Effects of Long-term Working Memory and Attention Distribution on Situational Awareness of Armored Vehicle Occupants

doi:10.12382/bgxb.2021.0609

Abstract

Abstract: The situational awareness level of armored vehicle crew significantly affects the combat effectiveness of the vehicle, and the situational awareness of crew members is affected by working memory, attention distribution and other factors. In order to explore the effects of crew’s long-term working memory and attention distribution on their situational awareness, 24 subjects were recruited to carry out the evaluation experiment of crew’s situational awareness. The experiment was based on the virtual simulation experiment system of a hypothetical armored vehicle crew task. The results showed that: in the aspect of long-term working memory, the situational awareness level of skilled people was significantly higher than that of beginners; in terms of attention distribution, the situational awareness level under the high-saliency condition was significantly higher than that under the low-saliency condition; the frequency of abnormal information, however, had little effect on situational awareness. Further analysis showed that indices such as 3D-SART, SAGAT, abnormal information response time, percentage of eyelid coverage of the eye, proportion of gaze time on the instrument area, SDNN and PNN50 are more sensitive to the change of situational awareness level. This study can provide some design basis for the design of human-computer interaction interface of armored vehicles.

Key words: armoredvehicle, occupants, situationawareness, long-termworkingmemory, attentiondistribution

CLC Number:

TJ811

SUN Houjie， JIN Xiaoping， XIE Fang， SUN Xiaodong， ZHENG Sijuan. Effects of Long-term Working Memory and Attention Distribution on Situational Awareness of Armored Vehicle Occupants[J]. Acta Armamentarii, 2022, 43(11): 2749-2760.

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