Authors: Modha G, Bernhardt BM, Church R, Bacsfalvi P
Title: Case study using ultrasound to treat /ɹ /
Source: International Journal of Language and Communication Disorders 2008 43(3): 323-329
Year: 2008
Research Design: Single Case Design

Background: Ultrasound has shown promise as visual feedback in remediation of /r /. Aims: To compare treatment for /r / with and without ultrasound. Methods and Procedures: A Canadian English-speaking adolescent participated in a case study with a no treatment baseline, alternating treatment blocks with and without ultrasound and a final no treatment period. Outcomes and Results: Formant values and trained listener ratings of speech samples indicated improvement in /r / production, particularly after the introduction of ultrasound. Conclusions: Ultrasound appeared to facilitate the acquisition of /r / for the participant. Large-scale studies are needed to evaluate ultrasound further.

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