a. Proportion of discrimination errors as a function of objective time difference between the two images (Δt), averaged across all trials separately for each PE-type. Shown is main effect of Δt (F5,90 = 21.1, p <10−13, η2 = 0.5) but there was no difference between PE-types (F2,36 = 0.59, p = 0.55) or Trial-type (F1,18 = 3.4, p = 0.078), as seen in the main experiment. b. Proportion of discrimination errors as a function of PE-type and Trial-type. An interaction between PE-type and Trial-type (PE-Type x Trial-type: F2,36 = 6.77, p = 0.003, η2 = 0.273). SL trials: mean PE+ = 0.38, mean PE- = 0.48, mean PE0 = 0.41. Better performance in PE+ vs. PE- (p=0.03, Cohen’s d = 0.64). LS trials: mean PE+ = 0.4, mean PE- = 0.3, mean PE0 = 0.32. Worse performance in PE+ vs. PE- (p=0.07, Cohen’s d = 0.54). Inset: Performance after correcting for individual Time-Order Error (TOE). c. Proportion of discrimination errors as a function of time difference between images (Δt), separately for LS and SL trials. PE+ and PE- bias performance in opposite directions. d. Proportion of discrimination errors as a function of individual Just-Noticeable-Difference (JND), fitted to a logistic function after JND normalization. Error bars represent SEM (n=19).