show the corresponding best-ITDs across CFs. To facilitate visual comparisons, the ITD axis was binned using 30 equally spaced intervals while the frequency axis was binned using 7 equally spaced bins of 100 Hz. The distribution of best-ITDs in the human is remarkably similar to that of the macaque (cf. D and F) in which best-ITDs follow a V-shape near the maximum range of ITDs encompassed by the head size of each species (indicated by the red lines).
