3D Augmented Reality Mirror Visual Feedback Applied to the Treatment of Unilateral Upper Extremity Neuropathic Pain.

Each treatment period included a 3DARS (3D augmented reality system)training session.All 3DARS training sessions were performed in the same quiet room under the supervision of the same single investigator.The 3DARS training session protocol included two virtual training procedures. The first virtual training procedure consisted of applying a vertical virtual mirror to the display screen, where the non-affected side of the patient's body (such as the right) was symmetrically duplicated by a vertical axis on the affected side (such as the left).The second virtual training procedure consisted of flipping the 3D image horizontally along a vertical axis. This allowed patients to observe the reflection of their non-affected upper extremity as if it was the affected one.