Spared error-related potentials in mild to moderate Parkinson's disease.


Several lines of evidence indicate that people with Parkinson's disease are impaired at detecting their own motor errors. In the present study, we use a component of the event-related brain potential called the error-related negativity (ERN) to ask whether a high-level, generic error-processing system is compromised in Parkinson's disease. We recorded the… (More)