In the article “Activation of Meningeal Nociceptors by Cortical Spreading Depression: Implications for Migraine with Aura” by XiChun Zhang, Dan Levy, Rodrigo Noseda, Vanessa Kainz, Moshe Jakubowski, and Rami Burstein, which appeared on pages 8807–8814 of the June 30, 2010 issue, there was an error in Figure 6A. The second bar should have been dark instead of white. A corrected figure is published below.
