TY - RPRT TI - Bilateral subthalamic nucleus stimulation improves frontal cortex function in Parkinson's disease. An electrophysiological study of the contingent negative variation. AU - W Gerschlager AU - F Alesch AU - R Cunnington AU - L Deecke AU - G Dirnberger AU - W Endl AU - G Lindinger AU - W Lang PY - 1999 DO - 10.1093/brain/122.12.2365 UR - https://pubmed.ncbi.nlm.nih.gov/10581229/ ID - 10581229 ER -