Superimposed RF-centers for simultaneously recorded LERG and MUA. Superimposed RF centers of the simultaneously recorded retinal LERG- (open circles) and MUA-RFs (filled circles) in Fig. 2. The black cross denotes the area centralis position. Gray arrows approximate the trajectories of ganglion cell axon bundles (reconstructed from ). Each color codes one retinal electrode. Note that MUA-RFs are shifted distally from the corresponding LERG-RFs with respect to the optic disk.