Indicators of Electroencephalogram Power Spectra in the Combined Form of Psychopathological Diathesis. Part 2

Background: the combined form of psychopathologic diathesis is a special personality structure, capable to transform into various manifest forms of psychiatric disorders. The main neurophysiological features of this form of diathesis are explored in Part 1 of study [1].

The aim of study is to determine the neurofunctional basis underlying the clinical phenomenology of the indicated form of psychiatric diathesis.

Participants and Methods: 2433 students (mean age 21.1 ± 3.9 yrs) were examined. Two main groups of 74 and 107 students were formed on the basis of the Abraham-Ferenczi-Szondi theory, each of them including a certain variant of the combined form of psychopathological diathesis. EEG recordings of 330 subjects (mean age 21.3 ± 3.7) from the normative HBI Database were used as a control group (CG). The 2d part of the study of neurophysiological features of persons with a combined form of psychopathological diathesis (identity integration disorder, IID) by estimating the spectral power of EEG rhythms is devoted to the comparative evaluation of the obtained data with the indicators of neurofunctioning of persons with various psychiatric disorders known from the literature. The features of bioelectrical activity of persons with IID and patients with organic mental disorders, psychopathology of schizophrenic and affective circle, neurotic and personality disorders are compared. Similarities and differences of brain functioning in the selected groups are demonstrated, and clinical and phenomenological analysis of the interpretation of the obtained comparative characteristics is performed.

Conclusion: prospects for further research of interdisciplinary nature are illustrated, opening up broad possibilities of using modern technologies of studying the indicators of neurofunctioning in the diagnostic search.

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