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Title:Structure in mind, structure in vocal tract
Authors:Adamantios Gafos
Length:62 pp.
Abstract:We update our understanding of the view that grammar regulates inter-segmental temporal coordination and present an extension of that view to a new domain: we argue that inter-segmental coordination is basic to prosody. It is the glue joining segments together differently in different languages (here, illustrated with examples from Arabic and Spanish) and orchestrates their unfolding in ways corresponding to constructs posited in theoretical analysis. The correspondence is one between organization in mind-brain and organization in vocal tract. Moreover, for both mind-brain and vocal tract, the organization is phonological and abstract. It is so because it holds over segments of various identities: in Arabic, the first segment in /bka/ is not prosodified as part of the same unit as /ka/ and this holds true also for /blat/, /klat/ and so on, regardless of sonority. In contrast, in English or Spanish, a different organization holds. Crucially, uniformity in organization (same organization presiding over sequences with varying segmental makeup) does not imply uniqueness of phonetic exponents: prosodic organization is pleiotropic, simultaneously expressed by more than one phonetic exponent. Finally, two properties of coordination relations are underscored: lawful flexibility and abstractness. The first is revealed in the degrees of freedom with which movements corresponding to any given effector begin; the second in invariances of task-relevant kinematic signatures regardless of the effectors implicated in any given segmental sequence. Once again, abstract phonological structure is mirrored in vocal tracts via coordination relations holding across physiology and the particular modes of its operation.

(Note: this is an updated version of ROA 462, 'A grammar of gestural coordination', in the following sense. The OT analysis in ROA 462 is not updated. The data are updated: in ROA 462, year 2001, published as Gafos 2002 NLLT, the data are all transcriptions along with some simulations; in this version, year 2018, the data are electromagnetic articulometry recordings. This 2018 version verifies the basic transcriptional assumptions taken for granted in the 2001 Optimality Theory analysis, adds certain new empirical extensions, and some new theoretical perspectives.)
Type:Paper/tech report
Area/Keywords:inter-segmental coordination, prosody, Spanish, Moroccan Arabic, electromagnetic articulometry, syllables, pleiotropy
Article:Version 1