摘要
为探讨全身振动对跟踪作业工效及视觉－运动反应的影响，对１７名健康男性青年进行了双重任务测试及追踪瞄准纸笔测试。结果表明：视觉－运动反应总正确率ＡＲ、靶刺激反应正确率ＴｓＡＲ，０．３ｇｚ振动暴露组较对照组显著降低，０．１５ｇｚ振动暴露组与对照组比较则变化不显著。追踪瞄准纸笔测试中，两振动暴露组与对照组比较，两项打点数之和及打点速度均显著降低。结论：２０Ｈｚ、０．３ｇｚ的全身振动暴露３０ｍｉｎ后，对跟踪瞄准的打点速度及视觉－运动反应的一些指标产生了显著影响；２０Ｈｚ、０．１５ｇｚ的全身振动暴露３０ｍｉｎ后。
Dual task test(light target tracking and visual-motor reaction of visual oddball mode) and pursuit aiming test were done in 17 male healthy subjects after 30min exposure to whole-body vibrations of 20Hz 0.15gz or 20Hz 0.3gz.Mean accuracy rate of visual-motor reaction and target stimulus reaction accuracy rate after 0.3gz vibration were significantly lower than those of control group (P<0.05),while after 0.15gz vibration,the changes were not significant.Comparing with control group,the total number of right and wrong pointing,pointing speed in pursuit aiming test were significantly lower(P<0.05) after vibration.However,light target tracking error,mean reaction time of visual-motor reaction and pointing accuracy rate of pursuit aiming test had no significant change after exposure to any kind of the vibrations. It may be concluded that some kinds of effect on human tracking performance and visual-motor reaction were observed after exposure to whole-body vibration.
出处
《航天医学与医学工程》
CAS
CSCD
1998年第1期56-59,共4页
Space Medicine & Medical Engineering
关键词
振动
振动应激
视觉跟踪
工效学
运动反应
vibration vibration stress visual tracking human performance
