Electrophysiological correlates of psychogenic disorders

Spectral characteristics of the EEG were analyzed in three types of psychogenic disorders: depressive states and hysterical and anxiety disorders. In all patients examined, the common feature was a predominant activation of the right hemisphere. In each type of psychogenic disorder, characteristic features, i.e., EEG correlates of functional changes in diencephalic and ventrobasal brain structures, were found.