A Brief Survey of Entheogenic Foods and Their Possible Roles in Human Evolution

Can't give you a title or page number but I remember reading some speculations by Terrence McKenna regarding the possible evolutionary advantages of eating small amounts of psychedellic mushrooms. He claimed that in small doses psyllocin and/or psilocybin could improve eyesight and concentration which would of course be useful for early hunters. Of course none of the effects of the mushrooms would be passed on to offspring but one could speculate that a tribe with a tendancy to experiment with mind altering substances might have an advantage over one that stayed away from such things. It seems a little far-fetched to me. I don't know how such tendencies would translate into instincts and DNA but it seems to be commonly accepted that they do. I would be more likely to guess that the advantages came from psychic abilities which are still not well understood. BTW I'm a newbie here, hi everybody.