A tutorial on articulatory muscles and ArtiSynth: Tongue and suprahyoid muscles, and 3D tongue model

Jang, Hayeun

doi:10.1111/lnc3.12447

Cited by 4 publications

(1 citation statement)

References 18 publications

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“…Indeed, cortex may be more important in control of tongue than jaw movements during feeding. Our understanding of the biomechanical and cortical control of tongue movements is also being improved by computational modeling of the human tongue by several groups [51][52][53][54][55][56][57][58][59]. Our lab has pioneered simultaneous recordings using both multi-electrode arrays in OSMcx and high speed digital videoradiography, first in 2D [60,61] and now in 3D using XROMM [35,40].…”

Section: Introductionmentioning

confidence: 99%

Biomechanical and Cortical Control of Tongue Movements During Chewing and Swallowing

Ross

Laurence-Chasen

et al. 2023

Dysphagia

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Tongue function is vital for chewing and swallowing and lingual dysfunction is often associated with dysphagia. Better treatment of dysphagia depends on a better understanding of hyolingual morphology, biomechanics, and neural control in humans and animal models. Recent research has revealed significant variation among animal models in morphology of the hyoid chain and suprahyoid muscles which may be associated with variation in swallowing mechanisms. The recent deployment of XROMM (X-ray Reconstruction of Moving Morphology) to quantify 3D hyolingual kinematics has revealed new details on flexion and roll of the tongue during chewing in animal models, movements similar to those used by humans. XROMM-based studies of swallowing in macaques have falsified traditional hypotheses of mechanisms of tongue base retraction during swallowing, and literature review suggests that other animal models may employ a diversity of mechanisms of tongue base retraction. There is variation among animal models in distribution of hyolingual proprioceptors but how that might be related to lingual mechanics is unknown. In macaque monkeys, tongue kinematics—shape and movement—are strongly encoded in neural activity in orofacial primary motor cortex, giving optimism for development of brain–machine interfaces for assisting recovery of lingual function after stroke. However, more research on hyolingual biomechanics and control is needed for technologies interfacing the nervous system with the hyolingual apparatus to become a reality.

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Section: Introductionmentioning

confidence: 99%

Biomechanical and Cortical Control of Tongue Movements During Chewing and Swallowing

Ross

Laurence-Chasen

et al. 2023

Dysphagia

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Device-Assisted Therapy for Lingual Function Rehabilitation: A “How To” Guide for Clinicians

Kallambettu,

Kaval,

Krekeler

2023

Perspect ASHA SIGs

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Purpose: Lingual function rehabilitation is a frequently targeted area of exercise-based dysphagia treatment. This tutorial aims to provide a detailed guideline for clinicians on how to apply currently available evidence for implementation of lingual rehabilitation exercises both with and without device-assisted modalities. Method: We provide a detailed review of existing definitions of lingual function parameters (e.g., strength and endurance) with currently available normative values for clinical reference. Guidelines are also provided on how to use available lingual manometry (Iowa Oral Performance Instrument and Tongueometer) to aid in both assessment and treatment. With respect to determining exercise targets based on the lingual function assessment, we review the importance of leveraging principles of exercise physiology into the rehabilitation planning. Strategies for incorporating exercise physiology principles into strength and endurance training are provided along with a case example illustrating these concepts. Conclusions: This tutorial serves as a framework for clinical implementation of comprehensive lingual function assessment and rehabilitation. Considerations regarding barriers in access to equipment and clinical advocacy are also discussed.

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Robustness of lateral tongue bracing under bite block perturbation

et al. 2022

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Lateral tongue bracing is a lingual posture in which the sides of the tongue are held against the palate and upper molars, and has been observed cross-linguistically. However, it is unknown whether lateral bracing makes adjustments to external perturbation like other body postures. The present study aims to test the robustness of lateral tongue bracing with three experiments. The first baseline experiment was an analysis of an electropalatogram database and the results showed lateral bracing being continuously maintained. The second experiment applied an external perturbation during speech production. A bite block was held between participants’ teeth while intra-oral video was used to record contact between the sides of the tongue and upper molars during speech. The results indicated that lateral bracing was maintained most of the time during speech. The third experiment included simulations investigating the activation of tongue muscles relevant to lateral bracing at different degrees of jaw opening. The results show that bracing requires higher activation of bracing agonists and lower activation of bracing antagonists as jaw opening increases. Our results suggest that lateral tongue bracing is actively maintained and robust under external perturbation and further indicate it serves as an essential lingual posture during speech production.

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A tutorial on articulatory muscles and ArtiSynth: Tongue and suprahyoid muscles, and 3D tongue model

Cited by 4 publications

References 18 publications

Biomechanical and Cortical Control of Tongue Movements During Chewing and Swallowing

Biomechanical and Cortical Control of Tongue Movements During Chewing and Swallowing

Device-Assisted Therapy for Lingual Function Rehabilitation: A “How To” Guide for Clinicians

Robustness of lateral tongue bracing under bite block perturbation

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