Human factors

人为因素
  • 文章类型: Journal Article
    本文讨论了基于视觉和EEG信号的具有认知负荷估计功能的基于低成本虚拟现实(VR)的飞行模拟器的设计和开发。重点是探索通过量化不同任务场景下飞行员感知认知负荷来评估飞行员与飞机互动的方法。在VR中设计了逼真的目标跟踪和战场上下文。头戴式眼睛凝视跟踪器和EEG耳机用于获取瞳孔直径,凝视固定,凝视方向和脑电图θ,阿尔法,和β波段功率数据的实时。我们在VR中开发了一个AI代理模型,并创建了与驾驶飞机交互的场景。为了估计飞行员的认知负荷,我们使用了低频瞳孔直径变化,固定率,凝视分布模式,基于EEG信号的任务负荷指数和EEG任务参与度指数。我们将工作负荷的生理指标与标准用户的基于执行器控制的工作负荷指标进行了比较。试点模拟研究的结果表明,本文讨论的指标与飞行员感知的任务难度有很强的关联。
    This paper discusses the design and development of a low-cost virtual reality (VR) based flight simulator with cognitive load estimation feature using ocular and EEG signals. Focus is on exploring methods to evaluate pilot\'s interactions with aircraft by means of quantifying pilot\'s perceived cognitive load under different task scenarios. Realistic target tracking and context of the battlefield is designed in VR. Head mounted eye gaze tracker and EEG headset are used for acquiring pupil diameter, gaze fixation, gaze direction and EEG theta, alpha, and beta band power data in real time. We developed an AI agent model in VR and created scenarios of interactions with the piloted aircraft. To estimate the pilot\'s cognitive load, we used low-frequency pupil diameter variations, fixation rate, gaze distribution pattern, EEG signal-based task load index and EEG task engagement index. We compared the physiological measures of workload with the standard user\'s inceptor control-based workload metrics. Results of the piloted simulation study indicate that the metrics discussed in the paper have strong association with pilot\'s perceived task difficulty.
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  • 文章类型: Journal Article
    地铁容易受到中断风险的影响,需要系统响应能力来建立应对中断的能力。实现这种弹性响应状态需要技术方面的准备,例如,利用数字技术(DT)来监控系统组件,和人为因素方面,例如,培养积极的人类应对能力;然而,这两个方面通常是独立考虑的,没有足够的整合。本文旨在开发和实证检验一种模型,在该模型中,启用监控的DTs,员工的反应,同时根据它们的相互作用和对系统响应能力的影响来考虑它们的积极能力。结果表明,虽然用于监测物理组件的DTs增强了感知的管理承诺并促进了集体效能,用于监测人体成分的DTs增加了心理压力并抑制了即兴演奏能力,对系统响应能力产生“双刃剑”效应。此外,明确的管理承诺缓冲了DTs引起的心理压力对个人即兴创作的不利影响。
    The metro is susceptible to disruption risks and requires a system response capability to build resilience to manage disruptions. Achieving such resilient response state requires readiness in both the technology side, e.g., utilizing digital technologies (DTs) to monitor system components, and the human factors side, e.g., fostering positive human coping capabilities; however, these two sides are usually considered independently, without sufficient integration. This paper aims to develop and empirically test a model in which monitoring-enabled DTs, employees\' reactions, and their positive capabilities are simultaneously considered in terms of their interplay and impact on system response capability. The results showed that while DTs for monitoring physical components enhanced perceived management commitment and fostered collective efficacy, DTs for monitoring human components increased psychological strain and inhibited improvisation capability, creating a \"double-edged sword\" effect on system response capability. Additionally, explicit management commitment buffered the adverse effect of DTs-induced psychological strain on individual improvisation.
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  • 文章类型: Journal Article
    驾驶员和转向系统之间的共享控制权限可能导致人机冲突,威胁到交通安全和协作驾驶系统的驾驶体验。以前的评价方法依赖于主观判断,有一套单一的评价标准,这使得获得全面和客观的评估具有挑战性。因此,我们提出了一种集成眼动跟踪数据的两阶段新方法,肌电信号和车辆动态特征来评估人机冲突。首先,通过驾驶模拟实验,分析了主观驾驶经验与客观指标的相关性。筛选强相关指数作为有效标准。在第二阶段,通过稀疏主成分分析(SPCA)对指标进行整合,以制定综合客观指标。从驾驶后问卷中收集的主观驾驶经验用于检查其有效性。结果表明,两组数据之间的误差小于7%,证明了该方法的有效性。这项研究提供了一种低成本的,一种高效的人机冲突评估方法,这有助于发展更安全、更和谐的人机协同驾驶。
    The shared control authority between drivers and the steering system may lead to human-machine conflicts, threatening both traffic safety and driving experience of collaborative driving systems. Previous evaluation methods relied on subjective judgment and had a singular set of evaluation criteria, making it challenging to obtain a comprehensive and objective assessment. Therefore, we propose a two-phase novel method that integrates eye-tracking data, electromyography signals and vehicle dynamic features to evaluate human-machine conflicts. Firstly, through driving simulation experiments, the correlations between subjective driving experience and objective indices are analyzed. Strongly correlated indices are screened as the effective criteria. In the second phase, the indices are integrated through sparse principal component analysis (SPCA) to formulate a comprehensive objective measure. Subjective driving experience collected from post-drive questionnaires was applied to examine its effectiveness. The results show that the error between the two sets of data is less than 7%, proving the effectives of the proposed method. This study provides a low-cost, high-efficiency method for evaluating human-machine conflicts, which contributes to the development of safer and more harmonious human-machine collaborative driving.
