Figure 2.
Experimental protocol: Items are presented sequentially for 1 sec followed by 0.5 sec of blank screen. At random points, the presentation is paused, and a two-alternative forced-choice recognition task is shown. The target (stimulus previously shown) comes from one of the first 10 presented items (main task) or the second to last shown item (two-back task), which is used to filter inattentive participants. The distractor (stimulus not previously shown, or “lure”) is shown in red. Stimulus examples of the noun experiment are shown in A, and examples of the sketch experiment are shown in B.
