Figure 3. .

Performance: Draws to decision and accuracy according to block and group. A) Mean number of draws to decision in the four blocks of the task. On mixed-model ANOVA, there were significant main effects of block, F(3) = 94.49, p < 0.001, and of group, F(1) = 5.99, p = 0.017, and an interaction between group and block, F(3) = 4.32, p = 0.006, with group differences in Block 1, p = 0.007, and Block 2, p = 0.03. B) Probability of being correct (accuracy) at the time of making the decision in four task blocks. Here there was an effect for block, F(2) = 93.73, p < 0.001, a marginally significant interaction between Block ⋅ Group, F(2) = 2.52, p = 0.086 and a significant groups effect, F(1) = 4.14, p = 0.047.