[Relation of electrophysiological indices in various degrees of negative disorders in patients with schizophrenia]

Preliminary results of the investigation of "expectation wave" phenomenon in 25 schizophrenic patients aged 17 to 41 years (20 or less years since the onset of the disease) are presented. The control group consisted of 10 healthy persons. The characters of evoked responses in patients and normals were essentially different. The decrease in the energy of potentials was found in lower frontal brain leads which was most pronounced while fulfilling a "motivational" task, and in patients with the history of the disease over 10 years. The data are consistent with the literature indications on the morphological disorders and metabolism reduction in the frontal lobes of schizophrenic patients.