Analysis of fiber strain in the human tongue during speech

This study investigates mechanical cooperation among tongue muscles. Five volunteers were imaged using tagged magnetic resonance imaging to quantify spatiotemporal kinematics while speaking. Waveforms of strain in the line of action of fibers (SLAF) were estimated by projecting strain tensors onto a...

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Bibliographic Details
Published in:Computer methods in biomechanics and biomedical engineering 2020-06, Vol.23 (8), p.312-322
Main Authors: Gomez, Arnold D., Stone, Maureen L., Woo, Jonghye, Xing, Fangxu, Prince, Jerry L.
Format: Article
Language:English
Subjects:
Adult
Biomechanical Phenomena
Contraction
Female
Fibers
Finite strain
Humans
Kinematics
Magnetic Resonance Imaging
Male
Muscle contraction
Muscle Fibers, Skeletal - physiology
Muscles
myofiber strain
Phonetics
Speech
Speech - physiology
Speech recognition
Stress, Mechanical
tagged MRI
Tensors
Tongue
Tongue - physiology
tongue motion
Waveforms
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Summary:This study investigates mechanical cooperation among tongue muscles. Five volunteers were imaged using tagged magnetic resonance imaging to quantify spatiotemporal kinematics while speaking. Waveforms of strain in the line of action of fibers (SLAF) were estimated by projecting strain tensors onto a model of fiber directionality. SLAF waveforms were temporally aligned to determine consistency across subjects and correlation across muscles. The cohort exhibited consistent patterns of SLAF, and muscular extension-contraction was correlated. Volume-preserving tongue movement in speech generation can be achieved through multiple paths, but the study reveals similarities in motion patterns and muscular action-despite anatomical (and other) dissimilarities.
ISSN:1025-5842
1476-8259
DOI:10.1080/10255842.2020.1722808