Figure 3.
Quadratic regression between ADOS total score (dependent variable) and left postcentral gyrus GMV. The GMV at the trough (10,833mm3) corresponds to almost exactly the mean of GMV of the TD group for left postcentral gyrus (10,980mm3; SD 1316). This suggests that a deviation from the TD mean is associated with increased autism severity (r=0.503, P=0.022).