An article in the Guardian (23.1.12) reported some studies using Hallucinogenic Mushrooms it said:
A drug derived from magic mushrooms could help people with depression by enabling them to relive positive and happy moments of their lives, according to scientists including the former government drug adviser, Professor David Nutt.
Two studies, for which scientists struggled to find funding because of public suspicion and political sensitivity around psychedelic drugs, have shed light on how magic mushrooms affect the brain.
Nutt, from Imperial College London, was sacked as a government drug adviser after claiming tobacco and alcohol were more dangerous than cannabis and psychedelic drugs such as ecstasy and LSD.
He believes prejudice and fear have prevented important scientific work on psychedelic drugs. Research began in the 1950s and 60s but was stopped by the criminalisation of drugs and stringent regulations which made the work costly.
“Everybody who has taken psychedelics makes the point that these can produce the most profound changes in the state of awareness and being that any of them have experienced,” said Nutt.
If you are interested in these ideas then you might like to take a look at the work of the Multidisciplinary Association for Psychedelic Studies – http://maps.org/.