I'm kind of suspiscious of that page and it's sources. Did my own search, appears the role of opiates isn't fully understood in cockroaches and it isn't very c

I'm kind of suspiscious of that page and it's sources. Did my own search, appears the role of opiates isn't fully understood in cockroaches and it isn't very conclusive on any front. http://www.sciencedirect.com/science/article/pii/0031938487903714 http://www.sciencedirect.com/science/article/pii/00319384879... <-- Reports changes with morphine and naloxone. Seems to increase how fast headless cockroaches learn to avoid shocks. (Yes, headless. great way to figure out what kind of receptors there are in the body) http://link.springer.com/article/10.3103/S0096392508040032 http://link.springer.com/article/10.3103/S0096392508040032 Norwegian gold mine ahoy: http://english.vkm.no/dav/413af9502e.pdf http://english.vkm.no/dav/413af9502e.pdf