No Placebo Group
Every participant receives an active treatment — no one gets a placebo.
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At a Glance
Age
50 and older
Sex
Any
Study type
Interventional
Purpose
Treatment
Participants needed
100 (estimated)
Sponsor
Michigan State University · Other
Who this trial is looking for
This trial is looking for people with Parkinson's disease or similar conditions who have difficulty speaking. Participants will help test speech devices designed to improve their voice strength.
Are You a Good Fit for This Trial?
You may be able to join if
I am a dominant speaker of North American English
I have been diagnosed with Parkinson's disease or a related condition
I have changes in my speech or voice
You may not be able to join if
I have a history of speech, language, or neurological issues other than Parkinson's
I have uncorrected hearing loss that is worse than 40 dB in both ears
I use a cochlear implant
Summarized in plain language from this trial's official eligibility criteria.
The full criteria are further down this page — only the research team can
confirm whether you qualify.
Think this trial could be right for you?
Answer three quick questions written from this study's own rules to see if you may qualify. No account needed to find out.
The proposed research aims to investigate the use of speech amplification devices as a potential treatment option for people with Parkinson's disease and related disorders who exhibit hypophonia, a voice disorder that affects over half of those with Parkinson's disease. By characterizing the acoustic and perceptual effects of speech amplification and identifying ways to optimize outcomes through t…
The proposed research aims to investigate the use of speech amplification devices as a potential treatment option for people with Parkinson's disease and related disorders who exhibit hypophonia, a voice disorder that affects over half of those with Parkinson's disease. By characterizing the acoustic and perceptual effects of speech amplification and identifying ways to optimize outcomes through talker- and device-specific enhancements, this project seeks to develop personalized, evidence-based treatment options for hypophonia. The current proposal will move this effort forward by systematically eliciting and modifying speech amplification device output that leverage both behavioral and technological approaches.
Trial Locations
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Eligibility Criteria
Inclusion Criteria:
* Dominant speakers of North American English
* Have received a neurologist's diagnosis of Parkinson disease or parkinsonism (e.g., PSP/MSA/PSP)
* Present with changes in their speech/voice
Exclusion Criteria:
* History of any other speech, language, or neurological concern ot…
Inclusion Criteria:
* Dominant speakers of North American English
* Have received a neurologist's diagnosis of Parkinson disease or parkinsonism (e.g., PSP/MSA/PSP)
* Present with changes in their speech/voice
Exclusion Criteria:
* History of any other speech, language, or neurological concern other than Parkinson/parkinsonism.
* Uncorrected hearing loss that exceeds a threshold of 40 dB HL in more than one ear (as per baseline screening audiometry) and/or use of a cochlear implant.
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