Abstract
Tongue gestures during speech utterances were studied by use of computerized dynamic palatography [O. Fujimura, I. F. Tatsumi, and R. Kagaya, J. Phonetics 1, 47–54 (1972)]. An artificial palate with 64 independent electrodes was used to record the palato-lingual contact patterns at a rate of 100 frames per second. Some computer programs have been developed for recording a large number of speech samples, to display contact patterns as viewed from two different angles for visual examination and to compute the number of the electrodes in contact with the tongue within specific portions of the palate as a function of time. A number of utterances of various V1CV2- and V1V2-type nonsense words have been examined, and some characteristics of the coarticulartory effects, including the palatalization of consonants when succeeded by/i/, are discussed with physiological interpretations.
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