Vera Jesús, Jiménez Raimundo, García José Antonio, Cárdenas David
Department of Optics, University of Granada, Spain; Sport and Health University Mixed Institute, University of Granada, Spain.
Department of Optics, University of Granada, Spain.
Appl Ergon. 2017 Apr;60:313-319. doi: 10.1016/j.apergo.2016.12.011. Epub 2016 Dec 27.
We used a repeated-measures design to assess the impact of mental-task complexity on intraocular pressure (IOP). Fourteen participants performed three continuous 11-min blocks of a mental-workload task (3-back) and an oddball version of this task. Also, heart-rate variability (HRV), cognitive-performance scores, and subjective measure of mental load (NASA-TLX) were determined. IOP was taken before each block and afterwards as well as after recovery from mental tasks. We found that IOP increased during heavy mental workloads (p < 0.01). Consistent with this finding, the autonomic control (HRV) and the cognitive performance were significantly lower (p < 0.045, and p < 0.01, respectively), and the NASA-TLX scores were higher during the 3-back task (p < 0.01). We conclude that IOP is sensitive to mental workload, and it could provide a novel neuroergonomic tool to assess mental workload. Our study highlights a potential association between IOP and the nervous system's state of activation.
我们采用重复测量设计来评估心理任务复杂性对眼压（IOP）的影响。14名参与者进行了三个连续11分钟的心理负荷任务（3-back）块以及该任务的一个奇偶数版本。此外，还测定了心率变异性（HRV）、认知表现得分以及心理负荷的主观测量指标（NASA-TLX）。在每个任务块之前、之后以及从心理任务恢复后测量眼压。我们发现，在高强度心理负荷期间眼压升高（p < 0.01）。与此发现一致，自主控制（HRV）和认知表现显著降低（分别为p < 0.045和p < 0.01），并且在3-back任务期间NASA-TLX得分更高（p < 0.01）。我们得出结论，眼压对心理负荷敏感，并且它可以提供一种新颖的神经工效学工具来评估心理负荷。我们的研究突出了眼压与神经系统激活状态之间的潜在关联。
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