Preliminary Study 1 to Test the Effects of Ambulatory Voice Biofeedback



Status:Recruiting
Healthy:No
Age Range:18 - 65
Updated:3/10/2019
Start Date:September 27, 2017
End Date:April 30, 2021
Contact:Robert E Hillman, PhD
Email:hillman.robert@mgh.harvard.edu
Phone:617-643-2466

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Preliminary Study 1 to Test the Effects of Ambulatory Voice Biofeedback in Small Groups of Patients With Vocal Hyperfunction

This first study will enroll 3 groups of patients with vocal fold nodules that will receive
different schedules of ambulatory voice biofeedback (100% frequency feedback, 25% frequency
feedback, summary feedback) to avoid their upper 15th percentile of vocal loudness.

We will conduct this study (based on principles of motor learning) using novel
smartphone-based ambulatory voice biofeedback systems aimed at improving the carryover of
newly established vocal behaviors into daily life. This first study will determine which of
three types of ambulatory feedback results in better learning/retention (100% frequency, 25%
frequency, or delayed summary feedback every 2 minutes of voicing) of a new vocal behavior
(reduced vocal intensity) in three groups of 15 patients with vocal fold nodules. Hypothesis:
Patients receiving lower frequency or summary feedback will produce lower initial performance
but higher short- and long-term retention than patients receiving feedback 100% of the time.

Inclusion Criteria:

Patients with vocal fold nodules

Exclusion Criteria:

Non-English speakers are excluded because prompts on the smartphone app are only available
in English
We found this trial at
1
site
1 Bowdoin Street
Boston, Massachusetts 02114
Phone: 617-643-2466
?
mi
from
Boston, MA
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