基于NES-C4的噪声环境作业人员视觉相关作业工效的研究  

Vision-related Work Efficiency of Operators in Environmental Noise Based on NES-C4

作　　者：盖志辉 崔博[1] 佘晓俊[1] 陈学伟[1] 安改红[1] 马强[1] GAI Zhihui;CUI Bo;SHE Xiaojun;CHEN Xuewei;AN Gailiong;MA Qiang(Institute of Health and Environmental Medicine,Academy of Military Medical Sciences,Tianjin,300050,China)

机构地区：[1]军事医学科学院卫生学环境医学研究所,天津300050

出　　处：《解放军预防医学杂志》2017年第9期1028-1030,1040,共4页Journal of Preventive Medicine of Chinese People's Liberation Army

基　　金：军事医学科学院"生物科技强军计划"前沿课题(No.2015CXJJ014)

摘　　要：目的探讨不同物理特性实时噪声环境对视觉相关作业工效的影响。方法 40名在校大学生青年志愿者随机分为不同强度组[对照组(环境背景噪声不高于40 d BA)、65 d BA白噪声组、75 d BA白噪声组]、不同频率组[低频谱组(<500Hz)、中高频谱组(500~3000 Hz),强度均为75 d BA]。使用NES-C4测试系统对各组人员的视觉相关神经行为功能进行测试。结果与对照组相比,65 d BA和75 d BA强度噪声可显著影响受试者在视觉保留、视觉反应时、曲线吻合、目标追踪、立体视觉项目的得分(P<0.05),且呈现噪声强度越高影响越大的趋势;设定75 d BA条件下,不同频率噪声对受试者视觉保留、视觉反应时间、曲线吻合、目标追踪、立体视觉各项指标的影响均未见显著差异(P>0.05)。结论作业环境中噪声强度是影响视觉相关作业工效的主要因素。Objective To study the effect of real-time noise environment of different intensities and frenquencies on vision-related work efficiency.Methods Forty volunteer undergraduates were randomly divided into intensity groups(control group,65dBA group and75dBA group)and frequency groups(high frequency group and low frequency group at the intensity of75dBA).NES-C4was used to test the nerve behavior function of each group.Results Compared with controls,the performance of operators under65and75dBA noise conditions was significantly affected on tests of visual retention,visual response,curve fit,target tracking and stereoscopic vision(P<0.05).Under75dBA,there was no significant difference in the scores of visual retention,visual response time,curve anastomosis,target tracking or stereoscopic vision between high-and low-frequency noise groups.Conclusion Noise intensity is the main factor that affects vision-related work efficiency.

关 键 词：噪声 视觉相关作业工效 NES-C4 强度 频谱 

分 类 号：R852.24[医药卫生—航空、航天与航海医学] R136.2[医药卫生—临床医学]