Exploring the effect of stress on gestural coordination

In this study, I examined stress in speech production within the framework of Articulatory Phonology. Specifically, I tested the hypothesis that stress could be analyzed as a prosodic gesture. Using articulatory data from an English corpus, I found that the CV lag–the gestural lag between a consonant and a vowel–of stressed syllables is significantly larger in terms of both duration and proportion than that of unstressed syllables. I also found that stressed consonant and vowel gestures are longer than unstressed ones. These findings seem to suggest that stress could be analyzed as a prosodic gesture. Moreover, my study reveals a source of variation in CV coordination, which can inform other kinematic studies.