Pairwise discrimination rates using a biomemetic model matches inferior colliculus (IC) neurons. Comparing discrimination accuracy between IC neurons (top) and artificial neurons (bottom) in three clutter conditions: No Clutter, 10 cm, and 20 cm shows similar trends: decreased discrimination accuracy in close clutter conditions, and enhanced accuracy in far clutter conditions. Cyl, cylinder; LD, large dipole; SD: small dipole; SS, small sphere.