Fig. 1.

BMI training and experimental design. (Left) Patients were instructed to control the robotic hand by moving their phantom hands. Three types of decoders were used to control the robotic hand based on MEG signals acquired online. (Right) The experimental design. For the BMI training, we used three types of decoders: phantom decoder, random decoder and real hand decoder. Before the experiment with the real hand decoder, the patients also performed an offline movement task with their intact hand after the task with their phantom hand.