In the Supplementary Data of the article cited above, there is an error in Supplementary Fig. 2. The data point label for tRmax (beneath the x-axis) “tRmax = time of half-maximum GIR” should read “tRmax = time of maximum GIR.” In addition, the block blue color that fills the area under the curve should not extend beyond the x-axis. The corrected Supplementary Fig. 2 appears below. The online version reflects these changes.