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Abstract

The aim of this paper is to analyze the current evidence on radiocerebral effects following exposure to <5 Sv. Dose-related cognitive and neurophysiological abnormalities among prenatally exposed children after the Chernobyl accident at gestation ages of +8 weeks were revealed at >20 mSv on the fetus and >300 mSv on the thyroid in utero; at 16-25 weeks, abnormalities were >10 mSv and >200 mSv, respectively. In adults, radiation-associated cerebrovascular effects were obtained at >0.15-0.25 Sv. Dose-related neuropsychiatric, neurophysiological, neuropsychological, and neuroimaging abnormalities following exposure to >0.3 Sv and neurophysiological and neuroimaging radiation markers at doses >1 Sv were revealed. Studies on radiation neuropsychiatric effects should be undertaken.

Keywords: Ionizing radiation,  Low doses,  Chernobyl accident,  Brain,  Radiosensitivity,  Radiocerebral effects,  Exposure in utero 

How to Cite: Loganovsky, K., (2009). Do Low Doses of Ionizing Radiation Affect the Human Brain?. Data Science Journal. 8, pp.PBR13–PBR35. DOI: http://doi.org/10.2481/dsj.BR-04