Effect of LSVT on Lexical Tone in Speakers with Parkinson's Disease
Author Information
Author(s): Tara L. Whitehill, Lorinda Kwan, Flora P.-H. Lee, Mia M.-N. Chow
Primary Institution: The University of Hong Kong
Hypothesis
Does LSVT have a positive impact on lexical tone errors in Cantonese speakers with Parkinson's disease?
Conclusion
The study found significant improvements in loudness and intonation after treatment, but no significant changes in lexical tone.
Supporting Evidence
- LSVT has well-documented treatment efficacy for individuals with hypokinetic dysarthria associated with Parkinson's disease.
- Positive changes have been noted after treatment for vocal loudness and intonation.
- The study involved a larger number of participants compared to previous studies.
Takeaway
This study looked at how a special voice treatment helps people with Parkinson's disease speak better. It helped them be louder and have better intonation, but it didn't really change their tone.
Methodology
The study involved 12 Cantonese speakers with idiopathic PD who underwent LSVT treatment, with speech data collected before and after treatment.
Potential Biases
Potential bias in participant selection and the subjective nature of perceptual ratings.
Limitations
The study's findings may not be generalizable due to the small sample size and specific language focus.
Participant Demographics
12 Cantonese speakers with idiopathic PD (5 males, 7 females; age range 56–78 years).
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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