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A retrospective study of long-term treatment outcomes for reduced vocal intensity in hypokinetic dysarthria

Overview of attention for article published in BMC Ear, Nose and Throat Disorders, February 2016
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Title
A retrospective study of long-term treatment outcomes for reduced vocal intensity in hypokinetic dysarthria
Published in
BMC Ear, Nose and Throat Disorders, February 2016
DOI 10.1186/s12901-016-0022-8
Pubmed ID
Authors

Christopher R. Watts

Abstract

Reduced vocal intensity is a core impairment of hypokinetic dysarthria in Parkinson's disease (PD). Speech treatments have been developed to rehabilitate the vocal subsystems underlying this impairment. Intensive treatment programs requiring high-intensity voice and speech exercises with clinician-guided prompting and feedback have been established as effective for improving vocal function. Less is known, however, regarding long-term outcomes of clinical benefit in speakers with PD who receive these treatments. A retrospective cohort design was utilized. Data from 78 patient files across a three year period were analyzed. All patients received a structured, intensive program of voice therapy focusing on speaking intent and loudness. The dependent variable for all analyses was vocal intensity in decibels (dBSPL). Vocal intensity during sustained vowel production, reading, and novel conversational speech was compared at pre-treatment, post-treatment, six month follow-up, and twelve month follow-up periods. Statistically significant increases in vocal intensity were found at post-treatment, 6 months, and 12 month follow-up periods with intensity gains ranging from 5 to 17 dB depending on speaking condition and measurement period. Significant treatment effects were found in all three speaking conditions. Effect sizes for all outcome measures were large, suggesting a strong degree of practical significance. Significant increases in vocal intensity measured at 6 and 12 moth follow-up periods suggested that the sample of patients maintained treatment benefit for up to a year. These findings are supported by outcome studies reporting treatment outcomes within a few months post-treatment, in addition to prior studies that have reported long-term outcome results. The positive treatment outcomes experienced by the PD cohort in this study are consistent with treatment responses subsequent to other treatment approaches which focus on high-intensity, clinician guided motor learning for voice and speech production in PD. Theories regarding the underlying neurophysiological response to treatment will be discussed.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 91 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United Kingdom 1 1%
United States 1 1%
Portugal 1 1%
Unknown 88 97%

Demographic breakdown

Readers by professional status Count As %
Student > Master 13 14%
Student > Bachelor 13 14%
Student > Ph. D. Student 9 10%
Other 9 10%
Researcher 7 8%
Other 19 21%
Unknown 21 23%
Readers by discipline Count As %
Medicine and Dentistry 18 20%
Nursing and Health Professions 17 19%
Neuroscience 9 10%
Linguistics 7 8%
Psychology 5 5%
Other 8 9%
Unknown 27 30%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 10 February 2016.
All research outputs
#16,099,609
of 23,881,329 outputs
Outputs from BMC Ear, Nose and Throat Disorders
#43
of 83 outputs
Outputs of similar age
#239,687
of 402,481 outputs
Outputs of similar age from BMC Ear, Nose and Throat Disorders
#1
of 3 outputs
Altmetric has tracked 23,881,329 research outputs across all sources so far. This one is in the 22nd percentile – i.e., 22% of other outputs scored the same or lower than it.
So far Altmetric has tracked 83 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 13.3. This one is in the 39th percentile – i.e., 39% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 402,481 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 31st percentile – i.e., 31% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 3 others from the same source and published within six weeks on either side of this one. This one has scored higher than all of them