Correction to: Nature Neuroscience https://doi.org/10.1038/s41593-018-0110-8, published online 12 March 2018.

In the version of this article initially published, the blue diamonds in Fig. 2a–d were defined as Shank3+/Δc + saline; the correct definition is Shank3+/Δc + RMD. The error has been corrected in the HTML and PDF versions of the article.