Correction to: Neuropsychopharmacology advance online publication, 2 January 2008; doi:10.1038/sj.npp.1301660

In this article, the affiliation of Dr E Kuteeva is incorrect; the correct affiliation is as follows:

Department of Neuroscience, Karolinska Institutet, Retzius väg 8, Stockholm S-171 77, Sweden.