Voice Outcomes of Clear Speech Cueing in Individuals With Parkinson's Disease.
Allison S Aaron, Daria A Dragicevic, Daphne Toglia and 2 others
PMID 41390290WHAT IT FOUND
Clear speech cueing in Parkinson's disease increased vocal intensity and pitch variation, and reduced perceived breathiness.
However, changes in voice quality metrics like CPP were driven by intensity, not actual improvement, and overall dysphonia severity did not change.
Key findings
01Clear speech cueing significantly increased vocal intensity compared to typical speech.
02Clear speech cueing significantly reduced auditory-perceptual ratings of breathiness.
03There was no significant difference in cepstral peak prominence (CPP) after controlling for intensity, and no change in overall severity of dysphonia or strain.
STILL TO COME
How it was doneWhat they foundWhat it means for SLPs
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What it does not show
Participants were not required to have voice complaints, and most had mild voice symptoms, which may not represent patients seeking voice therapy. The study was a single-session lab-based experiment, not a therapeutic intervention with feedback and dosage, so it does not reflect clinical therapy outcomes. Different open-ended prompts were used for spontaneous speech in typical vs. clear conditions, which might have introduced minor speech pattern differences. There was substantial individual variability in response to cueing, meaning group averages may not predict individual patient outcomes.
Declared interests
The authors declare no competing financial interests or personal relationships.
The easy way to misread this
Do not assume that clear speech cueing improves overall voice quality or reduces dysphonia severity. The study found no significant change in overall severity of dysphonia or strain, and apparent improvements in some acoustic metrics (CPP) were driven by intensity increases rather than true voice quality enhancement.
Summarised by AI from the full paper, without a clinician reviewing it. Check it against the source before it changes what you do. Read it on PubMed →