Summary: The state detection nervous and mental disorders in patients (students) by rapid analysis of electrical signals cortex discovered. The method of signal processing by spectral analysis is discribed. The results of research electroencephalogram brain signals to control the alpha rhythm, its spectral correlation analysis and comparison of the characteristics of these values in healthy patients and appearance of the indicators of mental disorder. Nobility parameters electroencephalogram performed by using bipolar complex KL-720 to a representative group of students. The methodical identify symptoms of the disease and therapeutic correction of the local correlation to the states of depression, stress or depression by acting imbalance signals corresponding frequencies.
Key words: electroencephalography, anxiety and depressive disorders, mental states, brain, spectral analysis.