多级估量量表在脑力负荷主观评定中的应用

为探讨多级估量量表在脑力负荷主观评定中的意义，用基于模糊集的多级估量量表（ＭＥＳ）对三种不同难度视觉追踪任务的脑力负荷进行主观评量，并与追踪误差及传统类别量表（ＣＳ）的评定结果相比较。结果表明：（１）任务难度增加，追踪误差增大，各任务之间均有显著差异；（２）任务难度中，两量表评分变大，其中ＭＥＳ评分值任务间均有显著差异，ＣＳ评分值任务１和任务３之间、任务２任务３之间有显著差异，任务１和任务２之间无

Application of Multistage Evaluation Scale in Subjective Assessment of Mental Workload.

The efficiency of multistage evaluation scale (MES) based on the fuzzy set theory as used in subjective assessment of mental workload was studied,and the results were compared with those of tracking performance and category scale(CS).It was found that error(ER) significantly increased when task became more difficult (P<0.01) and the scalings of MES and CS also increased,but that of MES was significantly different in tasks of all the three difficulties (P<0.01) while those of CS was significant only between tasks 1 and 3 as well as tasks 2 and 3 (P<0.01),but not between tasks 1 and 2.These show that the result of MES is more agreeable with that of ER.So it might be a better subjective assessment measure of mental workload.