Correction to: Nature Neuroscience https://doi.org/10.1038/s41593-018-0231-0. Published online 24 September 2018.

In the version of this article initially published, in Fig. 4c, bottom right, the example calcium trace for Fmr1–/– mice was an inadvertent duplicate. The error is in presentation only and does not affect the analysis or results in the figure. A revised Fig. 4c with a different example trace is presented as Fig. 1 below.

Fig. 1
figure 1

Revised Figure 4c.