Transcranial Magnetic Stimulation has had poor results in the past, failing to live up to its previous hype. So I want to know what they did that's fundamentall

Transcranial Magnetic Stimulation has had poor results in the past, failing to live up to its previous hype. So I want to know what they did that's fundamentally different from past results. If what they did differently was do a poor job in their experimental setup, then that is enough to explain it.