So it appears that the device communicates from a signal from what they call is a "transcranial magnetic stimulation coil". But it also appears that the people

So it appears that the device communicates from a signal from what they call is a "transcranial magnetic stimulation coil". But it also appears that the people doing the experiment have knowledge of the intended outcome. Therefore, I think that they are getting a simple headache and then firing the device. The most simplest double blind test would be to take someone off the street and see if they fire that as well. Apologize if they did this and I did not catch that in link/video.