Tonotopic dependence of interaural place mismatch for A–E, BI-CI subjects, and F–J, SSD-CI subjects. The first and third rows reference the mismatch to the clinical map, based on A–C, the insertion angle associated with the number-matched electrode for BI-CI subjects, or F–H, the insertion angle associated with the reference electrode CF for SSD-CI subjects. The second and fourth rows (D, E and I, J) reference the mismatch to the CT estimate of electrode position. Points represent mismatch measurements for individual electrodes; fitted curves represent estimates of the group average and 95% confidence interval. Horizontal dashed lines indicate zero mismatch.