The objectives for this research are to determine the mechanisms by which specific therapy tasks improve voice in age-related dysphonia, and the conditions that limit the extent of improvement. The central hypothesis is that targeted therapy tasks will improve voice, and that severity will determine the extent of improvement.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
220
Abdominal voice onset
Pulling/pushing task
Assertive task
Mayo Clinic
Scottsdale, Arizona, United States
University of Arizona
Tucson, Arizona, United States
Relative glottal gap from laryngeal high-speed videoendoscopy
Time frame: End of year 3
Perceived voice quality
Participants will score the construct of "overall voice quality" using a technique called "sort and rate" in which listeners move icons representing each sound along a line. They align the icons so that best voices are on one side and worst voices are on the other. The distance between the icons represents how much better or worse one sound is than the other. There are no units to the scale. Rankings from all listeners are combined using the statistical technique of multidimensional scaling. The result is a ranked value for each sound file (i.e., voice production) that shows how different they are. There is no highest or lowest value.
Time frame: End of year 3
Acoustic measure of voice quality (Cepstral Peak Prominence)
Time frame: End of year 3
Open quotient from laryngeal high-speed videoendoscopy
Time frame: End of year 3
Speed index from laryngeal high-speed videoendoscopy
Time frame: End of year 3
Maximum area declination ratefrom laryngeal high-speed videoendoscopy
Time frame: End of year 3
Fundamental frequency standard deviation from laryngeal high-speed videoendoscopy
Time frame: End of year 3
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Semi-occluded vocal tract