Haskins Publications

Number	153
Year	1974
Drawer	3
Entry Date	06/11/1998
Authors	Hirose, H., Lee, C. Y., & Ushijima, T.
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Publication	Journal of Phonetics, 2, 145-152
url	http://www.haskins.yale.edu/Reprints/HL0153.pdf
Abstract	An electromyographic (EMG) study was made to investigate the actions of the intrinsic laryngeal muscles in the production of Korean stops. The results indicated that coordinated action of the intrinsic laryngeal muscles characterized the different types of Korean stops. Type III (aspirated) stop appeared to be characterized by marked suppression of all the abductor muscles immediately before the articulatory release. In type ( (forced) stop, thyroarytenoid (VOC) showed a sharp increase in activity before the stop release, which presumably resulted in an increase in inner tension of the vocal folds as well as in constriction of the glottis during or immediately after the articulatory closure. In type II (lax) stop, the suppression of adductors was less predominant and there was no transient increase in VOC activity before release. It seems reasonable to consider, at least for Korean stops, that the laryngeal articulatory adjustment is not limited in a simple dimension of adduction-abduction of the vocal folds, but another dimension, represented by VOC activity for example, also must be taken into consideration.
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