Fig. 3.

Setup and scenario of VR-Rehab system: a the patient can be seen wearing a head-mounted display (HMD) headset and a 3D viewer and monitored by two infrared cameras that track her exact position in the virtual world. The patient also has movement controllers in the form of purple bands on their arms, equipped with sensors that track their gestures and replicate them graphically within the virtual world. b The therapist can monitor the patient’s performance through the PC, which displays the virtual world. The illustration shows a typical exercise in which the patient must move a virtual ball to a virtual basket using their virtual upper limb. c Through immersion in virtual reality and performing these exercises, the patient’s mirror neurons are stimulated, which through repetition contributes to the formation of new synaptic connections and the overall improvement of their physical condition