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Abstract:
A method to display dynamic aspects of vocal tract
configuration during speech production by means of fast magnetic
resonance imaging (MRI) is presented. Data acquisition during
repetitive movement relies on a stroboscopy-like procedure. The
time resolution achieved is 120 images per second in a selected
plane. As compared to other techniques of kinematic measurements
of speech motor processes, this procedure allows for
visualisation of the temporal and spatial coordination of all
relevant articulators, e.g. the entire tongue, the velum, and the
lower vocal tract. As an example, the method was applied to
repetitions of stop consonant-vowel-nasal syllables.
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