Skip to main content
. 2013 Oct 3;7:133. doi: 10.3389/fncom.2013.00133

Figure 7.

Figure 7

The MOT filters out noise to improve behavioral performance. This figure shows the firing rates of all MOT neurons for a single trial. During low DA (A–C), optimal DA + high NE (F) and optimal NE + high DA (H) conditions, working memory in the PFC is extremely noisy and it is difficult to differentiate which of the columns would correctly drive the motor response (D,E,G,I do not show significant noise). As can be seen in this figure, however, some of this noise is filtered out in the MOT with lateral inhibition. Lateral inhibition allows the initially strong response from the preferred direction (blue, in these cases) to dominate and win out over other directions. This suggests that lateral inhibition may be a means for the MOT to improve behavioral performance even noise in the PFC is high. Firing rates were smoothed using a simple moving average.