Figure 1.

Experimental design. The experiment consisted of a study phase on the first day (day 1) and two subsequent memory tests on the consecutive day (day 2). In the study phase, participants were scanned while they incidentally encoded 150 complex scenes. The study phase was divided into three runs with 50 trials each. Around 24 h later (day 2), participants were given a surprise memory test for written gist descriptions of scenes with subjective confidence ratings on a visual analog scale (i.e., 1–100%) randomly intermixed with lures. Next, they were given a second memory test assessing how many details were accurately remembered for each scene (see Materials and Methods for more details).