Proportion of discrimination errors as a function of trial type (Long-Short; LS or Short-Long; SL) and (Δt). a. Left: For the raw data, there is a larger difference in performance between LS and SL trials for small Δt (“hard” trials, Δt < 67 ms) compared with large Δt (“easy” trials; mean difference = 0.2 in “hard” and 0.08 in “easy” trials), resulted from significant interaction between Trial-type and Δt (F4,208 = 11.3, p < 10−7, η2 = 0.175). Right: Data corrected for TOE shows similar performance differences between the different levels of Δt for LS and SL trials (F4,208 = 0.75, p = 0.55). b. Separated according to group (before correction to TOE). TOE occurred in all groups, and was therefore corrected for all (see top-right). Error bars represent SEM (n=18, 35 for behavior-only and imaging groups, respectively).