We investigated the influence of intermittent normobaric hypoxia of sanogenic varying levels on the latent period of a complex visual-motor reaction in terms of choice in children - residents of radioactive contaminated territories. Indicators of anxiety were assessed with Spielberg - Hanin test. The study involved 48 children aged 6 to 17 years. The children were divided into two groups: the first one included the group from 6 to 11 years, and the second group from 12 to 17 years. It is shown that the intermittent normobaric hypoxia course sessions (12 % O₂ in nitrogen) reduced the latent period of complex visual-motor response of one of three colors (RC1-3) choice – 23 % and complex visual-motor response of two of the three colors (RC_2-3) choice – 27 %. It was revealed that the latent period RC_1-3 lasts longer than the latent period RC_2-3. The boys in both cases tend to have more rapid response than girl. It was found that after the sessions of varying normobaric hypoxia personal anxiety in both groups of children decreased by 20 and 23% respectively.