. Author manuscript; available in PMC: 2012 Jun 1.
Published in final edited form as: Nat Neurosci. 2011 Nov 6;14(12):1574–1580. doi: 10.1038/nn.2958
Users may view, print, copy, download and text and data- mine the content in such documents, for the purposes of academic research, subject always to the full Conditions of use: http://www.nature.com/authors/editorial_policies/license.html#terms
Fig. 3.
