In the article “Foxp1 in Forebrain Pyramidal Neurons Controls Gene Expression Required for Spatial Learning and Synaptic Plasticity” by Daniel J. Araujo, Kazuya Toriumi, Christine O. Escamilla, Ashwinikumar Kulkarni, Ashley G. Anderson, Matthew Harper, Noriyoshi Usui, Jacob Ellegood, Jason P. Lerch, Shari G. Birnbaum, Haley O. Tucker, Craig M. Powell, and Genevieve Konopka, which appeared on pages 10917–10931 of the November 8, 2017 issue, the authors accidentally cited the wrong reference in the Materials and Methods section, right-hand column, line 4, on page 10918, citing Gong et al. (2003) for the Exm1.Cre mice. The correct reference should have been Gorski et al. (2002), as stated in the main body of the article on page 10918, left-hand column, last paragraph, line 3, when referring to these mice. This correction does not affect the conclusions of the article. The full reference citation has been included in the online PDF version.