Van Brenk, Frits and Lowit, Anja (2011) Assessing dysarthria using variability measures from audio recordings. In: 6th International Conference on Speech Motor Control, 2011-06-08 - 2011-06-11.
Brenk_2011_Assessing_dysarthria_using_variability_measures_from_audio.pdf - Submitted Version
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Classification and characterization of motor speech disorders (MSDs) is important from the viewpoint of diagnosis and treatment. Clinical diagnosis is primarily based on auditoryperceptual characteristics of perceived speech abnormalities, but is subject to unreliable clinical judgement and quantifi cation, and diffi cult to relate to the underlying pathophysiology. In this study we investigate whether it is possible to diagnose dysarthria based on measures of speech variability by using Functional Data Analysis (FDA) (Ramsay et al.,1996). A reliable quantifi cation of variability in speech can potentially reveal underlying motor control problems, enable early detection of sub-clinical speech abnormalities, and provide sensitive and quantifi able outcome measures that aid treatment strategies. FDA has been shown to be successful in investigating variability of kinematic movements obtained by lip displacement tracking, but may also be applied to other dimensions of speech, including amplitude envelopes and pitch and formant tracks. Anderson et al. (2008) used FDA to calculate spatial and temporal variability of amplitude envelopes of sentence repetitions produced by patients with hypokinetic and ataxic dysarthria and demonstrated that variability characteristics were infl uenced by dysarthria type.
|Item type:||Conference or Workshop Item (Poster)|
|Keywords:||dysarthria , motor speech disorders , speech disorder, langauge therapy, Public health. Hygiene. Preventive Medicine|
|Subjects:||Medicine > Public aspects of medicine > Public health. Hygiene. Preventive Medicine|
|Department:||Faculty of Humanities and Social Sciences (HaSS) > School of Psychological Science and Health > Speech and Language Therapy|
|Depositing user:||Pure Administrator|
|Date Deposited:||28 Mar 2012 08:31|
|Last modified:||01 Jul 2016 01:51|