About the Authors

Anne M. Burrows

burrows@duq.edu

Affiliations Department of Physical Therapy, Duquesne University, Pittsburgh, Pennsylvania, United States of America, Department of Anthropology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America

Lisa A. Parr

Affiliation Department of Psychiatry and Behavioral Science, Center for Translational Neuroscience, Yerkes National Primate Research Center, Emory University, Atlanta, Georgia, United States of America

Emily L. Durham

Affiliation Department of Physical Therapy, Duquesne University, Pittsburgh, Pennsylvania, United States of America

Lea C. Matthews

Affiliation Department of Health Management Systems, Duquesne University, Pittsburgh, Pennsylvania, United States of America

Timothy D. Smith

Affiliations Department of Anthropology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America, School of Physical Therapy, Slippery Rock University, Slippery Rock, Pennsylvania, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AMB ELD. Performed the experiments: ELD LCM. Analyzed the data: AMB ELD. Contributed reagents/materials/analysis tools: AMB. Contributed to the writing of the manuscript: AMB LAP ELD TDS.