Using ultrasound visual biofeedback to treat persistent primary speech sound disorders

Joanne Cleland, James M. Scobbie, Alan A. Wrench

Research output: Contribution to journalArticlepeer-review

56 Citations (Scopus)
145 Downloads (Pure)


Growing evidence suggests that speech intervention using visual biofeedback may benefit people for whom visual skills are stronger than auditory skills (for example, the hearing impaired population, Bacsfalvi et al., 2007), especially when the target articulation is hard to describe or see. Diagnostic ultrasound can be used to image the tongue and has recently become more compact and affordable leading to renewed interest in it as a practical, non-invasive visual biofeedback tool. In this study we evaluate its effectiveness in treating children with persistent speech sound disorders that have been unresponsive to traditional therapy approaches.

A case series of seven different children (aged 6;0 to 11;0) with persistent speech sound disorders was evaluated. For each child high-speed ultrasound (121fps), audio and lip video recordings were made whilst probing each child’s specific errors at five different time points (before, during and after intervention). After intervention all of the children made significant progress on targeted segments, evidenced by both perceptual measures and changes in tongue-shape.
Original languageEnglish
Pages (from-to)575-597
Number of pages23
JournalClinical Linguistics & Phonetics
Issue number8-10
Early online date9 Mar 2015
Publication statusPublished - 1 Sept 2015


  • ultrasound
  • visual biofeedback
  • speech
  • speech sound disorders


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