Figure 10.

Direction selectivity on error trials. A, Directionality of MT responses to sample during correct and error trials. Open circles show DI from the direction range task, and filled circles show DI from the direction accuracy task. Insets, Bar plot shows the average DIs for the two conditions, with no significant difference (p > 0.05, paired t test for both tasks). B, Directionality of MT responses to the test on correct and error trials. The average DI is not significantly different during correct and error trials in either task (p > 0.05, paired t test for both tasks). C, Directionality of PFC responses to sample on correct and error trials. There is a significant decrease in directionality on error trials in the direction range task (p ≪ 0.001, paired t test), but not in the accuracy task (p > 0.05, paired t test). D, Directionality of PFC responses to the test. Average DIs on error trials were significantly lower than that on correct trials in both tasks (range: p < 0.005, paired t test; accuracy: p < 0.05, paired t test). Error bars are ±1 SEM.