Correction to: Neuropsychopharmacology (2008) 33, 946–955; doi:10.1038/sj.npp.1301476; published online 20 June 2007

In this article, the names of two authors were misspelled. The correct names are as follows:

Kelly S Sink, Peter J McLaughlin, Jodi Anne T Wood, Cara Brown, Pusheng Fan, V Kiran Vemuri, Yan Peng, Teresa Olszewska, Ganesh A Thakur, Alex Makriyannis, Linda A Parker and John D Salamone.