Transcranial Magnetic Stimulation (TMS) = Ghosts?

Well, I'm here in the lab trying to understand a new technique called Transcranial Magnetic Stimulation (TMS). Here is an interesting article I found during my search. Don"t worry it"s not technical. Check it out:
http://wired-vig.wired.com/news/medtech/0,1286,51699,00.html