47
Figure 3.9 : (Al) and (Bl) Estimated impulse response function (IRF) using a GWN stimu-
lus in dim light for a rod and cone, respectively. Red traces show response with HCN block.
(A2) and (B2) Estimated IRF at bright light intensities for a rod and cone, respectively. (A3)
Shows the IRF predicted frequency responses for rod in dim light and (B3) shows the same
for a cone in bright light. These plots are similar to the frequency response estimated directly
in figure 8 A3 and B3.