Erratum to: Psychopharmacology

DOI 10.1007/s00213-012-2680-6

Unfortunately, in the original publication of this article, the dose formulation was reported incorrectly. The section on Drugs in the “Materials and Methods” section should read as follows:

Drugs

Drugs and placebo were orally administered in size 0 aqua-colored opaque capsules with approximately 200 ml of water. Four identical capsules were administered in each drug session containing lactose monohydrate (Ruger Chemical Company, Linden, NJ, USA) and appropriate quantities of powdered dextromethorphan (Spectrum Chemical, Gardena, CA, USA) or triazolam tablets (Halcion; The Upjohn Company, Kalamazoo, MI, USA). Doses of dextromethorphan are expressed as the base.