 They're often called Christmas tree hallucinations, and our imaging studies showed remarkably that what's going on there is that the mushroom juice, the psilocybin, is actually detaching the part of the visual cortex which begins the process of seeing from the rest of the visual cortex, which culminates in the process of seeing. But then we found in other parts of the brain, particularly the frontal parts of the brain, where most of the creation of our senses