Grigoryev Y G
USSR.
Life Sci Space Res. 1969;7:173-85.
During space flights the vestibular analyzer functions under conditions which are not usual for Earth environments. The vestibular analyzer periodically or constantly experiences the action of angular, linear or Coriolis acceleration combined with ionizing radiation. The quantitative evaluation of the functional state of the vestibular analyzer made it possible to obtain material on semicircular canal activity disturbances at different periods of radiation sickness and responses of the irradiated body, given various doses of gamma radiation, to angular and Coriolis acceleration. Experiments were performed on 250 rabbits and 22 dogs. Rabbits were exposed to the total gamma radiation at doses of 50, 100, 500, 800, 5000, 10000 rad; dogs experienced single and fractional radiation exposures at doses of 200 rad (gamma-rays) and at doses of 500 and 350 rad (protons of 510 MeV). Specific conditions under which the astronaut's vestibular analyzer is functioning during space missions and our own experimental results make it possible to state that the vestibular analyzer serves as the critical organ in evaluation of radiation hazards during space flights.
在太空飞行期间，前庭分析器在不同于地球环境的条件下发挥功能。前庭分析器会周期性地或持续地受到角加速度、线加速度或科里奥利加速度的作用，同时还会受到电离辐射。对前庭分析器功能状态的定量评估，使得获取有关不同辐射病阶段半规管活动障碍以及在不同剂量伽马辐射下受辐照机体对角加速度和科里奥利加速度反应的资料成为可能。实验是在250只兔子和22只狗身上进行的。兔子接受了剂量为50、100、500、800、5000、10000拉德的全身伽马辐射；狗接受了单次和分次辐射照射，剂量分别为200拉德（伽马射线）以及500和350拉德（510兆电子伏的质子）。宇航员前庭分析器在太空任务期间发挥功能的特定条件以及我们自己的实验结果表明，前庭分析器是评估太空飞行期间辐射危害的关键器官。
