Abstract
An articulatory study was conducted to explore effects of prosodic boundary and syllable structure on temporal realizations of /ma/ in C♯V vs. ♯CV in Korean (where ‘♯’ denotes an Intonational Phrase or a Word boundary). The vocalic gesture underwent boundary-induced lengthening more in C♯V than in ♯CV, implying that the boundary effect is largely localized to the initial element whether consonantal or vocalic. CV coordination patterns were temporally neutralized between ♯CV and C♯V in the phrase-internal Word boundary condition, showing a possible ‘resyllabifiation’ of ‘C’ with the following vowel in C♯V in the articulatory temporal measures taken in the present study. It was suggested that CV gestures in C♯V, whose phasing relationship has to be determined postlexically, reorganize temporally in an in-phase coupling mode just like the way CV gestures are phased in ♯CV. Finally, while there was leftward shifting of the consonantal gesture in C♯V with some temporal variability across an IP vs. a Word boundary, intergestural timing in ♯CV remained invariant regardless of boundary strength. But the most stable temporal pattern was observed with an IP boundary in ♯CV, interpretable as an important temporal characteristic of domain-initial strengthening. Some of these results were further discussed in terms of their implications for the theory of π-gesture and the gestural coupling model of syllable structure.
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