@article{Nagengast2009 Author = {Arne J Nagengast and Daniel A Braun and Daniel M Wolpert}, Title = {Optimal control predicts human performance on objects with internal degrees of freedom.}, Journal = {PLoS Comput Biol}, Year = {2009}, Volume = {5}, Number = {6}, Pages = {e1000419}, Month = {Jun}, Institution = {Department of Engineering, Computational and Biological Learning Lab, University of Cambridge, Cambridge, United Kingdom. an261@cam.ac.uk} }