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Yulvonnda Brown
Administrative Coordinator
Research Instrumentation
Ultrasound | Ultra high frequency sound waves are used to create image sequences of tongue motion in real-time. These 2D sequences can be reconstructed into 3D tongue surfaces. |
Cine-Magnetic Resonance Imaging (Cine-MRI) | Vocal tract image sequences are recorded at up to 25 Hz, by summing individual time phases of multiple repetition sequence during short speech utterances. |
High Resolution MRI (hMRI) | Static images define muscles and depict crisp edges within the vocal tract. |
Tagged Cine-Magnetic Resonance Imaging (tMRI) | Tags are applied to tissue, and image sequences are recorded as the tissue and tags deform. tMRI allows tracking of tissue points in oral structures, and calcualtion of deformation parameters. |
Diffusion Tensor MRI (DTI) | Tissue orientation is quantified by imaging the orientation-dependent diffusion processes that are associated with fibers. |
Acoustical Analysis | The speech wave is recorded simultaneously with the physiological measures and analysed using spectral and waveform analysis packages. |