PSYCHOPHYSIOLOGICAL FEATURES OF RADIATION RISK PERCEPTION

to determine the subjective and psychophysiological characteristics of the perception of radiation risk,to identify destructive individual-typological personality traits, as well as factors that can be the basis of psycho-logical compensation for victims of various radiation disasters and accidents.A comparative analysis of psychometric and neurophysiological parameters of hypertrophiedperception of radiation risk in the following groups was carried out: liquidators (clean-up workers) of the conse-quences of the Chornobyl accident and evacuees from the Chornobyl exclusion zone (CEZ) - 317 people total, par-ticipants in the anti-terrorist operation (ATO) - 101 people, and control group - 85 people. We used psychodiagnos-tic and neurophysiological (computerized electroencephalography) techniques.In the groups of liquidators and evacuees from CEZ there are significantly more people with hypertrophiedperception of radiation risk compared to the control group and the comparison group (liquidators - 71.88 %, liqui-dators-evacuees - 80.0 %, evacuees 76.92 %, ATO participants - 33.78 %, control group - 35.0 %). Among therespondents with hypertrophied perception of radiation risk radiation factors, and, most of all, diseases associatedwith ionizing radiation, hold the first rank places among 31 evaluated factors in all groups. The respondents withadequate perception of the radiation risk are primarily concerned about social stress and environmental factors.Correlation analysis showed that there are no correlation between hypertrophied perception of radiation risk andactual documented radiation dose. Hypertrophied perception depends on gender, level of education, family incomeand level of knowledge about ionizing radiation. It affects perception of one's health, makes you feel helpless,increase the level of distress from the Chornobyl disaster and the Fukushima-1 disaster in Japan, and is also associ-ated with the Revolution of Dignity. Hypertrophied perception of radiation risk contributes to disorders of psycho-somatic health and deformation of personality traits. Comparative analysis of the parameters of bioelectrical activ-ity of the brain of persons with hypertrophied perception of the radiation threat showed an increase in brain's delta-,theta- and beta- activity with suppression of alpha-activity and dominant frequency.In all examined groups a significant percentage of people with hypertrophied perception wererevealed. The key role in the process of perception of a radiation risk is played not by the real danger of the situa-tion and the documented dose of radiation, but by its perception and awareness. Hypertrophied perception of theradiation risk contributes to psychosomatic health disorders and deformation of personality traits, which is con-firmed by neurophysiological studies.Meta: Vyznachyty sub’iektyvni ta psykhofiziologichni osoblyvosti spryĭniattia radiatsiĭnogo ryzyku, vyiavyty dest-ruktyvni indyvidual'no-typologichni rysy osobystosti, a takozh psykhologichni chynnyky, iaki mozhut' buty pidґrun-tiam psykhologichnoï kompensatsiï u postrazhdalykh vnaslidok riznykh radiatsiĭnykh avariĭ ta intsydentivOb’iekt ta metody. Provedeno porivnial'nyĭ analiz psykhometrychnykh i neĭrofiziologichnykh parametriv uchasnykivlikvidatsiï naslidkiv avariï na ChAES (ULNA), osib evakuĭovanykh iz Chornobyl's'koï zony vidchuzhennia (ChZV) – zaga-lom 317 osib, uchasnykiv antyterorystychnoï operatsiï (ATO) – 101 osoba, i grupy neeksponovanogo kontroliu – 85osib, z gipertrofovanym spryĭniattiam radiatsiĭnoï zagrozy. Vykorystovuvaly psykhodiagnostychni ta neĭ-rofiziologichni (komp’iuternu elektroentsefalografiiu) metodyky.Rezul'taty. U grupakh ULNA ta evakuĭovanykh iz ChZV dostovirno bil'she osib z gipertrofovanym spryĭniattiamradiatsiĭnoï zagrozy porivniano z grupoiu kontroliu i grupoiu porivniannia (ULNA na ChAES – 71,88 %, ULNA-evakuĭo-vani – 80,0 %, evakuĭovani iz ChZV 76,92 %, uchasnyky ATO – 33,78 %, grupa kontroliu – 35 %). V usikh grupakh seredrespondentiv z gipertrofovanym spryĭniattiam radiatsiĭnoï zagrozy, radiatsiĭni faktory, i nasampered khvoroby,pov’iazani z ionizuiuchym vyprominiuvanniam, zaĭmaiut' pershi rangovi mistsia, sered 31 faktoru. Respondentiv zadekvatnym spryĭniattiam radiatsiĭnoï zagrozy v pershu chergu nepokoiat' sotsial'no-stresovi ta ekologichni fakto-ry. Koreliatsiĭnyĭ analiz gipertrofovanogo spryĭniattia radiatsiĭnoï zagrozy ne pokazav zv’iazkiv iz zadokumento-vanoiu dozoiu oprominennia. Gipertrofovane spryĭniattia zalezhyt' vid stati, rivnia osvity, dokhodu sim’ï, rivniaznan' pro ionizuiuche vyprominiuvannia; ta vplyvaie na samootsinku zdorov’ia, vidchuttia bezporadnosti ta riven'dystresu vid Chornobyl's'koï katastrofy ta avariï na Fukusima-1 v Iaponiï, a takozh asotsiiuiet'sia z podiiamy naMaĭdani. Gipertrofovane spryĭniattia radiatsiĭnogo ryzyku spryiaie porushenniam psykhosomatychnogo zdorov’ia i de-formatsiï rys osobystosti. Porivnial'nyĭ analiz parametriv bioelektrychnoï aktyvnosti golovnogo mozku pokazavzrostannia del'ta-, teta- ta beta-aktyvnosti pry depresiï al'fa-aktyvnosti ta dominantnoï chastoty u osib zgipertrofovanym spryĭniattiam radiatsiĭnoï zagrozy. Vysnovky. V usikh grupakh obstezhenykh vyiavleno znachnyĭ vidsotok osib z gipertrofovanym spryĭniattiam. Kliucho-vu rol' u protsesi spryĭniattia radiatsiĭnoï zagrozy vidigraiut' ne real'na nebezpeka sytuatsiï i zadokumentovanadoza oprominennia, a ïï spryĭniattia ta usvidomlennia. Gipertrofovane spryĭniattia radiatsiĭnoï zagrozy spryiaie po-rushenniam psykhosomatychnogo zdorov’ia i deformatsiï osobystisnykh rys, shcho pidtverdzhuiet'sia neĭrofiziologichny-my doslidzhenniamy.