Volpe, B. et al. A novel approach to stroke rehabilitation robot-aided sensorimotor stimulation. Neurology 54, 1938-1944 (2000).
Izawa, J. & Shadmehr, R. On-line processing of uncertain information in visuomotor control. J Neurosci 28, 11360-11368, doi:10.1523/JNEUROSCI.3063-08.2008 (2008).