Healthy individuals 18-80 years old are needed to participate in research studies on movement control. Tasks are similar to video games that involve making simple arm movements and/or non-invasive brain stimulation. Subjects receive $20/hour for their time. For more information email BrainStimulationLab@jhmi.edu or call (443) 923-2724. PI: Pablo Celnik, MD. IRB Application: IRB00077792
