The role of individual-typological features in the perception of radiation threat

M. Hresko
SI "National research center for radiation medicine of national academy of medical sciences of Ukraine", Kyiv

Abstract


The object of the study was to determine the role of individual typological features in the perception of the radiation threat. A retrospective and
comparative analysis of the psychometric and neurophysiological parameters of participants in the liquidation of the Chernobyl accident
(liquidators) was conducted. In the post-accident period the liquidators have a deformation of the personality, which is characterized by the growth
of introversion and neuroticism, the sharpening of the character traits of the personality and the increase in the number of accentuations of the
emotiveness, pedantry, anxiety, cyclothymia, dysthymia and excitability type. The neurophysiological basis of individual-typological characteristics
of personality is defined. Which consists in the growth of the relative and absolute spectral power of the delta band, a decrease in the relative and
absolute spectral power of the beta band and a decrease in the dominant frequency. Such changes may indicate an organic lesion of the brain,
mainly in the cortico-limbic system. The radiation dose positively correlated with the relative spectral power of the delta and theta band, negatively
with the relative and absolute spectral power of the beta band and the dominant frequency. Such features of personality as extraversion,
neuroticism, cyclothymia and excitability are positively correlated with the dose of irradiation. At the liquidators, the perception of radiation factors
is inadequate: diseases associated with the action of ionizing radiation occupy the fifth rank, the danger from the presence of radiation in the air is
rank 8, while the dangerous factors "smoking" and "alcohol use" occupy the last ranked places. The hypertrophied perception of the radiation
threat positively correlates with personality traits, such as emotiveness, pedantry, demonstrativeness, anxiety and exaltation.


Keywords


ionizing radiation, extraversion, introversion, character accentuation, liquidators of the Chernobyl accident, electroencephalography

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Received: 12.03.2018

Revised: 17.04.2018

Signed for publication: 18.04.2018




DOI: http://dx.doi.org/10.17721/1728_2748.2018.75.6-11

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