Both crooked and honest attempts over the years, that, basically state that exposure of a "targeted area" using various devices, exposing the brain tissue to strong electromagnetic fields generated outside the brain, has a positive effect on PWP. The idea is not ridiculous, but so far nobody has ever come up with a truly useful device, there's a reason why you have to have an electrode in your brain for DBS to work.If and when something really does work to alleviate our symptoms, using a non-invasive method utilizing, some as yet not invented way of doing the job