Figure 5: Contralaterality indices (CIs) of all the subjects. All the CIs for normal subjects and for unaffected-hand grasping of the patients were above 0, which indicates contralateral-predominant activation. CIs for moderately paretic hand grasping were classified into 2 groups, i.e., three patients with bilateral activation (CIs were around 0; Patients No. 3, 4, and 6) and ipsilateral-predominant activation (CIs were below 0; Patients No. 1, 2, and 5). Squares, left hand grasping; Circles, right hand grasping; Filled symbols, affected-hand grasping.