The exercises mimicked moves needed during surgical procedures on organs in the belly, the researchers said. "The groups that received brain stimulation were better at those tasks." Noninvasive brain stimulation is a way to influence certain parts of the brain from outside the body, and scientists have shown how it can benefit motor learning in rehabilitation therapy, the researchers said. Even outside of virtual reality, the stimulation can also likely help people learn more generally, the researchers said. "What if we could show that with brain stimulation you can learn new skills in half the time?"