Figure 6.

Hypothetical neuronal pathway for smooth pursuit stopping. The FEF projects indirectly (dashed line) to premotor neurons driving pursuit (PNs) that activates OMNs. The SEF interacts with the FEF during anticipation and pursuit initiation (double-headed arrow). Pursuit stopping could occur when termination neurons of the SEF increase their activity. These neurons are connected with OPNs through a direct excitatory synapse (open circle). OPNs inhibit premotor pursuit neurons (PNs; filled circle). In this schematic diagram, the inhibitory connection between OPNs and PNs is hypothetical but is supported by results presented in figure 5. Shaded areas correspond to the shaded areas in figure 2b.