Fig. 1.

Left: Illustrative EEG layout used in sessions $S_2^{+2,+3}$. The EEG electrodes avoided incision sites used for DBS electrode implantation. In sessions $S^c$, a full EEG layout was used. Right: The experimental setup and design of the copy-draw test, as composed by (a) single trial trace consisting of three (b) trace atoms, (c) get-ready box, and (d) starting point of the trace.