Fig. 2

Scatter plots between participant’s age and looking time for the ROIs Activity and Heads. The data are presented for each stimulus condition (a, c: Shared focus; b, d: Mutual gaze) and ROI (a, b: Activity; c, d: Heads) separately. Dots denote individual participants. The red and blue colors correspond to the data of individuals with ASD and TD controls, respectively. n indicates the number of participants. The black line in each panel represents the best linear fit of the data pooled across the two groups of participants, with the equation for that fit being presented in the same panel. ASD autism spectrum disorder, ROI region-of-interest, TD typically developing