Study on Situation Awareness under Different Mental Workloads
The aim of the present study was to examine the situation awareness (SA) changes under various mental workloads and to explore the sensitive physiological indicators to SA under this circumstance. Twenty-four participants were recruited to perform tasks under three kinds of mental workload based on...
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The Northwestern Polytechnical University
2020-06-01
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doaj-3361e2ec1a2f4d9c8475834e78c45d482021-05-02T18:26:32ZzhoThe Northwestern Polytechnical UniversityXibei Gongye Daxue Xuebao1000-27582609-71252020-06-0138361061810.1051/jnwpu/20203830610jnwpu2020383p610Study on Situation Awareness under Different Mental Workloads01234School of Aeronautic Science and Engineering, Beihang UniversitySchool of Aeronautic Science and Engineering, Beihang UniversitySchool of Aeronautic Science and Engineering, Beihang UniversitySchool of Aeronautic Science and Engineering, Beihang UniversitySchool of Aeronautic Science and Engineering, Beihang UniversityThe aim of the present study was to examine the situation awareness (SA) changes under various mental workloads and to explore the sensitive physiological indicators to SA under this circumstance. Twenty-four participants were recruited to perform tasks under three kinds of mental workload based on the Multi Attribute Task Battery (MATB) Ⅱ platform. Performance measures, situational awareness global assessment technology (SAGAT), three dimensions situation awareness rating technology (3D-SART), eye movement and electroencephalograph (EEG) data were recorded. Results indicated that, the SAGAT scores and 3D-SART scores decreased significantly with the increasing of mental workload. In addition, the two scores both have a medium negative relationship with the National Aeronautics and Space Administration Task Load Index (NASA-TLX) scores. The SAGAT scores have a medium positive relationship with the high alpha relative power at C4 electrode site. What's more, The SAGAT scores have a medium negative relationship with the Nearest Neighbor Index (NNI) under high mental workload condition. In conclusion, under different mental workload levels, (1) Mental workload has a medium negative relationship with SA. (2) NNI and high alpha relative power may be possible sensitive indicators to SA. The present study can provide a reference for designing the display and control interface in cockpit and for optimization of man-machine functional allocation.https://www.jnwpu.org/articles/jnwpu/full_html/2020/03/jnwpu2020383p610/jnwpu2020383p610.htmlsituation awarenessmental workloadsagatnnihigh alpha relative power |
collection |
DOAJ |
language |
zho |
format |
Article |
sources |
DOAJ |
title |
Study on Situation Awareness under Different Mental Workloads |
spellingShingle |
Study on Situation Awareness under Different Mental Workloads Xibei Gongye Daxue Xuebao situation awareness mental workload sagat nni high alpha relative power |
title_short |
Study on Situation Awareness under Different Mental Workloads |
title_full |
Study on Situation Awareness under Different Mental Workloads |
title_fullStr |
Study on Situation Awareness under Different Mental Workloads |
title_full_unstemmed |
Study on Situation Awareness under Different Mental Workloads |
title_sort |
study on situation awareness under different mental workloads |
publisher |
The Northwestern Polytechnical University |
series |
Xibei Gongye Daxue Xuebao |
issn |
1000-2758 2609-7125 |
publishDate |
2020-06-01 |
description |
The aim of the present study was to examine the situation awareness (SA) changes under various mental workloads and to explore the sensitive physiological indicators to SA under this circumstance. Twenty-four participants were recruited to perform tasks under three kinds of mental workload based on the Multi Attribute Task Battery (MATB) Ⅱ platform. Performance measures, situational awareness global assessment technology (SAGAT), three dimensions situation awareness rating technology (3D-SART), eye movement and electroencephalograph (EEG) data were recorded. Results indicated that, the SAGAT scores and 3D-SART scores decreased significantly with the increasing of mental workload. In addition, the two scores both have a medium negative relationship with the National Aeronautics and Space Administration Task Load Index (NASA-TLX) scores. The SAGAT scores have a medium positive relationship with the high alpha relative power at C4 electrode site. What's more, The SAGAT scores have a medium negative relationship with the Nearest Neighbor Index (NNI) under high mental workload condition. In conclusion, under different mental workload levels, (1) Mental workload has a medium negative relationship with SA. (2) NNI and high alpha relative power may be possible sensitive indicators to SA. The present study can provide a reference for designing the display and control interface in cockpit and for optimization of man-machine functional allocation. |
topic |
situation awareness mental workload sagat nni high alpha relative power |
url |
https://www.jnwpu.org/articles/jnwpu/full_html/2020/03/jnwpu2020383p610/jnwpu2020383p610.html |
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1721488856656642048 |