Table III.

Mean and variance for LORETA and PET data across subjects for ratio of cluster/global activity in two regions of interest from the α1 band

Region	Modality	Mean	Variance	Variance/mean
Midlinea	LORETA	0.471	0.016	0.0343
	PET	2.764	0.127	0.0459
Occipital	LORETA	2.307	0.043	0.0187
cortexb	PET	3.025	0.040	0.0133

^aMidline region refers to a significant cluster along the midline, superior to the thalami (green cluster in Fig. 1, row 2, column 11).

^bOccipital cortex region refers to the entire occipital cortex including nonsignificant voxels in MNI axial plane z = −13 (see Fig. 1, row 2, column 5).