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Significant brain activations in the (A) healthy subjects at the AM condition; (B) stroke subjects in the AM condition; and (C) stroke subjects in the PM condition. The threshold was P<0.001 (uncorrected) at the voxel level with cluster size >20 voxels. SMA, supplementary motor area; IFG, inferior frontal gyrus; STG, superior temporal gyrus; SupG, supramarginal gyrus; MFG, middle frontal gyrus.
