Nature Communications 1: Article number: 68 (2010); Published: 7 September 2010; Updated: 31 January 2012.

Jim Mutch, who conducted experiments described in this article, was inadvertently omitted from the author list. The correct author list and contact details for Jim Mutch are as follows:

Hueihan Jhuang, Estibaliz Garrote, Jim Mutch1, Xinlin Yu, Vinita Khilnani, Tomaso Poggio, Andrew D. Steele & Thomas Serre

1Department of Brain and Cognitive Sciences, McGovern Institute, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.