FIGURE 1.

Example trials of the encoding and test phases. (A) Exemplary trial of the encoding phase. Participants were asked to press a button depending on whether they thought the solution was plausible while experiencing an “aha!,” plausible without experiencing an “aha!,” or implausible during the presentation of the solution. (B) Exemplary trial of the test phase. Participants were asked to decide whether a presented solution was old or new. If an item was judged as old, participants should further differentiate between know and remember, or, if not sure about the solution being old after all, guess.