为了探究管制员眼动特征与管制任务之间的内在关系以及比较不同的任务难度体现方式对任务难度的敏感性,对被试者在不同任务难度下的负荷、指令数、指令类型以及管制过程中的相关眼动指标进行聚类,根据聚类结果,探寻眼动指标与管制任务之间的内在联系以及不同的任务难度体现方式对任务难度的敏感性.结果表明,眼动指标对任务难度变化更为敏感,且眼动指标与被试者所发出的指令类型有着一一对应的关系,通过将眼动指标与指令类型进行动态的联系,能够更清晰地、更准确地反应管制任务难度的变化.%To explore the intrinsic relationship between the controller's eye movement features and the control tasks and to com-pare the sensitivity of different modes which can reflect different difficulty of the control tasks ,the intrinsic link between the eye movement indicators and regulatory tasks and the sensitivity of the difficulty of different tasks on reflecting the task difficulty were explored in this paper through experimental design and clustering results .The difference of task difficulty among the sub-jects under different task difficulty ,instructions number ,instruction types and related eye movement indicators in the process of control clustering were categorized .The results showed that the eye movement index was more sensitive to the change of task dif-ficulty ,and the eye movement index had a one-to-one correspondence with the type of instruction issued by the subjects .By dy-namically linking of the eye movement index and the instruction type ,the change of different task's difficulty can be more clearly and accurately reflected .
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