A study out last year from the Imperial College of London shows that our brains display a similar pattern of activity during dreams as it does during a mind expanding drug trip. This study found that while dosed with psilocybin, the psychoactive compound in mushrooms, activity in the more primitive brain network linked to emotional thinking became considerably more pronounced.
Drugs (if you can even call them that) that have psychedelic reactions when taken can profoundly experience the way we see the world. This new research, published in Human Brain Mapping, has examined the brain effects of psilocybin, using data from the brain scans of volunteers injected with the compound.
“What we have done in this research is begin to identify the biological basis of the reported mind expansion associated with psychedelic drugs"...
