Figure 1.
Average amounts invested in Untrustworthy and Trustworthy face identities with “Good” and “Bad” behavioral histories.
Note that behavioral histories are represented on two different scales: the blue scale corresponds to Bad history trials; the green scale corresponds to Good history trials. Main effects of both behavioral history and face identity were significant. Error bars represent standard error.
Figure 2.
Face identities of the same computer character varied on the trustworthiness scale. For each character, we selected the faces found at −3 and +3 SD on the trustworthiness scale (indicated here with arrows). In Study 3, we altered some of the selected faces to ensure direct gaze for all stimuli.
Figure 3.
Examples of the trustee behavioral histories shown to participants in Study 2. (A) Behavioral history from a “Bad” history trial with two very low (white boxes), five medium-low (light blue), two medium-high (intense blue) and no very high (dark blue) return rates. (B) Behavioral history from a “Good” history trial.