The 89th Annual Meeting of the American Association of Physical Anthropologists (2020)

Session 61. Hands and Feet of Nonhuman Primates: Integrating Form and Function. Invited Poster Symposium. Chair: Evie E. Vereecke Co-organizers: Vereecke Evie E, KU Leuven, Belgium ([email protected]); Wunderlich Roshna, James Madison University, USA ([email protected])

April 18, 2020 8 a.m. - noon, Diamond 7 Add to calendar

The cheiridia (hands and feet) of nonhuman primates directly interact with the locomotor substrates and are therefore assumed to reflect specific adaptations to locomotor behavior and grasping performance.  Hands and feet have become increasingly critical to the reconstruction of behavior and ecology in fossil primates as the fossil record has become more extensive and techniques for the analysis of extant hand and foot morphology and function have become more sophisticated.  To reconstruct the evolutionary history of primate cheiridia, researchers have investigated hand and foot morphology and function using a diversity of approaches, including morphological studies, experimental work and field work. This symposium brings together researchers using different approaches and studying different primate taxa yet addressing similar research questions regarding functional adaptation of hands and feet, ontogeny, grasping performance, joint biomechanics and mobility. The aim is to examine common and new research themes, acquaint methodological advances and explore what is needed to further increase our understanding of functional adaptations in the primate hand and foot.

Discussant: Pierre Lemelin
1 Add to calendar Comparison of wrist mechanics between pronograde monkeys and orthograde apes. Caley M. Orr.
2 Add to calendar Ontogenesis of the manual and pedal motor systems in a comparative approach in the arboreal Microcebus murinus and mainly terrestrial Papio anubis. Gregoire Boulinguez-ambroise, Anthony Herrel, Gilles Berillon, Emmanuelle Pouydebat.
3 Add to calendar Myological specializations within the hyper-derived forelimb of Perodicticus potto. Edwin Dickinson, Marissa L. Boettcher, Kaitlyn C. Leonard, Anthony Herrel, Adam Hartstone-Rose.
4 Add to calendar Myological estimates of grip strength and dexterity within primates. Adam Hartstone-Rose, Marissa L. Boettcher, Edwin Dickinson.
5 Add to calendar Speed-related changes in cheiridial posture and pressure distribution. Roshna E. Wunderlich.
6 Add to calendar Hand and foot postures and loading patterns in monkeys and apes: implications for cheiridial design. Daniel Schmitt, Angel Zeininger, Jandy B. Hanna, Roshna E. Wunderlich.
7 Add to calendar Estimating ground reaction force position in the knuckle-walking chimpanzee hand. Nathan E. Thompson, Sergio Alm├ęcija.
8 Add to calendar An integrated (micro) finite element approach to analyze force distributions in the primate thumb during functional grasps. Timo van Leeuwen, Marco TY. Schneider, Harry G. van Lenthe, Evie E. Vereecke.
9 Add to calendar Morphological and experimental evidence for the functional differentiation between the hands and feet in primates: predicted and unexpected findings. Biren A. Patel.
10 Add to calendar The role of the manual and pedal fat pads in moderating ground reaction forces and pressure patterns in knuckle-walking African apes. . Angel Zeininger, Gabriel S. Yapuncich, Daniel Schmitt, Roshna E. Wunderlich.
11 Add to calendar Variation in the arrangement of the foot interosseous muscles in great apes. Eishi Hirasaki, Motoharu Oishi.
12 Add to calendar Merging biplanar X-ray, 3-D animation, particle simulation, and virtual reality to understand 3-D foot dynamics on deformable substrates. Kevin G. Hatala, Peter L. Falkingham, Sabreen Megherhi, David A. Perry, Spencer Cheleden, Johannes Novotny, David H. Laidlaw, Stephen M. Gatesy.