FIGURE 2.

Temporal dynamics of learning of probability-based regularities across epochs and sessions in the (A) TD group and (B) TS group. Dashed lines represent the TD group, continuous lines represent the TS group. RT values as a function of the epoch (1–10) and trial types (random high vs. random low) are presented. Blue lines with triangle symbols indicate RTs on the random high trials, green lines with square symbols indicate RTs on the random low trials. Learning is quantified by the gap between blue and green lines; the greater gap between the lines represents better learning. Error bars denote standard error of mean.