Mechanism of hallucinogens' effects discovered / EurekAlert!, 31 January 2007
http://www.eurekalert.org/pub_releases/2007-01/cp-moh012507.php
Erin Doonan
"The brain mechanism underlying the mind-bending effects of hallucinogens such as LSD, mescaline, and psilocybin has been discovered by neuroscientists. They said their discoveries not only shed light on the longtime mystery of how hallucinogens work, but that the findings also offer a pathway to understanding the function of drugs used to treat neuropsychiatric disorders, which are now being used largely without an understanding of their fundamental mechanism."

Hallucinogens Recruit Specific Cortical 5-HT2A Receptor-Mediated Signaling Pathways to Affect Behavior
Neuron, Vol 53, 439-452, 01 February 2007
http://digbig.com/4rqcg
Javier González-Maeso, Noelia V. Weisstaub, Mingming Zhou, Pokman Chan, Lidija Ivic, Rosalind Ang, Alena Lira, Maria Bradley-Moore, Yongchao Ge, Qiang Zhou, Stuart C. Sealfon, and Jay A. Gingrich [Sub required]