Brain Activation in Primary Motor and Somatosensory Cortices during Motor Imagery Correlates with Motor Imagery Ability in Stroke Patients

Table 5

Significant clusters of activation for the comparison between “Pinching with affected hand” (PA) and “Imagery of the affected hand”. For the comparison PA > IA, a single-voxel uncorrected threshold 𝑃<0.005 and cluster size 𝑘≥15 was chosen. BA: Brodmann area at given coordinates.

PA > IA	Regions	BA	^#Voxels	𝑇peak	MNI
					𝑥	𝑦	𝑧
Non-lesioned brain side	Middle occipital gyrus		182	4.94	−39	−90	0
	Inferior occipital gyrus			4.72	−39	−81	−3
	Inferior temporal gyrus			3.26	−45	−66	−9
	Postcentral gyrus		30	4.21	−57	−21	33
	Inferior parietal lobule	2^15		3.07	−51	−27	42
	Precuneus		26	3.72	−15	−54	63
	Superior parietal lobule			3.34	−21	−54	66
	Paracentral lobule	4a^40 4a(les)^15	17	4.84	−3	−36	75
	Precentral gyurs	6^42		4.73	27	−21	66
	Inferior parietal lobule	2^20		3.83	36	−42	51
	Superior parietal lobule	2		3.74	36	−45	57
	Postcentral gyrus	4p^2		3.56	15	−33	63
	Supramarginal gyrus		244	3.37	66	−24	30
	Paracentral lobule	6		3.31	9	−21	72
	Precentral gyrus	6		3.23	42	−15	63
Lesioned brain side	Postcentral gyrus	3b^6		2.95	45	−21	48
	Postcentral gyrus	1^2		3.15	60	−21	48
	Superior frontal gyrus		56	4.02	21	−3	57
	Superior parietal lobule		43	4.20	12	−63	66
	Thalamus		40	4.21	18	−18	12
	Parahippocampal gyrus		35	3.73	18	−12	−21
	Middle occipital gyrus		17	3.09	39	−87	15
	Calcarine gyrus	17^99	16	3.36	15	−96	3

^#Voxels: number of voxels in cluster. MNI: coordinates in the Montreal Neurological Institute standard brain space. 𝑇_peak: maximum 𝑇 score in cluster. The percentage of voxels from the cluster falling within the named region is indicated by the superscripted values (obtained by the SPM Anatomy Toolbox).