12. The system as claimed in claim 10 , wherein the processing unit is configured for lowering the threshold score value if there is a deficit of an actual performance compared to a target performance, and for increasing the threshold score value for giving the robotic assistance if there is a surplus in the actual performance compared to the target performance.
12. The system as claimed in claim 10 , wherein the processing unit is configured for lowering the threshold score value if there is a deficit of an actual performance compared to a target performance, and for increasing the threshold score value for giving the robotic assistance if there is a surplus in the actual performance compared to the target performance. 13. The system as claimed in claim 12 , wherein the processing unit is configured for comparing the target performance and the actual performance over a session, k, of N k trials, and the threshold is adjusted for a next session, k+1, based on the session k.