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目的 探讨动物体位在电磁场生物效应中的意义 .方法 通过经典的 Y-型迷宫法和改良的开阔法检验电磁场照射后不同体位 (身体长轴与磁力线方向平行、垂直或者自由体位 )小鼠的学习记忆能力和主观探索能力 .结果 电磁场照射后不同时间 ,不同体位小鼠学习记忆能力无显著差别 ,而探索反射有差别 . 40 k V· m- 1电磁场照射后即刻 ,平行磁力线体位组小鼠探索性反射显著低于自由体位组 (P<0 .0 5 ) .照射后 4wk,40 k V· m- 1 强度中平行磁力线体位组小鼠探索性反射显著高于自由体位组 (P<0 .0 5 ) ,8k V· m- 1强度下平行磁力线体位组小鼠探索性反射显著低于自由体位组 (P<0 .0 5 ) ,80 k V· m- 1 强度下垂直磁力线体位组小鼠探索性反射显著高于自由体位组 (P<0 .0 5 ) .结论 动物体位对电磁场的生物效应是有影响的
Objective To investigate the significance of animal body position in the biological effects of electromagnetic fields.Methods The learning of mice at different body positions (parallel to, along the direction of the long axis of the body and the direction of the magnetic lines of force) of the mice after exposure to electromagnetic fields was examined by the classical Y-type maze method and the modified open method Memory ability and subjective exploration ability.Results There was no significant difference in learning and memory abilities between different position and time after the electromagnetic field irradiation, but the exploration reflex was different.After 40 kV · m-1 electromagnetic field irradiation, The sexual reflex was significantly lower than that of the free position group (P <0.05). The exploratory reflex of the parallel magnetic field line group at 4wk and 40k V · m-1 intensity was significantly higher than that of the free position group (P <0. (P <0.05) at 8k V · m-1 intensity. Compared with the free-position group, the exploratory reflexes of mice in parallel magnetic field lines at 8k V · m-1 intensity were significantly smaller Rats exploratory reflex was significantly higher than the free position group (P <0 05) .Conclusion Animal position on the biological effects of electromagnetic fields are affected