I happen to have it and some of the things I can note is that it can be used to detect open wounds and healing wounds (healed up but skin there hasn't completely formed), triggering it causes a little sensation (or pain), not sure if any form of wave is being emmitted from it (the injury) seeing as the whole sensation feels like a wave but there's that. Also if you happen to over stimulate it, it doesn't happen to work well, especially if you are sitting down. It's appears to be stronger in general when standing up, also happens to be stronger when you picture yourself pinching the back of your head (although that's not the only way to trigger it)

Also I am a very open person and it is said that one of the preliminary findings is that it is related to extreme openness.

Another thing is that, seeing as they say it shouldn't be possible to trigger it (goosebumps voluntarily) as it is an higher brain function, I have been able to teach myself skills, like difficult unique body related skills. I can shoot spit from my tongue on command (after stimulating it with salty or peppery food or waiting a while for it to fill up), I could bend my ears inside out, I can fold my lips inside out and let it remain in that position (I can control the bottom lip on demand once the upper one has been set in position and turn it back to normal on demand, amongst alot more that I have probably forgotten (I did most of these when I was a child). Everything I listed here was copied from friends or people because I thought they were cool at the time and I'm pretty sure they are not things everyone can probably learn, so there's probably that.

I was also able to stop myself from dreaming as a child on multiple occassions for close to 6 months at a time (I can't ascertain if my brain actually stopped it or stopped me from experiencing or remembering it, but I did at least 2 to 3 times), it continued because I subconciously missed it. I have been able to do it in my teenage years but it has been much harder and honestly speaking it's not something I put much interest in and it was probably not something I was open to. Also ,I wanted the dreams to stop because I was having nightmares and dreams about falling and stuffs like that, so that's why.

I'm still trying to figure it out, the most confusing part to me is the feeling that comes with it, feels way too special and unique too just be nothing, and seeing as some people can trigger it and send it to certain body parts ( I have noticed that I am starting to get better at this also). I won't be shocked if it is a form of communication with our body itself.