Gaming scenario
The training setup included an AR-game for HoloLens. The training game was based on a 3D puzzle (see Fig. 
View through the HoloLens with the gaming scenario: a blue hand (yellow arrows) could select puzzles pieces. Once a piece was selected, the hand closed (see right figure) and the piece could be moved to the buildingThe difficulty of the game could be adjusted via the distance and size of the building with respect to the hand position, which led to a smaller/greater required travel distance of the patient’s hand to reach the designated spot. This, along with the robotic support level, could be also adjusted while gaming.