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  • 文章类型: Published Erratum
    [这更正了文章DOI:10.3389/fpsyg.203.1139373.].
    [This corrects the article DOI: 10.3389/fpsyg.2023.1139373.].
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  • 文章类型: Letter
    暂无摘要。
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  • 文章类型: Journal Article
    基于价值的医疗保健(VBHC)已被定义为衡量一个人的健康结果和临床经验相对于财务成本的改善。(1)该概念试图将重点放在调和医疗保健成本上涨与改善接受护理的人的结果的问题上,方法是询问我们如何以更低的成本获得“价值”,即更好的结果。最近,气候变化的影响已被添加到等式中,将一项服务的“可持续价值”定义为以最佳健康结果对照其经济成本来衡量,包括环境和社会成本。(2).
    Value-based healthcare (VBHC) has been defined as the measured improvement in a person\'s health outcomes and clinical experience against the financial costs.(1) The concept attempts to focus on the issue of reconciling the rising cost of healthcare with improving the outcomes for people who receive care by asking how we can obtain \"value\" defined as better outcomes at lower cost. More recently the impact of climate change has been added to the equation, defining the \"sustainable value\" of a service as being measured by the best health outcomes against its economic costs, including environmental and social cost.(2).
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  • 文章类型: Journal Article
    通过单剂量预填充注射器(SelfJect)进行的仓库促肾上腺皮质激素注射(ActharGel)的管理旨在提供一种简单的,符合人体工程学的替代传统注射。进行了迭代人为因素(HF)研究,以确定潜在的使用偏差并确保适当的设备使用。
    本文介绍了七个形成性研究,验证研究(与先前的试点验证研究),以及包括外行用户在内的参与者的补充验证研究,病人,看护者,和医疗保健提供者。评估参与者与SelfJect和用户界面的交互。使用偏差,用户偏好,和参与者成功完成任务的能力进行了评估,以生成对设备和用户界面的修改。
    在验证研究中,91%的参与者成功地进行了第一次注射。在模拟使用(6.9%)和基于知识(1.6%)的测试中,使用错误很少见。使用偏差通常归因于实验工件或信息监督,设备变暖的使用错误最多(49%的参与者),即使对用户界面进行了广泛的测试和调整。
    SelfJect能够以安全有效的方式被预期用户使用。迭代HF研究告知了减轻与使用相关的风险,以减少模拟使用过程中使用偏差的发生。
    UNASSIGNED: The administration of repository corticotropin injection (Acthar Gel) via a single-dose prefilled injector (SelfJect) is intended to provide a simple, ergonomic alternative to traditional injection. Iterative human factors (HF) studies were conducted to identify potential use deviations and ensure appropriate device use.
    UNASSIGNED: This article presents seven formative studies, a validation study (with prior pilot validation studies), and a supplemental validation study with participants including lay users, patients, caregivers, and healthcare providers. Participant interactions with SelfJect and the user interface were assessed. Use deviations, user preferences, and participants\' ability to successfully complete tasks were evaluated to generate modifications to the device and user interface.
    UNASSIGNED: In the validation study, 91% of participants successfully administered their first injection. Use errors were rare with simulated-use (6.9%) and knowledge-based (1.6%) testing. Use deviations were commonly attributed to experimental artifact or information oversight, and device warming had the most use errors (49% of participants), even with extensive testing and adjustments to the user interface.
    UNASSIGNED: SelfJect was able to be used in a safe and effective manner by the intended users. Iterative HF studies informed the mitigation of use-related risks to reduce the occurrence of use deviations during simulated use.
