Speech sound disorders (SSD) are the most common communication impairment in childhood, and can hamper social development and learning. Current speech therapy interventions rely predominantly on the auditory skills of the child, as little technology is available to assist in diagnosis and therapy of SSDs. Realtime visualisation of tongue movements has the potential to bring enormous benefit to ...

The degree to which genes and environment determine variations in brain structure and function is fundamentally important to understanding normal and disease-related patterns of neural organization and activity. We studied genetic contributions to the midsagittal area of the corpus callosum (CC) in pedigreed baboons (68 males, 112 females) to replicate findings of high genetic contribution to t...

This paper presents a comparative study of transformations used to compute the area of a cross sections of the vocal tract from the midsagittal diameter of the vocal tract. MRI techniques have been used to obtain cross sections of the vocal tract in a study of French oral vowels uttered by two subjects. The measured cross sectional areas are compared to the cross sectional areas computed by the...

Production of sibilant fricatives by four speakers of Mandarin Chinese was examined using real-time Magnetic Resonance Imaging (rtMRI). Data were reconstructed at 33.18 frames per second in the midsagittal plane, and additionally acquired in a coronal plane intersecting the vocal tract behind the alveolar ridge. Although individual speakers differed in the details of articulation, each of the t...

Fig 2. Three orthogonal slices from a time frame corresponding to the production of /s/ in /asa/ using sequence i8. (a) Midsagittal slice. Lines indicate slice locations corresponding to coronal (b) and axial (c) images. Arrows in (b) and (c) point out a critical feature of tongue shaping: the formation of a tongue groove. Towards Dynamic 3D MRI of Speech Yinghua Zhu, Yoon-Chul Kim, Michael Pro...

This work presents a method for reconstructing 3D tongue surfaces during speech from ultrasound data. The method reduces the dimensionality of the tongue surface and maintains highly accurate reproduction of local deformation features. This modification is an essential step if multiplane tongue movements are to be reconstructed practically into tongue surface movements. Earlier work (Stone & Lu...