“…In healthy participants, seeing others perform a motor task leads to motor facilitation (Ménoret et al, 2013) and motor learning (McCullagh et al, 1989; Hodges et al, 2007; Wulf and Mornell, 2008) on the part of the observer. In particular, observers appear to benefit from observing both experts and novices perform a motor task, thus learning from errors as well as exemplary performance (Andrieux and Proteau, 2013). As a result, action observation has been proposed recently as a tool for motor-rehabilitation after stroke (Garrison et al, 2010, 2013; Sale and Franceschini, 2012).…”