Erratum to: Exp Brain Res DOI 10.1007/s00221-012-3089-5

The following Acknowledgments were inadvertently left out of in the original publication:

Financial support: TRM: Royal Society, Marie Curie Actions; CB: Marie Curie Actions; AF: ANR, FRM, James S. McDonnell Foundation. We would like to thank P. Fattori for a helpful discussion.