In the last decade, researchers at Johns Hopkins University and elsewhere have launched new studies investigating whether psychedelic drugs, from shrooms to LSD to DMT, can treat mental disorders ranging from depression and PTSD to anxiety and obsessive-compulsive disorder. Vox reporters German Lopez and Javier Zarracina surveyed the state of medical research on hallucinogens:
In a recent study, British researchers used brain imaging techniques to gauge how the brain looks on LSD versus a placebo. They found big differences between LSD and the placebo, with the images of the brain on LSD showing much more connectivity between different sections of the mind.
This can help explain visual hallucinations, because it means various parts of the brain — not just the visual cortex at the back of the mind — are communicating during an LSD trip.
This, researchers argued, may show not just why psychedelic drugs trigger hallucinogenic experiences but also why they may be able to help people. "In many psychiatric disorders, the brain may be viewed as having become entrenched in pathology, such that core behaviors become automated and rigid," the researchers wrote. "Consistent with their 'entropic' effect on cortical activity, psychedelics may work to break down such disorders by dismantling the patterns of activity on which they rest."
"The fascinating, strange medical potential of psychedelic drugs, explained in 50+ studies" (Vox)