[Bioelectical activity of the brain in parkinsonism before and after stereotaxic operations]

The bioelectrical activity of the brain was studied in 85 patients. The bioelectrical potentials were recorded directly from the cortex of the cerebral himispheres and the subcortical structures of the brain. Clinical and electroencephalographic comparisons were made. Functional reorganization of bioelectrical potentials after stereotaxic operations is shown.