[lvturner]

I checked your bio and this is obviously an area you know a great deal about, and one I'm interested in.

Do you happen to have any high-level resources on the differences, pros & cons of TENS/tVNS/tDCS/PEMF and why one would be chosen over the other?

I'm slowly starting to piece things together, but frankly I'm a bit overwhelmed by it all

[mjoxley]

Thanks. They're all experimental and YMMV. What's exciting with tVNS cf tDCS is that you can use HRV as a measure of efficacy.