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

Table 4

Significant clusters of activation for the conjunction analysis of the tasks’ pair “Imagery of the affected hand” (IA) and “Pinching with affected hand” (PA). Single-voxel uncorrected threshold 𝑃<0.005 cluster size ≥15. BA: Brodmann area at given coordinates.

Conjunction analysis IA and PA	Regions	BA	^#Voxels	𝑇peak	MNI
					𝑥	𝑦	𝑧
Non-lesioned brain side	Inferior parietal lobule		68	4.45	−33	−51	51
	Precentral gyrus	6^79	49	4.74	−24	−12	57
	Inferior parietal lobule		28	3.74	−60	−30	42
	Supramarginal gyrus			3.51	−60	−36	36
	Thalamus		25	4.17	−15	−12	6
	Superior parietal lobule		23	3.42	−21	−57	60
	Precentral gyrus	6^48	18	3.50	−54	0	36
	Inferior frontal gyrus (p.opercularis)	44^79	17	3.26	−57	9	15
Lesioned brain side	Precentral gyrus	6^78	48	4.34	42	−9	57
	Thalamus		39	4.45	6	−27	0
	Insula		36	3.66	45	3	9
	Supplementary motor area	6^93	25	4.40	9	−6	60

^#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).