Maximum Z-score maps from 3 individuals compared to a group of healthy controls using the Neurostat software. Surface projections display the Z-score maps from lateral, superior, inferior, anterior, posterior, and medial views. The images are scaled from -4.0 to 4.0 in Z-scores with the warm colours representing areas that are more active than the control group, and the cold areas representing areas that are less active. Subject a) was evaluated as normal, subject b) as possibly abnormal, and subject c) as abnormal. The arrows point to significant reductions in the medial frontal cortices.