in the meantime, edie geiten is thankful for her new life. >> oh!ith the battery pack delivering 1/1000th of the power that a flashlight uses. do you feel electricity or anything? >> i don't feel anything in my head at all. did you go off medication when you were pregnant? >> reporter: she's active with the mental health advocacy and support group. and she recently traveled to italy with old friends from college. >> and that smile was real. i was okay. >> reporter: it's only been an issue once. >> at the airport, i just go and i say -- and they say pacemaker. and i say yes. at one time, i said it's brain at one time, i said it's brain electrodes and i never will do that again. the woman patted me down like she was afraid i would explode. >> well, you've got to love airport security. a couple of final points. dr. mayberg and another doctor hold a patent on the procedure. this is still experimental.