Chemical Structures Of Hallucinogens
“That the important plant hallucinogens and the brain hormones serotonine and noradrenaline have the same basic structure cannot be due to mere chance. This astounding relationship may explain the psychotropic potency of these hallucinogens. having the same basic structure, these hallucinogens may act at the same sites in the nervous system as the above-mentioned brain hormones, like similar keys fitting the same lock. As a result, the psychophysiological functions associated with those brain sites are altered, suppressed, stimulated, or otherwise modified. The ability of hallucinogens to produce changes in brain function is due not only to their having a particular chemical composition, but also to the peculiar spatial arrangement of the atoms in their molecules.”
Plants of the Gods richard evans schultes and Albert hofmann