A Multidimensional Investigation of Children's /r/ Productions: Perceptual, Ultrasound, and Acoustic Measures

Autor/inn/en	Klein, Harriet B.; McAllister Byun, Tara; Davidson, Lisa; Grigos, Maria I.
Titel	A Multidimensional Investigation of Children's /r/ Productions: Perceptual, Ultrasound, and Acoustic Measures
Quelle	In: American Journal of Speech-Language Pathology, 22 (2013) 3, S.540-553 (14 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1058-0360
DOI	10.1044/1058-0360(2013/12-0137)
Schlagwörter	Speech Impairments; Articulation (Speech); Acoustics; Measures (Individuals); Allied Health Personnel; Speech Language Pathology; Speech Therapy; Intervention; Statistical Analysis; Regression (Statistics); Human Body; Diagnostic Tests; Longitudinal Studies; Comparative Analysis; North American English; Children; Males; New York + Suchen Sie Ihr Suchwort? Speech impairment; Speech handicap; Speech handicaps; Language handicps; Language impairments; Sprachbehinderung; Akustik; Messdaten; Entwicklungsproximale Sprachtherapie; Logotherapie; Statistische Analyse; Regression; Regressionsanalyse; Menschlicher Körper; Diagnostic test; Diagnostischer Test; Longitudinal study; Longitudinal method; Longitudinal methods; Längsschnittuntersuchung; Amerikanisches Englisch; Child; Kind; Kinder; Male; Männliches Geschlecht
Abstract	Purpose: This study explored relationships among perceptual, ultrasound, and acoustic measurements of children's correct and misarticulated /r/ sounds. Longitudinal data documenting changes across these parameters were collected from 2 children who acquired /r/ over a period of intervention and were compared with data from children with typical speech. Method: Participants were 3 children with typical speech, recorded once, and 2 children with /r/ misarticulation, recorded over 7-8 months. The following data from /r/ produced in nonwords were collected: perceptually rated accuracy, ultrasound measures of tongue shape, and F3-F2 distance. Results: Regression models revealed significant associations among perceptual, ultrasound, and acoustic measures of /r/ accuracy. The inclusion of quantitative tongue-shape measurements improved the match between the ultrasound and perceptual/acoustic data. Perceptually incorrect /r/ productions were found to feature posteriorly located peaked tongue shapes. Of the children who were seen longitudinally, 1 developed a bunched /r/ and 1 demonstrated retroflexion. The children with typical speech also differed in their tongue shapes. Conclusion: Results support the validity of using qualitative and quantitative ultrasound measures to characterize the accuracy of children's /r/ sounds. Clinically, findings suggest that it is important to encourage pharyngeal constriction while allowing children to find the /r/ tongue shape that best fits their individual vocal tract. (Contains 12 figures.) (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://ajslp.asha.org
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10