Fig. 6
Isolating the PII response. A The rod modeled PIII response (black dashed line) is subtracted from the rod response (following subtraction of the cone (photopic) response) (black line) to give the PII response (shown in A for the 180 cd/m2 flash stimulus on the 0 cd/m2 background). The method is applied to the ERG at 0 (no background) 0.01, 0.1, 1 cd/m2 backgrounds with stimuli strengths of B 2.5 cd/m2. C 25 cd/m2. D 180 cd/m2. E 500 cd/m2. F 1,250 cd/m2. Representative results are shown, and background luminance is denoted by different colors and line styles as indicated in the legend in B