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. 2014 Dec 22;9(12):e115772. doi: 10.1371/journal.pone.0115772

Figure 1. Complete Design of the Composite Face Task.

Figure 1

In each face pair, the first composite face is the study face, and the second composite face is the test face. Participants have to attend to the top half shown with a white background and neglect the irrelevant bottom half shown with a gray background. In the congruent condition, the study and the test face halves are either the same or are both different. The task-relevant half (upper) is shown with a white background, and the irrelevant face half (lower) is shown with a gray background. In the congruent condition, the study and test face halves (i.e., cued and irrelevant halves) are either both the same or different. In the incongruent condition, the corresponding top or bottom halves of the study and test faces are the same, and the corresponding irrelevant face halves are different.