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.

Suction feeding biomechanics of Polypterus bichir: investigating linkage mechanisms and the contributions of cranial kinesis to oral cavity volume change.
Whitlow KR, Ross CF, Gidmark NJ, Laurence-Chasen JD, Westneat MW. Suction feeding biomechanics of Polypterus bichir: investigating linkage mechanisms and the contributions of cranial kinesis to oral cavity volume change. J Exp Biol. 2022 02 01; 225(3).
PMID: 35019979

Twist and chew: three-dimensional tongue kinematics during chewing in macaque primates.
Feilich KL, Laurence-Chasen JD, Orsbon C, Gidmark NJ, Ross CF. Twist and chew: three-dimensional tongue kinematics during chewing in macaque primates. Biol Lett. 2021 12; 17(12):20210431.
PMID: 34905722

Morphological disparity and evolutionary transformations in the primate hyoid apparatus.
Li P, Ross CF, Luo ZX. Morphological disparity and evolutionary transformations in the primate hyoid apparatus. J Hum Evol. 2022 01; 162:103094.
PMID: 34808474

Fracture Fixation Technique and Chewing Side Impact Jaw Mechanics in Mandible Fracture Repair.
Mehari Abraha H, Iriarte-Diaz J, Reid RR, Ross CF, Panagiotopoulou O. Fracture Fixation Technique and Chewing Side Impact Jaw Mechanics in Mandible Fracture Repair. JBMR Plus. 2022 Jan; 6(1):e10559.
PMID: 35079674

Grit your teeth and chew your food: Implications of food material properties and abrasives for rates of dental microwear formation in laboratory Sapajus apella (Primates).
Teaford MF, Ross CF, Ungar PS, Vinyard CJ, Laird MF. Grit your teeth and chew your food: Implications of food material properties and abrasives for rates of dental microwear formation in laboratory Sapajus apella (Primates). Palaeogeogr Palaeoclimatol Palaeoecol. 2021 Dec 01; 583.
PMID: 34764513

Comparative biomechanics of the Pan and Macaca mandibles during mastication: finite element modelling of loading, deformation and strain regimes.
Smith AL, Robinson C, Taylor AB, Panagiotopoulou O, Davis J, Ward CV, Kimbel WH, Alemseged Z, Ross CF. Comparative biomechanics of the Pan and Macaca mandibles during mastication: finite element modelling of loading, deformation and strain regimes. Interface Focus. 2021 Oct 06; 11(5):20210031.
PMID: 34938438

Comparative cranial biomechanics in two lizard species: impact of variation in cranial design.
Dutel H, Gröning F, Sharp AC, Watson PJ, Herrel A, Ross CF, Jones MEH, Evans SE, Fagan MJ. Comparative cranial biomechanics in two lizard species: impact of variation in cranial design. J Exp Biol. 2021 03 11; 224(Pt 5).
PMID: 33504585

Ingestive behaviors in bearded capuchins (Sapajus libidinosus).
Laird MF, Wright BW, Rivera AO, Fogaça 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). 2021 07; 304(7):1375-1388.
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 10; 147:102865.
PMID: 32905895

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