Mijović Pavle, Ković Vanja, De Vos Maarten, Mačužić Ivan, Todorović Petar, Jeremić Branislav, Gligorijević Ivan
a Faculty of Engineering, Department for Production Engineering , University of Kragujevac , Kragujevac , Serbia.
b Faculty of Philosophy, Department for Psychology , University of Belgrade , Belgrade , Serbia.
Ergonomics. 2017 Feb;60(2):241-254. doi: 10.1080/00140139.2016.1142121. Epub 2016 Mar 8.
Continuous and objective measurement of the user attention state still represents a major challenge in the ergonomics research. Recently available wearable electroencephalography (EEG) opens new opportunities for objective and continuous evaluation of operators' attention, which may provide a new paradigm in ergonomics. In this study, wearable EEG was recorded during simulated assembly operation, with the aim to analyse P300 event-related potential component, which provides reliable information on attention processing. In parallel, reaction times (RTs) were recorded and the correlation between these two attention-related modalities was investigated. Negative correlation between P300 amplitudes and RTs has been observed on the group level (p < .001). However, on the individual level, the obtained correlations were not consistent. As a result, we propose the P300 amplitude for accurate attention monitoring in ergonomics research. On the other hand, no significant correlation between RTs and P300 latency was found on group, neither on individual level. Practitioner Summary: Ergonomic studies of assembly operations mainly investigated physical aspects, while mental states of the assemblers were not sufficiently addressed. Presented study aims at attention tracking, using realistic workplace replica. It is shown that drops in attention could be successfully traced only by direct brainwave observation, using wireless electroencephalographic measurements.
在人体工程学研究中，持续且客观地测量用户的注意力状态仍是一项重大挑战。最近出现的可穿戴式脑电图（EEG）为客观且持续地评估操作员的注意力带来了新机遇，这可能会在人体工程学中提供一种新范式。在本研究中，在模拟装配操作过程中记录了可穿戴EEG，目的是分析P300事件相关电位成分，该成分可提供有关注意力处理的可靠信息。同时，记录了反应时间（RTs），并研究了这两种与注意力相关的方式之间的相关性。在组水平上观察到P300振幅与RTs之间呈负相关（p <.001）。然而，在个体水平上，获得的相关性并不一致。因此，我们建议在人体工程学研究中使用P300振幅来进行精确的注意力监测。另一方面，在组水平和个体水平上均未发现RTs与P300潜伏期之间存在显著相关性。从业者总结：装配操作的人体工程学研究主要调查了身体方面，而装配工的心理状态并未得到充分关注。本研究旨在利用逼真的工作场所复制品进行注意力跟踪。结果表明，只有通过使用无线脑电图测量直接观察脑电波，才能成功追踪注意力的下降情况。
