Investigating Mental Workload Changes in a Long Duration Supervisory Control Task
Investigating Mental Workload Changes in a Long Duration Supervisory Control Task
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DOI：
10.1093/iwc/iwv012
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发表时间：
2015-09-01
影响因子：
1.3
通讯作者：
Solovey, Erin T.
中科院分区：
文献类型：
--
作者：
Boyer, Mark;Cummings, M. L.;Solovey, Erin T.
随着许多关键领域自动化程度的提高，操作员将被期望在监控系统的同时处理长时间的低任务负载，并可能对紧急情况做出反应。在低任务负荷期间监测操作人员的心理生理状态，可以发现不适应的注意状态，从而预测工作表现，并在关键时期促进更有效的工作负荷转换。本研究利用一种称为功能近红外光谱（fNIRS）的非侵入性神经成像技术，探讨了在长时间无聊后过渡到高工作量时检测异常注意力状态的问题。在最低接触和启动时，受试者的血流动力学反应减弱，在导弹防御任务中表现较差，表明近红外光谱可能有助于在这种情况下对操作员进行并发监测。
With improving automation in many critical domains, operators will be expected to handle long periods of low task load while monitoring a system, and possibly responding to emergent situations. Monitoring the psychophysiological state of the operator during low task load may detect maladapted attention states in order to predict performance and facilitate a more effective workload transition during critical periods. This research explored the question of detecting anomalous attention states during transitions to high workload following extended periods of boredom using a non-invasive neuroimaging technique called functional near-infrared spectroscopy (fNIRS). Subjects at the point of lowest engagement and priming had a diminished hemodynamic response and performed worse on missile defense task, showing fNIRS may be useful for concurrent monitoring of the operator in such settings.