It has come to our attention that there is an error in the Acknowledgements section of our article . The Acknowledgements section should read:
We are grateful to Ms. Melanie Glaser for excellent technical assistance. We are grateful to Douglas A. Bayliss for providing K2P9.1-/- animals. This work was supported by the Interdisziplinäres Zentrum für klinische Forschung (IZKF A-54-1) to SGM and HW, the DFG (SFB 581, TP: A10) to SGM and DFG K2P-Forschergruppe 1086 (BU1019/9-1 to TB and ME3283/1-1 to SGM) and the Else-Kröner-Fresenius Foundation (2010_A95 to CK and SGM). PE was a member of the Otto-Creutzfeldt-Center for Cognitive and Behavioral Neuroscience Muenster (OCC).