Tongue motion patterns in post-glossectomy and typical speakers: A principal components analysis

Maureen Stone, Julie M. Langguth, Jonghye Woo, Hegang Chen, Jerry L. Prince

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose: In this study, the authors examined changes in tongue motion caused by glossectomy surgery. A speech task that involved subtle changes in tongue-tip positioning (the motion from /i/ to /s/) was measured. The hypothesis was that patients would have limited motion on the tumor (resected) side and would compensate with greater motion on the nontumor side in order to elevate the tongue tip and blade for /s/. Method: Velocity fields were extracted from tagged magnetic resonance images in the left, middle, and right tongue of 3 patients and 10 controls. Principal components (PCs) analysis quantified motion differences and distinguished between the subject groups. Results: PCs 1 and 2 represented variance in (a) size and independence of the tongue tip, and (b) direction of motion of the tip, body, or both. Patients and controls were correctly separated by a small number of PCs. Conclusions: Motion of the tumor slice was different between patients and controls, but the nontumor side of the patients' tongues did not show excessive or adaptive motion. Both groups contained apical and laminal /s/ users, and 1 patient created apical /s/ in a highly unusual manner.

Original languageEnglish (US)
Pages (from-to)707-717
Number of pages11
JournalJournal of Speech, Language, and Hearing Research
Volume57
Issue number3
DOIs
StatePublished - 2014

Keywords

  • Glossectomy
  • MRI
  • Principal components
  • Speech
  • Tongue motion

ASJC Scopus subject areas

  • Language and Linguistics
  • Linguistics and Language
  • Speech and Hearing

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