DIFFERENTIAL DIAGNOSTIC TECHNIQUE FOR PARANOID SCHIZOPHRENIA AND SCHIZO-AFFECTIVE DISORDER Russian patent published in 2014 - IPC A61B5/476 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to psychiatrics. In addition to the clinical study, an electroencephalography coherence analysis is conducted within the range of 30-45 Hz before psychotropic agents are prescribed. That is followed by determining middle zonal indices of the left and right hemispheres calculated between the midtemporal and following cortical regions: frontal, central, parietal, occipital, anteriofrontal and posteriofrontal in the homolateral direction. A hemispheric asymmetry factor (HAF) is calculated by dividing the middle zonal index of the left hemisphere by the middle zonal index of the right hemisphere. If the HAF value is less than 1, paranoid schizophrenia is diagnosed; and the value more than 1 shows schizo-affective disorder.

EFFECT: technique enables providing the more reliable differential diagnostics that is ensured by determining the zonal indices of the right and left hemispheres to calculate the hemispheric asymmetry factor.

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