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为阐明职业因素对列车乘务员神经系统功能的影响，探讨其发生原因，采用ＷＨＯ推荐的神经行为核心测试组合（ＮＣＴＢ）测试了４９名乘务员和４８名商店售货员的神经行为功能。结果除情感状态两组得分接近外（Ｐ＞０．０５），乘务员的其余各项行为测试值均明显差于对照组（Ｐ＜０．０５），其中简单反应时、手敏捷度、视觉保留、目标追踪Ⅱ与对照组比较，差异均有非常显著意义（Ｐ＜０．０１）。而长途列车乘务员的此种神经行为改变可能是倒班制度、车内噪声、二氧化碳等职业因素联合作用所致。
In order to clarify the influence of occupational factors on the neurological function of train attendant and explore its causes, neurobehavioral functions of 49 flight attendants and 48 store clerks were tested using the NCTB. Results In addition to the emotional state of the two groups were close to the score (P> 0.05), steward performance test scores were significantly worse than the control group (P <0.05), simple response, hand sensitivity, visual retention (P <0.01). There was significant difference between the target tracking II and the control group (P <0.01). The long-distance train flight attendants of such neurological changes may be shift system, car noise, carbon dioxide and other occupational factors combined effect.