Callum F. Ross, PhD

My lab researches the motor control and biomechanics of feeding system. My lab uses electromyography and fluoromicrometry to study feeding muscle function, high speed biplanar videofluoroscopy to study 3d tongue and jaw kinematics, and finite element modelling to study mandible mechanics. We study diverse taxa.



My lab is working on understanding how both the jaw and tongue are moved and controlled during oral behaviors such as drinking, chewing and swallowing.



Dr. Nicho Hatsopoulos and my lab use neural recording techniques to study the role of motor and sensory cortex in control of oral behaviors including chewing and swallowing. We are researching neural encoding of jaw and tongue movements, neuroplasticity associated with learning new oral skills, and, with Dr. Fritzie Arce-McShane, the role of different oral sensory pathways in control of jaw and tongue movement.



My lab and Dr. Zeray Alemseged are using finite-element models of primate jaws to study mandible design in humans, great apes, and fossil hominids.



Dr. Russell Reid in the Department of Surgery and my lab are working with Drs. Olga Panagiotopoulou in Australia and Felippe Prado in Brazil on bioengineering of human jaw function during distraction osteogenesis and fracture repair.

Ingestive behaviors in bearded capuchins (Sapajus libidinosus).
Laird MF, Wright BW, Rivera AO, Foga├ža MD, van Casteren A, Fragaszy DM, Izar P, Visalberghi E, Scott RS, Strait DS, Ross CF, Wright KA. Ingestive behaviors in bearded capuchins (Sapajus libidinosus). Sci Rep. 2020 11 30; 10(1):20850.
PMID: 33257755

Biomechanical and morphological analysis of Pierre Robin sequence mandible: Finite element and morphometric study.
Humphries LS, Reid RR, Ross CF, Taylor AB, Collins JM, Freire AR, Rossi AC, Prado FB. Biomechanical and morphological analysis of Pierre Robin sequence mandible: Finite element and morphometric study. Anat Rec (Hoboken). 2020 Oct 25.
PMID: 33099874

Biomechanics of the mandible of Macaca mulatta during the power stroke of mastication: Loading, deformation, and strain regimes and the impact of food type.
Panagiotopoulou O, Iriarte-Diaz J, Mehari Abraha H, Taylor AB, Wilshin S, Dechow PC, Ross CF. Biomechanics of the mandible of Macaca mulatta during the power stroke of mastication: Loading, deformation, and strain regimes and the impact of food type. J Hum Evol. 2020 Oct; 147:102865.
PMID: 32905895

Integrating XMALab and DeepLabCut for high-throughput XROMM.
Laurence-Chasen JD, Manafzadeh AR, Hatsopoulos NG, Ross CF, Arce-McShane FI. Integrating XMALab and DeepLabCut for high-throughput XROMM. J Exp Biol. 2020 Sep 04; 223(Pt 17).
PMID: 32665442

Differences in muscle mechanics underlie divergent optimality criteria between feeding and locomotor systems.
Granatosky MC, Ross CF. Differences in muscle mechanics underlie divergent optimality criteria between feeding and locomotor systems. J Anat. 2020 Dec; 237(6):1072-1086.
PMID: 32671858

Teaching anatomy with dissection in the time of COVID-19 is essential and possible.
Ross CF, Pescitelli MJ, Smith HF, Williams JM. Teaching anatomy with dissection in the time of COVID-19 is essential and possible. Clin Anat. 2020 Jun 25.
PMID: 32583873

XROMM and diceCT reveal a hydraulic mechanism of tongue base retraction in swallowing.
Orsbon CP, Gidmark NJ, Gao T, Ross CF. XROMM and diceCT reveal a hydraulic mechanism of tongue base retraction in swallowing. Sci Rep. 2020 05 19; 10(1):8215.
PMID: 32427836

Muscle architecture dynamics modulate performance of the superficial anterior temporalis muscle during chewing in capuchins.
Laird MF, Granatosky MC, Taylor AB, Ross CF. Muscle architecture dynamics modulate performance of the superficial anterior temporalis muscle during chewing in capuchins. Sci Rep. 2020 04 14; 10(1):6410.
PMID: 32286442

Variation in limb loading magnitude and timing in tetrapods.
Granatosky MC, McElroy EJ, Lemelin P, Reilly SM, Nyakatura JA, Andrada E, Kilbourne BM, Allen VR, Butcher MT, Blob RW, Ross CF. Variation in limb loading magnitude and timing in tetrapods. J Exp Biol. 2020 01 27; 223(Pt 2).
PMID: 31776184

The dental microwear of hard-object feeding in laboratory Sapajus apella and its implications for dental microwear formation.
Teaford MF, Ungar PS, Taylor AB, Ross CF, Vinyard CJ. The dental microwear of hard-object feeding in laboratory Sapajus apella and its implications for dental microwear formation. Am J Phys Anthropol. 2020 03; 171(3):439-455.
PMID: 31922261

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