Dual-tDCS and Anodal PMC tDCS Over the Contralesional Hemisphere on the Upper Limb Function in Stroke Patients

In the M1- dual tDCS montage, the anodal electrode will be placed above ipsilesional M1 and the cathode will be positioned over contralesional M1.

In the anodal-tDCS for PMC, the anodal electrode will be placed over the contralesional PMC. The PMC is defined as being 2.5 cm anterior to the M1. The cathodal electrode will be positioned over the contralateral suborbital region

For sham stimulation, there is no particular electrode configuration to be followed, thus, 6 participants will receive sham stimulation with the configuration will be used in group A, and 5 participants will receive sham stimulation with the configuration will be used in group B. By pressing the sham button, the current will automatically ramped up over 10 sec. till reaching 1 mA, then it will be decreased gradually over 30 seconds till turning off the apparatus. This is to ensure the typical initial itching sensation