Fig. 5. The density of EphA receptor in the axons innervating a particular collicular location, for the six cases considered. (A-F) Plots of the experimental data shown in Fig. 4A-F after converting retinal position into EphA receptor density using the empirical relationships given in Fig. 2. (G-L) Plots obtained from the simulation data shown in Fig. 4G-L in a similar way. The black lines show cubic fits to the data.