[Possibilities of measurement of impedance by the use of long-range intracerebral electrodes].

An investigation of constituents in the complex (overall) resistance of deep-lying brain structures of patients with hyperkinesis treated by employing implanted electrodes helped disclose some specific features common to the impedance of conduction pathways, ventricles and some basal ganglia. The actual value of the impedance depends upon the technical peculiarities of the method. The latter does not permit it to identify the position of the electrodes amidsts various cellular structures, but is of a definite value in defining more accurately the localization of electrodes and in identifying them.