手动控制跟踪中操作者性能的肌电图评价

Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 1988-12-01 DOI:10.1109/IEMBS.1988.94761

R. E. Barr, R. Hamlin, L. Abraham, D. E. Greene

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引用次数: 2

摘要

对10名受试者进行了一项研究，以评估在手动控制跟踪过程中肌电图与学习的相关性。受试者坐在CRT屏幕前，在两天内手动跟踪两条不同的轨迹。表面肌电信号采集自旋长肌，rms平均时间间隔为1.5秒。两种目标轨迹的肌电均方根能量比较显示了速度跟踪剖面。利用肌电图数据和两种轨迹速度，利用幅度缩放和时间超前滞后位移进行二维曲线拟合。结果表明，拟合优度与跟踪精度一致，较好的跟踪器在最佳拟合中的均方误差较低

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Electromyographic evaluation of operator performance in manual control tracking

A study was conducted of ten subjects to evaluate electromyographic (EMG) correlates to learning during manual control tracking. Subjects were seated in front of a CRT screen and manually tracked two different trajectories on two different days. The surface EMG signal was gathered from the supinator longus muscle and RMS-averaged over one-half-second intervals. Comparison of EMG RMS energy for the two target trajectories suggested a velocity-tracking profile. A two-dimensional curve fit, using amplitude scaling and time lead-lag shifts, was obtained using the EMG data and the two trajectory velocities. Results suggest that goodness-of-fit coincides with tracking accuracy, with the better trackers having a lower mean squared error in the best fit.<>

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Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society

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