论文部分内容阅读
目的探讨锰对电焊作业工人神经行为的影响。方法采用计算机神经行为评价系统(NESC3)中8个行为测试项目对91名电焊作业工人和49名对照组工人进行测试。同时对接触组、对照组作业环境空气中的锰浓度及所有受试者血锰浓度进行采样测定。结果接触组工人的符号译码、视简单反应时、视复杂反应时、目标追踪和情感状态中紧张、疲惫、有力的测试结果明显差于对照组(P<0.05或P<0.01);接触组血锰为(0.78±0.39)μmol/L,明显高于对照组血锰[(0.53±0.32)μmol/L],P<0.01;但接触组血锰浓度与工龄、神经行为测试结果无明显相关关系(P>0.05)。结论锰可引起工人情感状态、手眼协调能力、心理运动能力的改变,计算机神经行为测试可作为一种检测电焊工人神经系统早期损害的较合适的方法。
Objective To investigate the effect of manganese on the neurobehaviors of workers exposed to electric welding. Methods Totally 91 welding workers and 49 control workers were tested by 8 behavioral test items in Computer Nervous Behavior Assessment System (NESC3). At the same time, the concentration of manganese in the ambient air and the concentration of manganese in all the subjects in the exposure group and the control group were sampled and determined. Results The symbolic decoding of workers in contact group was significantly worse than that in control group (P <0.05 or P <0.01) when the response time was simple and the target test and emotional state were complicated. Blood manganese was (0.78 ± 0.39) μmol / L, which was significantly higher than that of the control group (0.53 ± 0.32 μmol / L), P <0.01. However, there was no significant correlation between serum manganese concentration and length of service and neurobehavioral test Relationship (P> 0.05). Conclusion Manganese can cause changes in workers’ emotional status, hand-eye coordination and psychomotor ability. Computer neurobehavioral testing can be used as a more appropriate method to detect the early damage to the nervous system of the welder.