Download This PaperTowards a Dynamical Account of Inter-Segmental Coordination
25 Pages Posted: 25 Feb 2025
Date Written: December 30, 2024
Abstract
We offer an intrinsic timing account of durations widely used to characterize inter-segmental coarticulation or coproduction patterns cross-linguistically. In this account, measured durations are the result of dynamical properties of the coarticulated segments. Our account is developed on the basis of timing data, registered using EMA, from stop-lateral clusters in three languages. In C1C2 stop-lateral consonant clusters from these languages, we show that the extent of the consonants' coproduction ('overlap') is controlled by a synergy between the dynamical parameters of C1 opening and C2 closing stiffness, the two movements most relevant in the C1-to-C2 transition. The specific form of the overlap-stiffness relation is one where extent of coproduction is a linear function of the (reciprocal of the) mean of the two stiffness parameters. This result establishes a link between lag measures widely used to characterize inter-segmental coarticulation and the dynamical properties of the gestures of the segments whose coproduction is at issue.
Keywords: inter-segmental coordination, articulatory timing, dynamics, stiffness, stop-lateral clusters, Electromagnetic Articulography, German, Spanish, Swiss German
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