Spatial release from masking (SRM) are shown for the Symmetrical condition, as the difference in SRTs when the interfering speech sounds were both in front vs. one on the right and one on the left, at 90°. SRM alues are plotted in dB, as a function of the number of months of bilateral experience. Each child’s data are shown in one symbol type. The mean (+/− SD) values shown for each testing interval with the filled circles in each panel. To the right of the vertical line, data are replotted with permission from Misurelli and Litovsky (2012), taken from children with normal hearing (NH).