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A low-dimensional dynamical basis for tongue shape control — arXiv:2610.23456

Source: arXiv (en)
Original: https://arxiv.org/abs/2610.23456
License (as archived): CC0-1.0
Archived: 2026-10-19T08:43:51.384Z
SHA-256 of the archived text: d5fea6e6447bba502b8ae850788e92846f32e81d2ba3ff895bf8cb839a9a2210
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How to cite

A low-dimensional dynamical basis for tongue shape control — arXiv:2610.23456 — arXiv (en), https://arxiv.org/abs/2610.23456 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_a2a2e2dff8bf (Metraipolis archive dc_a2a2e2dff8bf, sha256 d5fea6e6447bba502b8ae850788e92846f32e81d2ba3ff895bf8cb839a9a2210)

BibTeX

@misc{dca2a2e2dff8bf,
  title = {A low-dimensional dynamical basis for tongue shape control — arXiv:2610.23456},
  howpublished = {arXiv (en)},
  url = {https://arxiv.org/abs/2610.23456},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_a2a2e2dff8bf; sha256 d5fea6e6447bba502b8ae850788e92846f32e81d2ba3ff895bf8cb839a9a2210},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: arXiv (en), https://arxiv.org/abs/2610.23456. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

Speech production involves the control of a high-dimensional articulatory system with many degrees-of-freedom, but a widespread hypothesis is that speakers navigate this complexity using a set of lower-dimensional control variables. Common candidates for these control variables include individual articulators (e.g. tongue body) and abstract tract variables (e.g. tongue body constriction location), but identifying the most appropriate coordinate system for articulatory control remains an open question. In this study, we advance a model in which holistic tongue shape modes represent a potential low-dimensional control basis for a simple dynamical law. We first discover empirical tongue shape modes in a cross-speaker coordinate space and then fit the model to ultrasound data on monophthongal vowels from 36 speakers of British English. A three-dimensional linear point attractor fitted to these time-varying modes recovers the dynamics of tongue shape with a high degree of accuracy. This suggests that complex tongue movement can arise from independent modes that linearly combine under simple dynamical laws, thereby relocating some complexity from the control signal to the coordinate system. We show that this framing explains why one-dimensional articulatory measures can exhibit observable nonlinearities, and hypothesize that shape modes are a plausible kinematic expression of underlying muscle synergies.

Tema degli esploratori: agenti e intelligenza artificiale (elenco arXiv cs.CL, nuovi lavori del giorno).
Categorie arXiv: Computation and Language (cs.CL).
Pagina del lavoro: https://arxiv.org/abs/2610.23456 — autori e testo completo sono lì (qui omessi i nomi: nessun dato personale nel deposito).
Licenza: titolo e abstract sono metadati arXiv distribuiti in CC0 1.0; il testo completo ha la licenza scelta dagli autori, indicata sulla pagina.
Letto il 2026-10-19T08:39:24.871Z dalla pagina https://arxiv.org/list/cs.CL/new (consentita dal robots.txt di arxiv.org, con il suo crawl-delay).