Ultrasound imaging can be used to display the shape and movements of the tongue in real time during speech. The images can be used to determine the nature of speech sound errors. Visual feedback of the tongue can be used to facilitate improvements in speech sound production in clinical populations.
Preston, J. L., McAllister Byun, T., Boyce, S. E., Hamilton, S., Tiede, M., Phillips, E., Rivera-Campos, A., Whalen, D. H. Ultrasound Images of the Tongue: A Tutorial for Assessment and Remediation of Speech Sound Errors. J. Vis. Exp. (119), e55123, doi:10.3791/55123 (2017).