An Acoustic Study of the Relationships among Neurologic Disease, Dysarthria Type, and Severity of Dysarthria

Autor/inn/en	Kim, Yunjung; Kent, Raymond D.; Weismer, Gary
Titel	An Acoustic Study of the Relationships among Neurologic Disease, Dysarthria Type, and Severity of Dysarthria
Quelle	In: Journal of Speech, Language, and Hearing Research, 54 (2011) 2, S.417-429 (13 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1092-4388
DOI	10.1044/1092-4388(2010/10-0020)
Schlagwörter	Articulation Impairments; Neurological Impairments; Acoustics; Severity (of Disability); Predictor Variables; Speech; Classification + Suchen Sie Ihr Suchwort? Artikulationsstörung; Neurodegenerative Erkrankung; Akustik; Schweregrad; Prädiktor; Speaking; Sprechen; Classification system; Klassifikation; Klassifikationssystem
Abstract	Purpose: This study examined acoustic predictors of speech intelligibility in speakers with several types of dysarthria secondary to different diseases and conducted classification analysis solely by acoustic measures according to 3 variables (disease, speech severity, and dysarthria type). Method: Speech recordings from 107 speakers with dysarthria due to Parkinson's disease, stroke, traumatic brain injury, and multiple system atrophy were used for acoustic analysis and for perceptual judgment of speech intelligibility. Acoustic analysis included 8 segmental/suprasegmental features: 2nd formant frequency slope, articulation rate, voiceless interval duration, 1st moment analysis for fricatives, vowel space, F0, intensity range, and Pairwise Variability Index. Results: The results showed that (a) acoustic predictors of speech intelligibility differed slightly across diseases and (b) classification accuracy by dysarthria type was typically worse than by disease type or severity. Conclusions: These findings were discussed with respect to (a) the relationship between acoustic characteristics and speech intelligibility and (b) dysarthria classification. (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