In the article, “Hierarchical Connectivity and Connection-Specific Dynamics in the Corticospinal–Corticostriatal Microcircuit in Mouse Motor Cortex” by Taro Kiritani, Ian R. Wickersham, H. Sebastian Seung, and Gordon M. G. Shepherd, which appeared on pages 4992–5001 of the April 4, 2012 issue, the authors regret an error in Figure 4D, where the plot shown in Figure 5F was accidentally duplicated. There were no errors in the figure legend or in the main text. This error does not affect any of the results, conclusions, or interpretations. The correct Figure 4 has been corrected on the online PDF version and displayed below.
