Neurocognitive deficit is one of the main neuropsychiatric effects of radiation exposure. The impact of ionizing radiation (IR), particularly in the low-dose range, and age-related factors may have a synergistic effect on the development of post-radiation cognitive impairment. It is suggested that the low doses of IR is a risk factor associated with age-related diseases, in particular, neurodegenerative ones. The prospective clinical study of the randomized samples of 52 elderly male Chornobyl clean-up workers (aged 64,1±2,9) irradiated at doses of 0.002–1.1 Sv at mean arithmetic dose (M ± SD) of 0.31±20.29 Sv, mean geometric dose of 0.16 Sv, median dose of 0.25 Sv and 13 male non-exposed controls (aged 63,3±2,9). All patients were examined using the Wechsler Adult Intelligence Scale, premorbid IQ assessment, and audial ERPs.
Kostiantyn Kuts and K. Loganovsky