Mean discriminability scores and response bias for Experiment 1 (collapsed across time delay; a and c) and Experiment 2 (collapsed across past and future simulation; b and d), by simulation valence (positive, negative, no simulation) and valence of detail presented at recognition (positive, negative). Higher d′ values indicate more accurate responses. Higher C values indicate more conservative responses. Error bars depict standard errors. Asterisks indicate significant differences between conditions (*p < .05, **p < .01, ***p < .001).