Fig. 5
From: Ideal-observer model of human sound localization of sources with unknown spectrum

The great circle error for localization of a flat source stimulus (a) as measured experimentally17 and as predicted by the ideal-observer model assuming: (b) no source prior (ISD), (c) a narrow ad hoc prior as in Reijniers et al. 3, the ESC-50 prior in case of (d) binaural SG, (e) ipsilateral SG, (f) the positive SG input.