[Short-latency brain stem evoked potentials to acoustic stimulation in psychogenic disturbances].

Short-latent stem evoked brain potentials in response to acoustic stimulation (SSEP to AS) as a research method was used to examine 27 patients with psychogenic disorders. The data obtained have shown that the SSEP curve underwent changes in the form of inhibition, fractionation, and lengthening of the components. Significant correlations were obtained between changes in SSEP in response to AS and the presence of not deep residual-organic disturbances, so-called "ground" in psychogenic disorders. The data obtained make it possible to suggest the use of SSEP in response to AS as an additional electrophysiological method for identification of the latent residual-organic "ground" for psychogenic disorders, which will favour the most adequate treatment of this patient's group.