Nat. Neurosci. 18, 262–271 (2015); published online 19 January 2015; corrected after print 9 February 2015

In the version of this article initially published, there were quotation marks around “encoded” in the first paragraph and around “encode” in the last paragraph of the main text; these have been deleted. The second sentence of the third paragraph read “habituated in a stimulus-selective manner in V1 as SRP developed”; “in V1” has been deleted. The Figure 7d legend began “Failure of SRP induction”; the correct text is “Selective failure of SRP expression.” The sixth paragraph of the Discussion began “Behavioral manifestation of the vidget required V1”; the correct text is “Behavioral expression of the vidget requires V1.” The eighth paragraph of the Discussion included “first, a 'response' pathway that directly mediates the vidget and does not undergo long-term modification, and second, a 'learning' pathway”; “first,” and “second,” have been deleted. The errors have been corrected in the HTML and PDF versions of the article.