From this New York Times Article, "Scientists are taking a new look at hallucinogens, which became taboo among regulators after enthusiasts like Timothy Leary promoted them in the 1960s with the slogan 'Turn on, tune in, drop out.' Now, using rigorous protocols and safeguards, scientists have won permission to study once again the drugs' potential for treating mental problems and illuminating the nature of consciousness."
The Hallucinogen of choice for these researchers is psilocybin, the psychoactive ingredient found in magic mushrooms.
Mushrooms containing the active ingredient, psilocybin, grow wild in Balingup, Western Australia.
Read the full New York Times article here