Figure 12.

Simulation of the DSKL model (Model 3c) for observer JP. (A) Binocular combined contrast (solid black curve) predicted from the DSKL model when interocular contrast ratio varies and the base contrast, the maximum of two eyes' contrast, is 48% (see Figure 2). The two eyes' input contrast (dashed blue curve: left eye; dashed red curve: right eye) and their model outputs (apparent contrast) (solid blue curve: left eye; solid red curve: right eye) predicted from Model 3c after interocular interaction are also shown. The black vertical short bar shows the ratio at which the RE's contrast reaches the gain-control threshold g_c, and the red vertical short bar shows the ratio at which the RE's contrast reaches the gain-enhancement threshold g_e in Model 3c. The horizontal dotted black line indicates half of the base contrast (0.24). (B) The left eye's model output (apparent contrast) (normalized by base contrast) predicted from the DSKL model when the base contrast is 96% (red), 48% (black), 24% (green), 12% (yellow), 6% (magenta), or 3% (blue) and interocular contrast ratio, RE/LE, varies from 0.125 to 8. Left eye's input contrast is also shown (blue dashed line).