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  • 文章类型: Journal Article
    背景:眼动追踪技术可用于研究团队合作过程中的人为因素。
    目的:这项工作旨在比较作为团队领导和管理气道的团队成员的视觉注意力(VA),与团队成员在有专门的团队领导的情况下执行专注的气道管理任务相比。这项工作还旨在报告团队绩效的差异,行为技能,以及使用经过验证的工具在两组之间的工作量。
    方法:我们进行了基于模拟的,试点随机对照研究。参与者包括儿科志愿者,执业护士,新生儿护士。组成了由四名团队成员组成的三个团队。每个小组以随机顺序参加两个相同的新生儿复苏模拟方案,一次有,一次没有团队领导。使用市售的眼睛跟踪设备,我们分析了VA对(1)人体模型的关注,(2)同事,(3)监视器。在两次模拟中,只有作为气道操作员的受训者才会戴上眼动眼镜。
    结果:总计,分析了6种模拟情景和24种个人角色分配。没有团队领导能力的参与者对人体模型和监视器的总关注更多,虽然这并不重要。团队绩效没有显着差异,行为技能,和个人工作量。据报道,没有团队负责人的参与者对身体的需求明显更高。在汇报期间,所有团队都表示希望有一个敬业的团队领导。
    结论:在我们使用低成本技术的试点研究中,我们无法在团队负责人在场的情况下证明VA的差异。
    BACKGROUND: Eye-tracking technology could be used to study human factors during teamwork.
    OBJECTIVE: This work aimed to compare the visual attention (VA) of a team member acting as both a team leader and managing the airway, compared to a team member performing the focused task of managing the airway in the presence of a dedicated team leader. This work also aimed to report differences in team performance, behavioural skills, and workload between the two groups using validated tools.
    METHODS: We conducted a simulation-based, pilot randomised controlled study. The participants included were volunteer paediatric trainees, nurse practitioners, and neonatal nurses. Three teams consisting of four team members were formed. Each team participated in two identical neonatal resuscitation simulation scenarios in a random order, once with and once without a team leader. Using a commercially available eye-tracking device, we analysed VA regarding attention to (1) a manikin, (2) a colleague, and (3) a monitor. Only the trainee who was the airway operator would wear eye-tracking glasses in both simulations.
    RESULTS: In total, 6 simulation scenarios and 24 individual role allocations were analysed. Participants in a no-team-leader capacity had a greater number of total fixations on manikin and monitors, though this was not significant. There were no significant differences in team performance, behavioural skills, and individual workload. Physical demand was reported as significantly higher by participants in the group without a team leader. During debriefing, all the teams expressed their preference for having a dedicated team leader.
    CONCLUSIONS: In our pilot study using low-cost technology, we could not demonstrate the difference in VA with the presence of a team leader.
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  • 文章类型: Journal Article
    减少危险行为和交通违法行为对于防止私人和商业摩托车手的道路创伤至关重要。虽然道路规则和警察执法等法律干预措施有些有效,在理解摩托车手如何看待这些威慑因素以及影响其有效性的心理社会因素方面存在差距。这项研究旨在探讨摩托车手的心理社会倾向与他们对法律干预的反应之间的相互作用。它还比较了岘港城市环境中的两组不同的骑手-私人和商业摩托车手,越南,对工作相关影响对风险行为的影响进行细微差别的考虑,这可以实现有针对性的干预。我们提出了一个整合计划行为理论和威慑理论的理论模型,以分析心理社会和惩罚因素如何影响骑手的交通违法行为。岘港共有423名送货骑手和411名私人骑手参加了这项研究。结果表明,态度,感知行为控制,威慑力和感知显著影响骑手从事危险行为的意图,送货员对执法和处罚特别敏感。增强政策实效,干预措施应采用量身定制的执法策略,以说明每个骑手群体的独特动机和看法。例如,提高执法的可见性和一致性对送货乘客特别有影响,他们对直接威慑更敏感。政策调整还应侧重于重塑骑手对安全的态度,并调整他们对骑行情况的感知控制。通过量身定做干预措施,有效地影响每个群体的行为,我们最终可以减少交通事故。
    Reducing risky behaviors and traffic violations is crucial for preventing road trauma among private and commercial motorcyclists. While legal interventions such as road rules and police enforcement have been somewhat effective, there is a gap in understanding how motorcyclists perceive these deterrents and the psycho-social factors influencing their effectiveness. This research aims to explore the interplay between motorcyclists\' psycho-social predispositions and their responses to legal interventions. It also compares two distinct groups of riders - private and commercial motorcyclists - within the urban environment of Da Nang, Vietnam, providing a nuanced consideration of the influence of work-related impacts on risky behavior, which can enable targeted interventions. We propose a theoretical model integrating the Theory of Planned Behavior and Deterrence Theory to analyze how psycho-social and punitive factors influence riders\' traffic violations. A total of 423 delivery riders and 411 private riders in Da Nang participated in the study. The results show that attitude, perceived behavioral control, and perceptions of deterrence significantly impact riders\' intentions to engage in risky behaviors, with delivery riders being particularly responsive to law enforcement and penalties. To enhance policy effectiveness, interventions should employ tailored enforcement strategies that account for the unique motivations and perceptions of each rider group. For example, increasing the visibility and consistency of law enforcement could be particularly impactful for delivery riders, who are more sensitive to immediate deterrents. Policy adjustments should also focus on reshaping riders\' attitudes toward safety and adjusting their perceived control over riding situations. By tailoring interventions to effectively influence each group\'s behavior, we can ultimately reduce traffic incidents.
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  • 文章类型: Journal Article
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