Christine Elizabeth Wall
Research Professor in the Department of Evolutionary Anthropology
The focus of my work is the functional and evolutionary anatomy of the head, with an emphasis on how the feeding apparatus works and how it influences and is influenced by other structures and functions. My research focuses primarily on the functional anatomy of extant and extinct primates, but I am also interested in other mammalian groups.
Current research projects include:
(1) a detailed study of the architecture, fiber types, and the recruitment patterns of the jaw adductor muscles of priamtes. The goals are to determine the nature of the general relationship between architecture (e.g., cross-sectional area) and fiber type for the jaw adductors, to find out whether the jaw adductors are sexually dimorphic in these anthropoid primates, to test for co-variation with dietary adaptation, and to develop biomechanical models to describe this relationship and relate it to size, function, and energetic requirements;
(2) investigations of the energetic costs of feeding behaviors in humans and nonhuman primates. The goal of this work is to better understand the relationship between the functional anatomy of the feeding apparatus and the metabolic costs that an animal incurs during feeding.
(3) development of a public database - the Feeding Experiments End-user Database (FEED, www.feedexp.org) in collaboration with Dr. Rebecca German (Johns Hopkins), Dr. Susan Williams (Ohio Univ.), Dr. Chris Vinyard (NEOUCOM), and the National Evolutionary Synthesis Center. This database includes physiological data from a large number of mammalian species collected by numerous researchers. Its design will allow synthetic and integrative analyses of the evolution of the oropharyngeal apparatus and feeding behaviors in mammals. The public instance of FEED is available at https://feedexp.org/ We are also developing new analytical tools for inter-specific comparisons of raw electromyographic recordings that can be used to process data in FEED.
Hylander, WL, Wall, CE, Vinyard, CJ, Ross, C, Ravosa, MR, Williams, SH, and Johnson, KR. "Temporalis function in anthropoids and strepsirrhines: an EMG study." Am J Phys Anthropol 128.1 (September 2005): 35-56. Full Text
Vinyard, CJ, Williams, SH, Wall, CE, Johnson, KR, and Hylander, WL. "Jaw-muscle electromyography during chewing in Belanger's treeshrews (Tupaia belangeri)." Am J Phys Anthropol 127.1 (May 2005): 26-45. Full Text
Vinyard, CJ, Wall, CE, Williams, SH, and Hylander, WL. "Comparative functional analysis of skull morphology of tree-gouging primates." Am J Phys Anthropol 120.2 (February 2003): 153-170. Full Text
Williams, SH, Wall, CE, Vinyard, CJ, and Hylander, WL. "A biomechanical analysis of skull form in gum-harvesting galagids." Folia Primatologica; International Journal of Primatology 73.4 (July 2002): 197-209. Full Text
Hylander, WL, Ravosa, MJ, Ross, CF, Wall, CE, and Johnson, KR. "Symphyseal fusion and jaw-adductor muscle force: an EMG study." American Journal of Physical Anthropology 112.4 (August 2000): 469-492. (Review) Full Text
Ross, CF, and Wall, CE. "Biomechanics of mammalian feeding and primate evolution." American Journal of Physical Anthropology 112.4 (2000): 447-448. Full Text
Wall, CE, and Hylander, WL. "A comment on: the instantaneous center of rotation during human jaw opening and its significance in interpreting the functional meaning of condylar translation (Chen, x., 1998, Am J phys anthropol 106:35-46)." Am J Phys Anthropol 110.1 (September 1999): 105-107. Full Text
Wall, CE. "A model of temporomandibular joint function in anthropoid primates based on condylar movements during mastication." Am J Phys Anthropol 109.1 (May 1999): 67-88. Full Text
Wall, CE, and Hylander, WL. "A reply to "The instantaneous center of rotation during human jaw opening and its significance in interpreting the functional meaning of condylar translation" (Chen, X., 1998, Am. J. Phys. Anthropol. 106:35-46)." Am. J. Physical Anthropology 105 (1999): 105-107. (Academic Article)
Wall, CE. "The expanded mandibular condyle of the Megaladapidae." Am J Phys Anthropol 103.2 (June 1997): 263-276. Full Text