The error negativity in nonmedicated and medicated patients with Parkinson's disease.

@article{Stemmer2007TheEN,
  title={The error negativity in nonmedicated and medicated patients with Parkinson's disease.},
  author={Brigitte Stemmer and Sidney J. Segalowitz and Jane Dywan and Michel Panisset and Calvin Melmed},
  journal={Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology},
  year={2007},
  volume={118 6},
  pages={1223-9}
}
OBJECTIVE It has been hypothesized that the error negativity (Ne or ERN) is modulated by the midbrain dopaminergic system. Thus, in a depleted dopaminergic system as seen in patients with Parkinson's disease (PD) one would expect an attenuated Ne. However, studies investigating the error negativities in medicated patients with PD have produced contradictory results and the present study was designed to explore this relationship further. METHODS Using the event-related potential technique and… CONTINUE READING

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