About this trial

This trial is enrolling individuals with motor disabilities, including spinal cord injury, stroke, neuromuscular disease, etc., as well as able-bodied participants to evaluate a non-invasive brain-computer interface (BCI). BCI uses a computer connected to electrodes on the scalp to record brain activity and to control an external device. If included, brain activity will be recorded from the participant's scalp, using surface electrodes, while mentally rehearsing arm or hand movements and the computer will either: 1) trigger electrical stimulation of the muscles appropriate to the intended movements; or 2) control the movement of a bar image on a computer screen. Researchers will measure "movement command accuracy" and changes in nerve signal strength following training.