Figure 3: (a) Regions of interest (ROI) and connectivity model used for estimating interregional connectivity. Scans from patients with right-sided lesions were flipped, so that all patients were assumed to have left hemispheric lesions. (b) Task-dependent modulations of connectivity during movements of the affected and unaffected hands. Positive (green) values refer to the promotion of neural activity. Negative (red) values mean the inhibitory influence on neuronal activity. IL: ipsilesional hemisphere; CL: contralesional hemisphere.