DBS programming
After overnight-withdrawal from dopaminergic medication, participants performed the antisaccade task (All other DBS parameters (contacts, amplitude, and impulse width) remained unaltered with respect to the chronic DBS program with optimal clinical response in each individual patient (There are recommendations to keep the total electrical energy delivered (TEED) constant between DBS programs by adjustments of stimulation amplitude when changing the pulse frequency (Recently, effects of even lower stimulation frequencies in the theta or delta range on cognitive performance have been reported (