Self-perceptual blindness to mental fatigue in mining workers.

IF 1.5 Q3 ERGONOMICS
Frontiers in neuroergonomics Pub Date : 2024-10-23 eCollection Date: 2024-01-01 DOI:10.3389/fnrgo.2024.1441243
Helena Purto, Héctor Anabalon, Katherine Vargas, Cristian Jara D, Ricardo de la Vega
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Abstract

Mental fatigue is a psychophysiological state that adversely impacts performance in cognitive tasks, increasing risk of occupational hazards. Given its manifestation as a conscious sensation, it is often measured through subjective self-report. However, subjective measures are not always true measurements of objective fatigue. In this study, we investigated the relationship between objective and subjective fatigue measurements with the preventive AccessPoint fatigue assay in Chilean mine workers. Subjective fatigue was measured through the Samn-Perelli scale, objective fatigue through a neurocognitive reaction time task. We found that objective and subjective fatigue do not correlate (-0.03 correlation coefficient, p < 0.001). Moreover, severe fatigue cases often displayed absence of subjective fatigue coupled with worse cognitive performance, a phenomenon we denominated Perceptual Blindness to fatigue. These findings highlight the need for objective fatigue measurements, particularly in high-risk occupational settings such as mining. Our results open new avenues for researching mechanisms underlying fatigue perception and its implications for occupational health and safety.

采矿工人对精神疲劳的自我感知盲区。
精神疲劳是一种心理生理状态,会对认知任务的表现产生不利影响,增加职业危害风险。鉴于其表现为一种有意识的感觉,通常通过主观自我报告来测量。然而,主观测量并不总是客观疲劳的真实测量。在这项研究中,我们利用预防性 AccessPoint 疲劳测定法对智利矿工的客观疲劳测量值与主观疲劳测量值之间的关系进行了调查。主观疲劳通过 Samn-Perelli 量表进行测量,客观疲劳通过神经认知反应时间任务进行测量。我们发现,客观疲劳和主观疲劳并不相关(相关系数为-0.03,p < 0.001)。此外,严重疲劳的病例往往没有主观疲劳感,同时认知表现较差,我们称这种现象为疲劳知觉盲。这些发现凸显了客观疲劳测量的必要性,尤其是在采矿等高风险职业环境中。我们的研究结果为研究疲劳感知的内在机制及其对职业健康和安全的影响开辟了新的途径。
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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