Not sure yes, I don't know weather unbiased research has been done. Maybe I should read up on it, was given the following link, it might be a place to start.
http://www.erowid.org/psychoactives/psychoactives.shtml
tc~Down
ps~ sorry I pissed you off , yes I am ignorant of you and your stuff, and pissed at everyone who gives the time of day to opinions I consider the cause of the disaster people call life if I mistook you for one of them undeservingly I apologise.