Fig. 2

The experimental setup. (a) The setup comprised a custom-designed multi-pad electrode (1), a stimulator unit (2), and a laptop (3). (b) Technical design of the multi-pad electrode with annotated pads and rows.

The experimental setup. (a) The setup comprised a custom-designed multi-pad electrode (1), a stimulator unit (2), and a laptop (3). (b) Technical design of the multi-pad electrode with annotated pads and rows.