Table 2

Main regional foci of brain activation, with periodic signal maximum during non-word rhyming in the control group

	Number of voxels	Talairach coordinates (mm)			Max FPQ	Prob (max FPQ)
	Number of voxels	x	y	z	Max FPQ	Prob (max FPQ)
x, y, and z refer to the stereotactic coordinates³⁶ of the voxel within each cluster with the largest fundamental power quotient (FPQ, reflecting the significance of periodic change), and Prob (max FPQ) indicates the probability of false activation. The reference point for the coordinates is the junction of the vertical anterior commissural line and the intercommissural line. The reference plane is the bicommissural plane. x refers to millimetres left (−) and right of the reference point, y to millimetres anterior and posterior (−) to the reference point, and z to planes above and below (−) the reference plane.
Left hemisphere
Precuneus	103	−6	−50	48	2.0	0.000004
Peristriate cortex	101	−20	−81	−7	1.9	0.000004
	8	−29	−83	4	1.5	0.000423
Parastriate cortex	31	−40	−64	−13	1.7	0.000022
	8	−32	−69	26	1.6	0.000288
Superior frontal gyrus	26	−6	8	48	1.7	0.000026
Precentral gyrus	23	−40	−6	48	1.6	0.000052
	14	−40	−3	31	1.6	0.00007
Retrosplenial cortex	10	−20	−31	−2	1.6	0.000052
Inferior frontal gyrus	6	−43	8	31	1.6	0.000353
Insula	5	−46	3	−2	1.6	0.000362
Putamen	5	−14	3	−2	1.6	0.000240
Right hemisphere
Post cingulate gyrus	34	3	−67	20	1.7	0.000004
Precuneus	33	3	−58	31	1.7	0.000013
	23	3	−56	37	1.6	0.000057
Peristriate cortex	86	0	−67	9	1.9	0.000004
	32	3	−61	26	1.8	0.000004
	23	12	−47	4	2.0	0. 000004
Medial frontal lobe	18	6	42	−2	1.6	0.000288
Insula	12	40	19	9	1.6	0.000074
Ant-mid cingulate gyrus	7	9	−11	42	1.6	0.000126
Superior frontal gyrus	6	3	−11	59	1.6	0.000179
Superior temporal gyrus	6	49	−31	9	1.6	0.000392