In the article “Modular Realignment of Entorhinal Grid Cell Activity as a Basis for Hippocampal Remapping,” by Joseph D. Monaco and Larry F. Abbott, which appeared on pages 9414–9425 of the June 22, 2011 issue, there were two errors: (1) “Larry F. Abbott” should have read “L. F. Abbott”; (2) the left side of Equation 3 should have read “τṙ” instead of “τr”.
