Modulation of frontal and parietal neuronal activity by visuomotor learning. An ERP analysis of implicit and explicit pursuit tracking tasks

Visuomotor learning was mainly achieved by a continuous reduction of target and cursor distance. A fronto-central positive ERP component related to the execution of a directional change increased earlier after learning. This indicates an anticipated directional change, improving task performance. ERP activity after error corrections decreased after learning, indicating either a higher efficiency or a reduced demand in visual feedback control. Activity difference was shifted from parietal to fronto-central sites later indicating a relation to improved feedforward control. No clear difference between implicit and explicit learning was observed for behavioural and ERP data.