 The wide range of psychedelic effects can be variously described as depressant , sedative @-@ hypnotic , dissociative , and deliriant ; paradoxical effects may occur . Perceptual phenomena such as macropsia and micropsia may occur , which may have been the inspiration for the effect of mushroom @-@ consumption in Lewis Carroll 's Alice 's Adventures in Wonderland , although " no evidence has ever been found that linked Carroll to recreational drug use " . Additionally , A. muscaria cannot be commercially cultivated , due to its mycorrhizal relationship with the roots of pine trees . However , following the outlawing of psilocybin mushrooms in the United Kingdom in 2006 , the sale of the still legal A. muscaria began increasing . 
