TABLE.

Imaging results

Anatomical / functional region	MNI coordinates			Peak voxel	Peak voxel	Cluster
	X	Y	Z	Z-score	T-score	P-value
Simple effect grip > nogrip (irrespective of TMS)
R. primary motor cortex/dorsal premotor cortex	38	-22	54	4.85	10.29	<0.001
R postcentral sulcus	40	-34	54	5.56	15.37	<0.001
supplementary motor area / cingulate motor area	2	-4	54	5.28	13.05	<0.001
BL supplementary motor area	0	-4	70	5.07	11.62	<0.001
BL cingulate gyrus	0	-22	48	4.42	8.17	<0.001
R posterior superior parietal cortex	8	-78	52	3.79	5.90	0.002
R posterior intraparietal sulcus	24	-74	30	5.02	11.32	<0.001
R ventral premotor cortex	54	6	38	4.35	7.87	<0.001
L parieto-occiptal junction	-24	-86	26	3.79	5.91	<0.02
L superior parietal cortex	-26	-60	54	4.33	7.79	<0.001
R thalamus	8	-12	10	3.92	6.31	<0.02
Simple effect nogrip > grip (irrespective of TMS)
L medial frontal gyrus	-32	28	52	4.93	10.75	<0.001
R medial frontal gyrus	32	36	50	4.32	7.74	<0.01
Simple effect TMShigh > TMSlow (irrespective of grip)
R inferior temporal gyrus	46	-20	8	3.80	5.93	<0.05
L precentral sulcus	-18	-16	62	3.21	4.40	<0.05 π
Simple effect TMSlow > TMShigh (irrespective of grip)
R anterior inferior parietal cortex	54	-58	42	4.48	8.44	<0.005
L superior parietal cortex	-26	-46	66	4.35	7.87	<0.05
Interaction (TMShighnogrip - TMSlownogrip) - (TMShighgrip - TMSlowgrip)
R precentral gyrus	34	-16	58	4.58	8.88	<0.05
R central sulcus	36	-26	62	4.11	6.93	<0.05

Height threshold of T > 4, uncorrected for multiple comparisons across whole brain, and extent (or cluster) threshold set at P < 0.05, corrected for multiple comparisons across whole brain

^πp < 0.05 cluster level corrected for multiple comparisons across whole across small volume of interest in a priori defined area of stimulation