William L. Hylander

Professor Emeritus of Biological Anthropology and Anatomy

External address: 
106 Biological Sciences, Durham, NC 27710
Internal office address: 
Box 90383, Durham, NC 27705-0383
Phone: 
(919) 684-5782

Overview

My current research interests are related to the functional and evolutionary significance of craniofacial form in human and non-human primates. The long-range goal of my research is to gain a better functional understanding of the morphological diversity of the primate craniofacial region. As the primate face is dominated by the masticatory apparatus, I have concentrated on analyzing, in fully alert primates during mastication and incision, using cinefluorographic, electromyographic, strain gage and force transducer techniques, (1) how internal forces are countered or resisted throughout various facial bones, and (2) the nature of the external forces (jaw-muscle forces and reaction forces along the teethand temporomandibular joints) associated with these internal forces. These data are then used to test various hypotheses as to the functional and evolutionary significance of craniofacial form in primates.

Degrees & Credentials

  • Ph.D., University of Chicago 1972

  • M.A., University of Chicago 1969

  • D.D.S., University of Illinois 1963

  • B.S., University of Illinois 1961

Continued Support of the Duke University Primate Center for the Study of Primate Biology and History awarded by National Science Foundation (Co-Principal Investigator). 2006 to 2011

Craniofacial Biomechanics of Primates awarded by National Science Foundation (Principal Investigator). 2002 to 2007

Adductor Muscle Function and Fiber Type in Macaca and Papio awarded by National Science Foundation (Co-Principal Investigator). 2001 to 2006

Continued Support of the Duke University Center for the Study of Primate Biology and History awarded by National Science Foundation (Principal Investigator). 1999 to 2005

Symphyseal fusion in anthropoids and ungulates: A case of functional conversion? awarded by National Science Foundation (Principal Investigator). 2003 to 2004

The Mechanics of Tree Gouging in Common Marmosets (Callithrix jacchus) awarded by National Science Foundation (Principal Investigator). 2001 to 2003

Strain in The Facial Bones of Primates awarded by National Institutes of Health (Principal Investigator). 1976 to 2000

Strain On The Facial Bones Of Primates awarded by National Institutes of Health (Principal Investigator). 1995 to 1999

Craniofacial Biomechanics Of Primates awarded by National Science Foundation (Principal Investigator). 1995 to 1998

Muscular Effect On Mandibular Movements awarded by National Institutes of Health (Principal Investigator). 1995 to 1998

Pages

Ravosa, MJ, Savakova, DG, Johnson, KR, and Hylander, WL. "Primate origins and the function of the circumorbital region: What's load got to do with it?." PRIMATE ORIGINS: Adaptations and Evolution. December 1, 2007. 285-328. Full Text

Terhune, CE, Hylander, WL, Vinyard, CJ, and Taylor, AB. "Jaw-muscle architecture and mandibular morphology influence relative maximum jaw gapes in the sexually dimorphic Macaca fascicularis." Journal of human evolution 82 (May 2015): 145-158. Full Text

Wall, CE, Briggs, MM, Huq, E, Hylander, WL, and Schachat, F. "Regional variation in IIM myosin heavy chain expression in the temporalis muscle of female and male baboons (Papio anubis)." Arch Oral Biol 58.4 (April 2013): 435-443. Full Text

Hylander, WL, Vinyard, CJ, Wall, CE, Williams, SH, and Johnson, KR. "Functional and evolutionary significance of the recruitment and firing patterns of the jaw adductors during chewing in Verreaux's sifaka (Propithecus verreauxi)." Am J Phys Anthropol 145.4 (August 2011): 531-547. Full Text

Williams, SH, Vinyard, CJ, Wall, CE, Doherty, AH, Crompton, AW, and Hylander, WL. "A preliminary analysis of correlated evolution in Mammalian chewing motor patterns." Integr Comp Biol 51.2 (August 2011): 247-259. Full Text

Vinyard, CJ, Williams, SH, Wall, CE, Doherty, AH, Crompton, AW, and Hylander, WL. "A preliminary analysis of correlations between chewing motor patterns and mandibular morphology across mammals." Integr Comp Biol 51.2 (August 2011): 260-270. Full Text

Strait, DS, Weber, GW, Neubauer, S, Chalk, J, Richmond, BG, Lucas, PW, Spencer, MA, Schrein, C, Dechow, PC, Ross, CF, Grosse, IR, Wright, BW, Constantino, P, Wood, BA, Lawn, B, Hylander, WL, Wang, Q, Byron, C, Slice, DE, and Smith, AL. "The feeding biomechanics and dietary ecology of Australopithecus africanus." Proc Natl Acad Sci U S A 106.7 (February 17, 2009): 2124-2129. Full Text

Vinyard, CJ, Wall, CE, Williams, SH, and Hylander, WL. "Patterns of variation across primates in jaw-muscle electromyography during mastication." Integr Comp Biol 48.2 (August 2008): 294-311. Full Text

Hylander, WL, McMillan, AS, Lam, EWN, Watanabe, M, Langenbach, GEJ, Stavness, I, Peck, CC, and Palla, S. "From movement to models: a tribute to professor Alan G. Hannam." J Orofac Pain 22.4 (2008): 307-316.

Pages