Nat. Neurosci. 19, 75–83 (2016); published online 23 November 2015; corrected after print 22 January 2016

In the version of this article initially published, it was stated that the c-fos gene-based TRAP mouse line described in ref. 42 utilized only the c-fos promoter region to drive CreERT2. In fact, that line was generated by CreERT2 knock-in to the endogenous c-fos locus. Accordingly, the sentence “Its induction mechanism and available reporter mouse lines are based exclusively on c-fos promoter activity” has been deleted from the Abstract, and the following sentences have been deleted from the third paragraph of the Discussion: “However, these mice utilize only the c-fos promoter region to induce the reporter fluorescent protein and do not include any of the c-fos enhancers we have characterized. On the basis of our findings, the promoter-only reporters might not faithfully recapitulate the expression characteristics of the endogenous c-fos gene in vivo triggered by sensory or pharmacological stimuli.” The changes have been made in the HTML and PDF versions of the article.