Figure 2From: Abnormal social reward processing in autism as indexed by pupillary responses to happy facesDifferential (i.e., direct-averted) pupillary response time course for TD and ASD groups. The ASD group is displayed in the top graph, and the TD group is shown in the bottom graph. TDs showed significantly larger responses to the happy faces (red) with direct gaze compared to averted gaze (paired t-test, p < 0.05 marked by circles)Back to article page