Sequential motion rates in the dysarthria of multiple sclerosis: A temporal analysis
Journal
International Congress of Phonetic Sciences
Date Issued
August 2011
Abstract
Dysarthria is present in 23 - 51% of multiple
sclerosis (MS) patients, and the perceived
characteristics of dysarthria have been shown to
predict quality of life in these individuals. Tests
of maximum performance such as oral
diadochokinesis and Sequential Motion Rates
(SMRs) are used in many neurology clinics and are
considered to be sensitive indices of dysarthria.
This large scale study investigated the SMRs in
two groups of participants, i.e. MS dysarthrics and
pair matched controls. The main conclusion of this
study is that speech rate was significantly lower in
the MS dysarthrics. This was primarily caused by
longer stop gap durations and to a lesser extent the
duration of the word-final vowels. The significance
of measuring SMR rate to the description of
dysarthria in the MS participants in this study
holds promise for being a marker of disease
progression and may have implications for speech
therapy in these patients.
sclerosis (MS) patients, and the perceived
characteristics of dysarthria have been shown to
predict quality of life in these individuals. Tests
of maximum performance such as oral
diadochokinesis and Sequential Motion Rates
(SMRs) are used in many neurology clinics and are
considered to be sensitive indices of dysarthria.
This large scale study investigated the SMRs in
two groups of participants, i.e. MS dysarthrics and
pair matched controls. The main conclusion of this
study is that speech rate was significantly lower in
the MS dysarthrics. This was primarily caused by
longer stop gap durations and to a lesser extent the
duration of the word-final vowels. The significance
of measuring SMR rate to the description of
dysarthria in the MS participants in this study
holds promise for being a marker of disease
progression and may have implications for speech
therapy in these patients.
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