Recent advances in the physiological assessment of articulation: introducing 3D technology
Recent years have seen the development and introduction of a range of new physiological instruments for investigating various aspects of articulatory function. Included among these techniques are electromagnetic articulography (EMA), electropalatography (EPG), and pressure-sensing EPG. This chapter describes and evaluates these techniques, highlighting their relative advantages, disadvantages, and specific applications in assessing articulation in normal and disordered speakers. Emphasis is given to those instruments that enable researchers and clinicians to examine articulatory functions in three dimensions, such as 3D EPG and 3D EMA (AG500). In addition, the development and application of pressure-sensing EPG is outlined. Each of these physiological techniques is described in terms of their component hardware and underlying principles of operation. Problems encountered in the development and application of each instrument are highlighted, including difficulties with calibration, accuracy of data, transducer limitations, and so on. Research findings reported to date based on each of the above physiological instruments are reviewed and the results summarized. Future development and potential application of 3D technologies in the rehabilitation of motor speech disorders by way of 3D physiological biofeedback are highlighted.
Oxford Scholarship Online requires a subscription or purchase to access the full text of books within the service. Public users can however freely search the site and view the abstracts and keywords for each book and chapter.
If you think you should have access to this title, please contact your librarian.