Fig. 3.

Stimulation of the nigra during the visual, delay, and presaccade intervals in the memory-guided saccade task. The mean saccadic endpoints for each of the 28 experiments from 2 animals are plotted. Different colors indicate different target positions. The size of the circles indicates the frequency of the endpoints that were within 5° of the target location. Triangles show the data points for the example data shown in Fig. 2. A: endpoints when no stimulation occurred (control). B: endpoints when stimulation occurred during the visual interval. C: endpoints when stimulation occurred during the delay interval. D: endpoints when stimulation occurred during the presaccade interval. Data are taken from correct trials.