Fig. 3.

Voxels associated with greater activation in obsessive compulsive disorder (OCD) patients compared to controls when stopping but reduced activation in OCD patients compared to controls when shifting. (a) Areas showing this pattern of activation are displayed overlaid on the MNI brain. Images are displayed at x = −12, y = −6 and z = 16 in the sagittal, coronal and axial planes, respectively, with a voxel-wise threshold of p < 0.05 family-wise error corrected. Colour bars represent t scores. (b) Region-of-interest post-hoc analysis of activity for stop and shift trials in control and OCD patients groups in the caudate bilaterally. Error bars represent s.e.m..