It appears to be another name for certain kinds of 'dark'psy. To me, it brings to mind stuff like Parasense's older stuff, Gorump Peyya, stuff that's not 'dark' per se, but definitely full power getting into the brain stuff.
I don't really know though... Someone on Isra gave an explanation but I can't find it... Seems like just another name for the same stuff.
Also, there was a Deja Vu release, I'm A Program, that said on the cd: "Neurotrance-expanding your mind" and there was something like that on the DV site a while back...
And, Ive never heard anyone call it Neuro or Trauma out here. Just another name, just another box to put it in.
I just play the music.