Quantitative Assessment of Interutterance Stability: Application to Dysarthria

Autor/inn/en	Cummins, Fred; Lowit, Anja; van Brenk, Frits
Titel	Quantitative Assessment of Interutterance Stability: Application to Dysarthria
Quelle	In: Journal of Speech, Language, and Hearing Research, 57 (2014) 1, S.81-89 (9 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1092-4388
DOI	10.1044/1092-4388(2013/12-0374)
Schlagwörter	Statistical Analysis; Articulation Impairments; Neurological Impairments; Speech; Sentences; Repetition; Measurement; Comprehension; Correlation; Scores; Psychomotor Skills + Suchen Sie Ihr Suchwort? Statistische Analyse; Artikulationsstörung; Neurodegenerative Erkrankung; Speaking; Sprechen; Sentence analysis; Satzanalyse; Wiederholung; Messverfahren; Verstehen; Verständnis; Korrelation; Psychomotorische Aktivität
Abstract	Purpose: Following recent attempts to quantify articulatory impairment in speech, the present study evaluates the usefulness of a novel measure of motor stability to characterize dysarthria. Method: The study included 8 speakers with ataxic dysarthria (AD), 16 speakers with hypokinetic dysarthria (HD) as a result of Parkinson's disease, and 24 unimpaired control participants. Each participant performed a series of sentence repetitions under habitual, fast, and slow speaking rate conditions. An algorithm to measure utterance-to-utterance spectro-temporal variation (UUV; Cummins, 2009) was used. Speech rate and intelligibility were also measured. Results: UUV scores were significantly correlated with perceptually based intelligibility scores. There were significant differences in UUV between control speakers and the AD but not the HD groups, presumably because of differences in intelligibility in the samples used and not because of differences in pathology. Habitual speaking rate did not correlate with UUV scores. All speaker groups had greater UUV levels in the slow conditions compared with habitual and fast speaking rates. Conclusions: UUV results were consistent with those of other variability indices and thus appear to capture motor control issues in a similar way. The results suggest that the UUV could be developed into an easy-to-use clinical tool that could function as a valid and reliable assessment and outcome measure. (As Provided).
Anmerkungen	American Speech-Language-Hearing Association (ASHA). 10801 Rockville Pike, Rockville, MD 20852. Tel: 800-638-8255; Fax: 301-571-0457; e-mail: subscribe@asha.org; Web site: http://jslhr.asha.org
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10