Figure 1.

a, On Day 1, participants encoded 60 word pairs during 10 prescan encoding runs. The fMRI session on the same day consisted of three retrieval tests per word pair. One week later, Day 7, participants were scanned during a follow-up retrieval test. b, Study design. The figure illustrates the key conditions of interest. Of the 60 studied word pairs, items were sorted post hoc according to performance on both Day 1 and Day 7 to form the conditions of interest (for details, see Materials and Methods). ISI, Interstimulus interval; AFC, alternative forced choice; ITI, intertrial interval.