Figure 4.

Evolution of internal variables in SNr for trials surrounding the mistake performed by the network on Figure 2C. (A) Reward received at each trial. (B) Activity of four SNr cells at the time reward is received or expected during the trial. These cells are selective respectively for A (blue line), B (green line), C (red line) and D (turquoise line). (C) Striatal inhibition received by these four cells. (D) Competition term received by the same four cells.