The Effects of Word Frequency and Word Probability on Speech Rhythm in Dysarthria

Autor/inn/en	Eijk, Lotte; Fletcher, Annalise; McAuliffe, Megan; Janse, Esther
Titel	The Effects of Word Frequency and Word Probability on Speech Rhythm in Dysarthria
Quelle	In: Journal of Speech, Language, and Hearing Research, 63 (2020) 9, S.2833-2845 (13 Seiten) PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Eijk, Lotte)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1092-4388
Schlagwörter	Speech Impairments; Physical Disabilities; Word Frequency; Probability; Interaction; Severity (of Disability); Human Body; Cues; Suprasegmentals; Foreign Countries; Neurological Impairments; New Zealand + Suchen Sie Ihr Suchwort? Speech impairment; Speech handicap; Speech handicaps; Language handicps; Language impairments; Sprachbehinderung; Physical handicap; Körperbehinderung; Word analysis; Frequency; Wortanalyse; Häufigkeit; Wahrscheinlichkeitsrechnung; Wahrscheinlichkeitstheorie; Interaktion; Schweregrad; Menschlicher Körper; Stichwort; Ausland; Neurodegenerative Erkrankung; Neuseeland
Abstract	Purpose: In healthy speakers, the more frequent and probable a word is in its context, the shorter the word tends to be. This study investigated whether these probabilistic effects were similarly sized for speakers with dysarthria of different severities. Method: Fifty-six speakers of New Zealand English (42 speakers with dysarthria and 14 healthy speakers) were recorded reading the Grandfather Passage. Measurements of word duration, frequency, and transitional word probability were taken. Results: As hypothesized, words with a higher frequency and probability tended to be shorter in duration. There was also a significant interaction between word frequency and speech severity. This indicated that the more severe the dysarthria, the smaller the effects of word frequency on speakers' word durations. Transitional word probability also interacted with speech severity, but did not account for significant unique variance in the full model. Conclusions: These results suggest that, as the severity of dysarthria increases, the duration of words is less affected by probabilistic variables. These findings may be due to reductions in the control and execution of muscle movement exhibited by speakers with dysarthria. (As Provided).
Anmerkungen	American Speech-Language-Hearing Association. 2200 Research Blvd #250, Rockville, MD 20850. Tel: 301-296-5700; Fax: 301-296-8580; e-mail: slhr@asha.org; Web site: http://jslhr.pubs.asha.org
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01