The effects of motivation and noise on situation awareness: A study based on SAGAT and EEG

IF 2.5 2区工程技术 Q2 ENGINEERING, INDUSTRIAL International Journal of Industrial Ergonomics Pub Date : 2023-09-01 DOI:10.1016/j.ergon.2023.103491

Yang Liu , Na Chen , Pei-Luen Patrick Rau

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Abstract

The current research results have differences in the correlation between situation awareness (SA) and physiological data, and there is a lack of systematic research on the influence of motivation and noise on SA. This study investigated the correlation between SA and electroencephalogram (EEG) signals under the effects of motivation and noise.

The independent variables were motivation (two levels: positive and negative) and noise (three levels: no noise, natural noise, and speech noise). And the dependent variable were the levels of SA in perception, comprehension and projection. Participants were required to observe traffic videos of three types of noise under two types of motivation and complete the Situation Awareness Global Assessment Technique (SAGAT) questionnaire after each video. We recorded the participants' EEG signals and calculated the average relative power of the delta, theta, alpha, and beta bands of each brain region.

The results showed that the levels of perception and projection under negative motivation were higher than those under positive motivation. The level of perception was negatively correlated with the delta band power in the central lobe and theta power in the occipital lobe. The level of projection was negatively correlated with the delta band power in the frontal, central, parietal, and occipital lobes, positively correlated with the theta band power, and negatively correlated with the delta band power in the temporal lobe. Therefore, negative motivation can improve the individual's perception and projection levels. The delta and theta band power may reliably measure SA.

This study can help improve team member's SA by establishing motivational rules and better develop physiological measures of SA.

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动机和噪声对情境意识的影响——基于SAGAT和EEG的研究

目前的研究结果在情境意识（SA）与生理数据之间的相关性方面存在差异，并且缺乏关于动机和噪声对SA影响的系统研究。本研究调查了动机和噪声影响下SA与脑电图（EEG）信号之间的相关性。自变量是动机（两个水平：积极和消极）和噪音（三个水平：无噪音、自然噪音和语音噪音）。因变量是SA在感知、理解和投射方面的水平。参与者被要求在两种动机下观察三种类型噪音的交通视频，并在每段视频后完成情境感知全球评估技术（SAGAT）问卷。我们记录了参与者的脑电图信号，并计算了每个大脑区域的δ、θ、α和β带的平均相对功率。结果表明，消极动机下的感知和投射水平高于积极动机下的认知和投射水平。感知水平与中央叶的δ带功率和枕叶的θ功率呈负相关。投射水平与额叶、中央叶、顶叶和枕叶的δ带功率呈负相关，与θ带功率呈正相关，与颞叶的δ频带功率呈负相关性。因此，消极动机可以提高个体的感知和投射水平。Δ和θ带功率可以可靠地测量SA。本研究可以通过建立动机规则来帮助提高团队成员的SA，并更好地开发SA的生理测量方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Industrial Ergonomics 工程技术-工程：工业

CiteScore

6.40

自引率

12.90%

发文量

110

审稿时长

56 days

期刊介绍： The journal publishes original contributions that add to our understanding of the role of humans in today systems and the interactions thereof with various system components. The journal typically covers the following areas: industrial and occupational ergonomics, design of systems, tools and equipment, human performance measurement and modeling, human productivity, humans in technologically complex systems, and safety. The focus of the articles includes basic theoretical advances, applications, case studies, new methodologies and procedures; and empirical studies.