Interesting indeed. I have to look this up but, my son has Asperger Syndrome(on autism spectrum) and a lot of these traits...4,5,6 8 and 9 seem to fit how he acts. Don't know if there is a correlation with sociopathic behavior and Aspergers...but he is way to smart for his own good. I'm not calling my son a sociopath, lol, but I never saw these traits singled out before and it is indeed interesting.