United States

    Site Not Available

  • Michigan State University

    East Lansing, Michigan 48824
    United States

    Site Not Available

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