Figure 8. Records from unit activated by ipsilateral eye only; unresponsive to stationary spots, influenced by movement in an area temporal to area centralis.

A slit (0.5 deg × 8 deg) moved back and forth transversely with different orientations, as shown to the left. For slit orientations evoking responses only one direction was effective – up and to the right. Stimulus and background intensities as in Fig. 6; time, 1 s.