Retroflex versus bunched in treatment for rhotic misarticulation: evidence from ultrasound biofeedback intervention.

ABSTRACT:

Purpose

To document the efficacy of ultrasound biofeedback treatment for misarticulation of the North American English rhotic in children. Because of limited progress in the first cohort, a series of two closely related studies was conducted in place of a single study. The studies differed primarily in the nature of tongue-shape targets (e.g., retroflex, bunched) cued during treatment.

Method

Eight participants received 8 weeks of individual ultrasound biofeedback treatment targeting rhotics. In Study 1, all 4 participants were cued to match a bunched tongue-shape target. In Study 2, participants received individualized cues aimed at eliciting the tongue shape most facilitative of perceptually correct rhotics.

Results

Participants in Study 1 showed only minimal treatm

SUBMITTER: Byun TM 

PROVIDER: S-EPMC4294189 | biostudies-literature | 2014 Dec

REPOSITORIES: biostudies-literature