This experiment was done over a long period of time. The patient had to get multiple surgeries for the implantation of the electrodes and needed a relatively long recovery time in between surgeries. A time line of the procedures done are shown in fig. 2A. Time was also taken to work on strengthening the muscles used; there was a long period after the injury, before the experiment, when the muscles were not used at all. Before trying to move his actual arm, the patient worked on visualizing the movement, then worked on moving a virtual reality arm. Fig. 2B shows the virtual reality arm and the movement he was trying to achieve. Fig 2C shows the different stages of visualizing the movements, then using the virtual arm to see the movements and the actual movement of the arm. And fig. 2D shows the brain activity correlated with the different movements for the virtual reality and real arm.
Recent comments