Figure 7.
Fine discrimination in a two-choice task with 0% coherence. Color-coded activity of pyramidal cells in a task with two targets separated by 30° at Jsim = 1.0 (A) or Jsim = 1.4 (B). C, Percentage of failing trials versus the angular difference between the two targets for different values of Jsim. A total of 1000 trials are counted in each case. The dashed part of the curve indicates that, because of strong local inhibition, the network is in the spontaneous state on some trials. These trials are excluded from calculating the percentage. Jopp is kept at 1.05 in all panels.