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<p>The study examined the impact of mind wandering (MW) on situation awareness (SA) under varying task difficulties and pinpointed the sensitive SA indicators. 43 participants completed the shearer status monitoring task under simple and complex tasks. It collected operational performance, SAGAT, SART, eye movements, and EEG data, followed by linear mixed models analysis. The results showed that: (1) During the simple task, MW with meta-awareness led to higher performance and SA compared to MW without meta-awareness. In the complex task, SA of MW without meta-awareness surpassed that of MW with meta-awareness. (2) MW without meta-awareness exhibited longer average fixation durations in the simple task. Furthermore, MW with meta-awareness showed inferior β1 and β2 absolute powers in the complex task. (3) β1 and β2 relative power, β2 absolute power, θ/β1, and θ/β2 weakly correlated with SAGAT in MW with meta-awareness, suggesting potential as sensitive SA indicators. SA moderately negatively correlates with fixation intensity. Conversely, δ and θ relative power, β1 and β2 relative power, β2 absolute power, θ/α1, θ/α2, θ/β1, and θ/β2 weakly correlated with SART in MW without meta-awareness, indicating potential as sensitive SA indicators. Moreover, fixation frequency may be linked to brain alertness levels. (4) As task difficulty increased, performance and SA decreased, whereas eye movement data increased. The research reveals the internal relationship between subconscious MW and SA under different task difficulties, and identifies a series of potentially sensitive physiological indicators. It provides a new perspective and empirical basis for further exploring the impact of MW on SA. The research findings can offer certain references for the optimization of operator training content and the design of information requirements for monitoring interfaces.</p>

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Research on the influence of MW on situation awareness in shearer monitoring tasks in intelligent coal mines

  • 期刊论文

  • 发表日期：

    2026年1月11日

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  • Xiaofang Yuan,
  • Jiamin Fan,
  • Yelan Zhang

摘要

The study examined the impact of mind wandering (MW) on situation awareness (SA) under varying task difficulties and pinpointed the sensitive SA indicators. 43 participants completed the shearer status monitoring task under simple and complex tasks. It collected operational performance, SAGAT, SART, eye movements, and EEG data, followed by linear mixed models analysis. The results showed that: (1) During the simple task, MW with meta-awareness led to higher performance and SA compared to MW without meta-awareness. In the complex task, SA of MW without meta-awareness surpassed that of MW with meta-awareness. (2) MW without meta-awareness exhibited longer average fixation durations in the simple task. Furthermore, MW with meta-awareness showed inferior β1 and β2 absolute powers in the complex task. (3) β1 and β2 relative power, β2 absolute power, θ/β1, and θ/β2 weakly correlated with SAGAT in MW with meta-awareness, suggesting potential as sensitive SA indicators. SA moderately negatively correlates with fixation intensity. Conversely, δ and θ relative power, β1 and β2 relative power, β2 absolute power, θ/α1, θ/α2, θ/β1, and θ/β2 weakly correlated with SART in MW without meta-awareness, indicating potential as sensitive SA indicators. Moreover, fixation frequency may be linked to brain alertness levels. (4) As task difficulty increased, performance and SA decreased, whereas eye movement data increased. The research reveals the internal relationship between subconscious MW and SA under different task difficulties, and identifies a series of potentially sensitive physiological indicators. It provides a new perspective and empirical basis for further exploring the impact of MW on SA. The research findings can offer certain references for the optimization of operator training content and the design of information requirements for monitoring interfaces.