Fig. 2.

Portion of the right caudate where voxel-based morphometry showed statistical differences between 10 controls and 10 adults with attention deficit hyperactivity disorder (left) in men and (right) women. The statistical parametric mapping (SPM) projection over the Montreal Neurological Institute T1 template is shown. The SPM contrast was set at a p value threshold of 0.01 and a voxel threshold of 20. The settings for small volume correction in men with a volume-of-interest search were a radius of 5 mm at global maxima of x = 21, y = 9, z = 18, and the settings in women were a radius sphere of 5 mm at global maxima of x = 17, y = 0, z = 25.