Speech Processing in Stuttering
2 other identifiers
interventional
143
1 country
2
Brief 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.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Apr 2022
Typical duration for not_applicable
2 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
June 10, 2021
CompletedFirst Posted
Study publicly available on registry
June 18, 2021
CompletedStudy Start
First participant enrolled
April 4, 2022
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 16, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
June 16, 2025
CompletedJuly 3, 2025
July 1, 2025
3.2 years
June 10, 2021
July 1, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Phase locking value (PLV) - Session 1 speech tasks
The degree of synchronization will be measured by computing the PLV between subject's produced speech and the heard speech. The PLV is a vector with a value between 0 and 1 that reflects the phase difference between two signals.
Session 1 (up to 4 hours)
Phase locking value (PLV) - Session 2 speech tasks
The degree of synchronization will be measured by computing the PLV between subject's produced speech and the heard speech. The PLV is a vector with a value between 0 and 1 that reflects the phase difference between two signals. Session 2 is for adults only.
Session 2 (up to 4 hours)
Secondary Outcomes (1)
Phase locking value (PLV) - Non-speech tasks
Session 1 (up to 4 hours)
Study Arms (4)
Adults who stutter (AWS)
EXPERIMENTALParticipants will have 2 visits.
Healthy Adults
OTHERParticipants will have 2 visits.
Children who Stutter
EXPERIMENTALParticipants will have 1 visit.
Healthy Children
OTHERParticipants will have 1 visit.
Interventions
Participants will complete speech tasks such as listening to and/or producing speech and non-speech sounds.
Eligibility Criteria
You may qualify if:
- years old
- English as primary language
- Normal speech, language, hearing, cognition
You may not qualify if:
- Personal or family history of stuttering
- Major medical or psychiatric illness
- Aged 18-65 years
- English as primary language
- Normal speech, language, hearing, cognition (other than stuttering)
- Currently stutters
- Speech therapy within the past year
- Major medical or psychiatric illness
- Aged 6 to 17 years
- English as primary language
- Normal speech, language, hearing, cognition
- Personal or family history of stuttering
- Major medical or psychiatric illness
- Language/motor delay
- Aged 6 to 17 years
- +5 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (2)
University of Michigan
Ann Arbor, Michigan, 48109, United States
Michigan State University
East Lansing, Michigan, 48824, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Emily Garnett, PhD
University of Michigan
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- BASIC SCIENCE
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Research Investigator
Study Record Dates
First Submitted
June 10, 2021
First Posted
June 18, 2021
Study Start
April 4, 2022
Primary Completion
June 16, 2025
Study Completion
June 16, 2025
Last Updated
July 3, 2025
Record last verified: 2025-07
Data Sharing
- IPD Sharing
- Will not share