基于脑电波的高温环境人员认知表现评价

高温导致安全事故频发，作业人员认知表现受损是造成高温安全事故的重要原因。故要显著减少高温安全事故，须能对高温作业人员的认知表现进行准确的评价、实时监测及预警，而基于认知测试或问卷的传统认知表现评价方法（任务绩效测试与主观量表测量）很难满足这一要求。从生理角度看，认知行为与大脑活动联系紧密，大脑活动特征可为认知表现评价提供重要依据。因此，采用脑电图动态记录脑电波为评价高温环境作业人员的认知表现给出了新思路。建立基于脑电波的新评价方法关键要探明高温范围内脑电波与认知表现的关系及其机理。然而基于常温环境的现有研究无法对此给出合理可靠的理论依据。本项目针对高温环境深入研究脑电波与认知表现的相互关系，并对其机理进行探讨，进而建立基于脑电波的高温环境人员认知表现评价模型。该项目的成功实施将从生理角度为评价高温对认知表现的影响提供合理的新方法，最终为实现高温劳动人员的安全高效作业建立更为完善可靠的保障。

High temperature leads to frequent safety accidents, which is mainly caused by the impaired cognitive performance of operators. In order to significantly reduce the high-temperature safety accident, it is necessary to accurately evaluate and real-time monitoring and early warning of the cognitive performance of high-temperature workers. However, the traditional cognitive performance evaluation method based on cognitive test or questionnaire, i.e., task performance test and subjective scale measurement, is a huge challenge to meet this requirement. From the physiological point of view, cognitive behavior is closely related to brain activity, and the characteristics of brain activity can provide an important basis for cognitive performance evaluation. Therefore, the dynamic recording of brain waves by Electroencephalography (EEG) provides a novel idea for evaluating the cognitive performance of high-temperature environment operators. The key to the establishment of a new evaluation method based on brain wave is to explore the relationship between brain wave and cognitive expression in the high-temperature range as well as its mechanism. However, the existing research based on the normal temperature environment cannot give a reasonable and reliable theoretical basis for the new evaluation method. The proposed research program will deeply study the relationship between brain wave and cognitive expression in a high-temperature environment, and discuss its mechanism, and then establish the cognitive performance evaluation model of high-temperature environment personnel based on brain wave. The successful implementation of the research program will provide a reasonable new method for evaluating the influence of high temperature on cognitive performance from the physiological point of view, and finally establish a more perfect and reliable guarantee for the realization of safe and efficient operation of high-temperature workers.