Fig. 2

Experimental protocol. a Experimental condition: during training the participant visualizes augmented goal-oriented movements that match his/her intended actions. b Diagram showing the methodology for the amplification of goal-oriented reaching movements in VR. At each time step, the executed movement vector is attracted towards the target, both in terms of extent and direction. c The clinical assessments (light green) are performed before the training, at the end of the training and at 12 weeks follow-up. The virtual and the real world evaluation (dark green) are performed at the beginning of the treatment and at the end of every training week. Every workday for six weeks all patients completed a session containing the three training scenarios in the following order: Spheroids (S), Whack-a-mole (W) and Collector (C)