long term drug use = alteration of natural brain function, of course may cause psychopathic behavior.
And im guessing the drugs are not lsd and shrooms (because your pineal gland is supposedly a producer of mdmt, wich causes hallucinogens, although with shrooms/lsd you get a much more intense sensation of it, after saying this lsd and shrooms and other psychoactive drugs also might have an influence on giving psychopathic traits, but also i think they wear off aftter the effects of the drug have passed.
but rather meth , crack, pcp, angel dust, heroine, cocaine(not so much) , because of the alteration of the seratonin levels, leaving the seratonin production at low levels after use, and permanently damaging them sometimes from extreme levels of seratonin and melonin. usually leading to depression and other mental problems.
in conclusion any kind of alteration of the brain or unnatural manipulation of the brain in, excess, can lead to alteration of brain signal/chemical processing in the long run.
This post was edited by xx_puner_xx on Apr 12 2013 01:10pm