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[en] The goal of this work was to establish the effects of the irradiation of head in laboratory rats on some forms of naturalistic behavior in the open field test. During a 5-day control period behavioral parameters reflecting motory and explorative activity, as well as anxiousness of animals (6 parameters in total) were followed daily in 20 male Sprague-Dowley rats in an open field test lasting 5 minutes. Fourteen animals were repeatedly tested after irradiation of head with a single dose of 10 Gy of gamma rays. The results showed statistically significant depression of motory and explorative activities during the first 3 days after irradiation in comparison with the control period. The anxiousness of animals was decreased, too. Novelty habituation was observed only in non-irradiated animals. Based on these results it is possible to presume, that the applied dose of ionizing radiation was able to influence the brain centers involved in control of naturalistic behavioral functions connected with response to new environment in rats. (authors)
Source
Benova, K.; Toropila, M.; Skardova, I. (Ustav radiobiologie, Katedra zivotneho prostredia, Univerzita veterinarskeho lekarstva, 04181 Kosice (Slovakia)) (eds.); 258 p; ISBN 80-8077-004-2; 
; Jun 2004; p. 41-52; 2. Radiobiological conference, 2004; 2. Radiobiologicka konferencia venovana 55. vyrociu zalozenia Univerzity veterinarskeho lekarstva; Kosice (Slovakia); 24 Jun 2004; Available - English translation can be ordered from the Omega Info, Vysehradska 33, 85106 Bratislava, Slovak Republic (e-mail: info@omegainfo.sk), at USD 10.00 per standard page (1800 characters); 7 refs., 1 tab., 7 figs.; Proceedings was published as eBook on CD-ROM, paper were published in PDF format.
; Jun 2004; p. 41-52; 2. Radiobiological conference, 2004; 2. Radiobiologicka konferencia venovana 55. vyrociu zalozenia Univerzity veterinarskeho lekarstva; Kosice (Slovakia); 24 Jun 2004; Available - English translation can be ordered from the Omega Info, Vysehradska 33, 85106 Bratislava, Slovak Republic (e-mail: info@omegainfo.sk), at USD 10.00 per standard page (1800 characters); 7 refs., 1 tab., 7 figs.; Proceedings was published as eBook on CD-ROM, paper were published in PDF format.