Figure 6.

Spike synchrony and spike onset latency are not affected by direction of stimulus movement along the nonselective axis. Cross-correlograms for spiking of neighboring pair of ON DS cells to the back-and-forth movement of the slit of light along the nonselective axis (orthogonal to the preferred/null axis). In contrast to slit movement along the preferred/null axis, the direction of movement along the orthogonal axis did not affect spike synchrony, as indicated by no change in the peak at time 0 (dashed white line).