Fig. 4.

Performance in the behavioral task (same/different-face-decision task). Percent correct performance is shown for trials in which different faces were presented (on the left) and same faces were presented (middle and right). Same faces trials comprised either the same face presented in different images (middle) or the same face presented in the same image (on the right). Please note that in 50% of the trials participants saw two different faces and in 50% of the trials participants saw the same face to prevent a response bias. Accordingly, the SameDiff and SameSame trials account for 25% of the trials each. Error bars represent 95% confidence intervals.