Venn diagram showing for each task (A-C) the number of neurons categorized as follows: displaying significant positive correlation between r_mean and FF, having FF > 3 under the preferred stimulus, having FF under the preferred stimulus higher than those in the foreperiod and under the least preferred stimulus (termed “Increased FF under pref stim” in the figure), and the combination of intersections between all three categories. The total number of well-tuned neurons and those that are in none of these categories are also shown. Numbers in each segment are exclusive.