Table 6.

Insomnia Patients Show Less Activation than Controls: Category Fluency Related Brain Activation

anatomical region	Z value	x	y	z
left superior frontal gyrus (BA 10)	3.66	−38	56	−8
left superior frontal gyrus (BA 9–10)	3.95	−18	50	26
left superior frontal gyrus (BA 9–10)	4.18	−14	46	36
left inferior frontal gyrus (BA 45)	3.30	−42	38	−2
left middle frontal gyrus	3.11	−38	20	42
left anterior temporal cortex	3.21	−34	8	−44

Brain regions are listed from anterior to posterior. X, y, and z coordinates (in MNI space) refer to the voxel with the highest level of activation within the activated cluster of voxels, with corresponding Z-value.