I have seen the opposite, I am absolutely sure I saw it on physorg.com some time back, but I have been unable to find it again. There, a wrist-band with sensors controlled an artificial hand from reading the signals off of that wristband (I'm pretty sure it involved some heavy signal processing on a nearby computer - a neural net maybe, but this is just me speculating). Anyway, it was pretty impressive, for example the operator pointed a finger, and the artificial hand did the same.
Makes one think though.. scary possibilities. (Sci-fi movies have some themes were two people are linked together, for example experiencing each others pain (or movement?)... not so far off any more?)
And also positive possibilities of course (artificial limbs replaced and controlled as the original buy the brain, etc).
It also reminded me of this: http://medicalxpress.com/news/2011-04-magnetic-fields-editor-video.html
While searching for that one I also came across this: http://wn.com/transcranial_magnetic_stimulation
But I have to say I'm a little dubious to that kind of "non-invasive" lobotomy.. what if normal synapse operation does not return somehow? Format brain anyone?