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|Title: ||A controlled clinical application of motor learning principles with apraxia of speech|
|Authors: ||Kingma, Rachel Mary Miles|
|Issue Date: ||11-Jan-2016|
|Publisher: ||University of Sydney|
Faculty of Health Sciences
|Abstract: ||Adults with acquired apraxia of speech (AOS) often do not generalise effects of treatment to untreated speech behaviours. Recent studies suggest that using the principles of motor learning (PML) approach may optimise retention and generalisation in AOS. PML guide the structure of motor practice along with the frequency and type of feedback provided during practice. This study aimed to investigate the effects of order of stimulus presentation and feedback frequency, on the acquisition, retention, and generalisation of speech skills in persons with acquired AOS plus aphasia.
Four participants with AOS participated in a crossover design with multiple baselines across behaviours to compare two sets of motor learning principles– random order of stimulus presentation with low frequency feedback (R-L) ), considered more beneficial for learning, versus blocked order with high frequency feedback, considered less beneficial.
All participants demonstrated significantly improved performance with treated words for both treatment regimes, both throughout treatment and on retention probes. There was a trend for better retention for some participants following the R-L condition. Performance data from treatment sessions did not support more rapid acquisition under either regime. Three of four participants showed generalisation of treatment effects to untreated related words, regardless of treatment conditions.
Consistent with previous studies, individuals with chronic AOS responded positively to articulation-based intervention. The limited difference between the treatment conditions tested here suggests that the practice schedule and feedback frequency may be less important than the amount of practice provided; although the interaction of these principles and treatment dosage with other factors such as disorder severity require further investigation.|
|Access Level: ||Access is restricted to staff and students of the University of Sydney . UniKey credentials are required. Non university access may be obtained by visiting the University of Sydney Library.|
|Rights and Permissions: ||The author retains copyright of this thesis. It may only be used for the purposes of research and study. It must not be used for any other purposes and may not be transmitted or shared with others without prior permission.|
|Type of Work: ||Masters Thesis|
|Type of Publication: ||Master of Applied Science M.App.Sc.|
|Appears in Collections:||Sydney Digital Theses (University of Sydney Access only)|
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