Fig. 1.

Group differences in regional grey matter volumes. Grey matter (GM) reductions in autism spectrum disorder (ASD) subjects relative to healthy controls in the anterior cingulate cortex, bilateral posterior superior temporal sulcus and right middle temporal gyrus. Areas of significant decrease in GM volume (99 % confidence for group differences greater than the background noise) are shown superimposed on a MNI single-subject template. Lighter colours represent higher probabilities for group differences