dr. dylan edward system heading up the -- edwards is heading up the study. >> we think this is going to have more impact. >> the study is blind meaning some patients get tdcs and others get a placebo, a sham simulation. >> do you feel there was a significant difference before the trial and after? >> yes. it was a distinct difference in the sensation and use of my arm. >> really? the team uses another type of brain stimulation called transcranial magnetic stimulation. it is powered by a magnetic coil and used by the toam -- team to measure the brain after tdcs. >> we will register your brain to the motion capture. >> it's quite a get up. all >> nice and relaxed. [laughing] great. >> how weird. it feels like you are flicking me in the head. >> i would like to you do a small muscle contraction. >> we are trying to send a lot of information to your brain. don't get scare federal your hand twitch, okay? >> okay. oh, yeah. that's the first time i felt it. >> the single pulse of magnetism. the shock is only 100 micro seconds or so. it causes activity in the brain that goes all the way down to muscl

dr. dylan edwards is heading up the study. >> the brain is in a heightened state and we think this is going to have more impact. >> the study is blind, meaning some patients get tdcs while others get a placebo, a sham stimulation. >> do you feel there was a difference? >> yes, there was a distinct difference in the sensation and use of my arm. >> joining us now is crystal dellworth. what is different from traditional electroshock therapy? >> electroshock therapy sounds scary, but this is not a whole brain stimulation. it's low levels of current and very directed toward specific brain areas. what you don't want is to induce a seizure and that's what you're trying to do with electroshock therapy. >> do we know whether there is proof that it works? >> there is a growing body of evidence that this is an effective therapy for certain indications. we saw techno really explored the work going on with stroke patients. that's really exciting, but it's being applied in many different ways. >> it's still considered experimental? absolutely, it is definitely still experimental. >> you spoke with people