Percentage of azimuth-tuned neurons (A and C) and their mean vector strength and SE (B and D) to binaural stimulation as a function of sound source distance (10–160 cm). A and B: anechoic and moderately reverberant matched neurons. C and D: anechoic and highly reverberant matched neurons. Sample size for the anechoic and moderately reverberant matched neurons: 10 cm (n = 43), 20 cm (n = 29), 40 cm (n = 24), 80 cm (n = 81), and 160 cm (n = 59). Sample size for the anechoic and highly reverberant matched neurons: 10 cm (n = 35), 20 cm (n = 14), 40 cm (n = 14), 80 cm (n = 50), and 160 cm (n = 42).