staRt: Enhancing Speech Treatment With Smartphone-delivered Biofeedback (staRt)
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Not Applicable
Contacts and Locations
Study Locations
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-
New York
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New York, New York, United States, 10012
- New York University
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-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Normal performance on a pure-tone hearing screening at 20 dB HL, a screening examination of oral-motor structure and function, and a test of receptive language.
Exclusion Criteria:
- History of major behavioral, neurological, or hearing impairment, per parent and/or SLP report.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: Single
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: Visual-acoustic biofeedback
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In visual-acoustic biofeedback treatment, the elements of traditional treatment (auditory models and verbal descriptions of articulator placement) are enhanced with a dynamic display of the speech signal in the form of the real-time LPC (Linear Predictive Coding) spectrum generated by the staRt app.
Because correct vs incorrect productions of /r/ contrast acoustically in the frequency of the third formant (F3), participants will be cued to make their real-time LPC spectrum match a visual target characterized by a low F3 frequency.
They will be encouraged to attend to the visual display while adjusting the placement of their articulators and observing how those adjustments impact F3.
Knowledge of performance feedback will typically involve reference to the location of the third peak or 'bump' on the visual display.
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Active Comparator: Traditional articulation treatment
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Traditional articulation treatment involves providing auditory models and verbal descriptions of correct articulator placement, then cueing repetitive motor practice.
Images and diagrams of the vocal tract can be used as visual aids; however, no real-time visual display of articulatory or acoustic information will be made available.
Knowledge of performance feedback could describe either the desired articulator placement or the auditory quality of the target sound.
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What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
F3-F2 Distance, an Acoustic Measure That Correlates With Perceptual Accuracy of /r/, Measured From /r/ Sounds Produced in Treatment Sessions.
Time Frame: F3-F2 distance was measured in all 16 treatment sessions (eight of each type), which were administered over eight weeks.
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From recordings of words containing /r/ produced during treatment sessions, the sound /r/ was flagged for measurement and the first three formants (F1, F2, F3) were extracted from the center of the /r/ interval.
The distance between the second and third formants (F3-F2) was used as the index of rhoticity.
F3-F2 is small in perceptually accurate /r/, larger values indicate lower accuracy.
Summary statistics report the mean and standard deviation of normalized F3-F2 distance for each treatment condition, pooled across participants and sessions.
A two-tailed paired-samples t-test (superiority criterion) was used to compare mean F3-F2 distance for each treatment condition across subjects.
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F3-F2 distance was measured in all 16 treatment sessions (eight of each type), which were administered over eight weeks.
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Collaborators and Investigators
Sponsor
Sponsor
Collaborators
Collaborators
Study record dates
Study Major Dates
Study Start (Actual)
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Actual)
First Posted
Study Record Updates
Last Update Posted (Actual)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- staRt single-case
- R41DC016778 (U.S. NIH Grant/Contract)
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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