The 55th Annual Meeting of the American College of Neuropsychopharmacology will be held from December 4-8, at the Diplomat Resort in Hollywood, Florida. The ACNP Annual Meeting is one of the world's leading forums for the exchange of cutting edge scientific information about the brain, behavior, and psychotropic drugs.The American College of Neuropsychopharmacology (ACNP), founded in 1961, is the nation's premier professional society in brain, behavior, and psychopharmacology research. The field of neuropsychopharmacology involves the evaluation of the effects of natural and synthetic compounds upon the brain, mind, and human behavior.