摘要
文章通过实验的方法探讨了工作时间长短对脑力负荷强度的影响。在实验中，被试者被要求做一项脑力要求非常高的工作，心算三位数乘一位数加四位数的算术。被试者被分为两组，一组必须在２０ｓ之内完成计算一道算术题，另一组计算时间不受限制，但一题算完下一题将马上出现。两组被试者都进行了一整天８ｈ的计算。实验结果表明，工作时间长短对脑力劳动负荷强度有一定的影响，但影响值比我们预计的要小得多。
An Experiment was conducted to investigate the effect of working time on metal workload.In the experiment, subjects were asked to do a very high mental demand task,to calculate the results of a three degits number multiplying by a single digit number and added to a four digits number without using a pen. Subjects were divided into two groups, one group was paced,with the rate of 20 seconds per calculation.The other group was unpaced,a new calculation will appear as soon as the subject finished the previous calculation. Subjects in both groups did the high intensified task for a whole day,i.e.eight hours.The experimental results show that the working time (duration)has some effects on the mental workload , but the effects were much lower than expected.
出处
《人类工效学》
1997年第4期16-21,共6页
Chinese Journal of Ergonomics
