Subhani Ahmad Rauf, Malik Aamir Saeed, Kamel Nidal, Saad Naufal, Nandagopal D Nanda
Annu Int Conf IEEE Eng Med Biol Soc. 2015;2015:6038-41. doi: 10.1109/EMBC.2015.7319768.
The Demand-Control (DC) model has been extensively researched to find the imbalance of demand and control that cause work-related stress. Past research has been exclusively dedicated to evaluate the impact of this model on employees' well-being and job environment. However, the impact of high demands (strain hypothesis) and the influence of control (buffer hypothesis) on cognitive arousal have yet to be identified. We aimed to fill this void by measuring the influence of the DC model on the cognitive arousal. Electroencephalogram (EEG) was recorded to extract the cognitive arousal in an experiment that implemented the DC model. The experiment comprised four conditions having combination of varying demand and control. The strain and the buffer hypothesis were separately validated by the cognitive arousal in association with the task performance and subjective feedbacks. Results showed the maximum arousal and the worst performance occurred in high demand and low control condition. Also high control proved to significantly lower arousal and improved performance than in low control condition with high demand.
需求-控制（DC）模型已被广泛研究，以找出导致工作相关压力的需求与控制之间的失衡。过去的研究专门致力于评估该模型对员工幸福感和工作环境的影响。然而，高需求（紧张假说）的影响以及控制（缓冲假说）对认知唤醒的影响尚未得到确认。我们旨在通过测量DC模型对认知唤醒的影响来填补这一空白。在一项实施DC模型的实验中，记录脑电图（EEG）以提取认知唤醒。该实验包括四个条件，这些条件是不同需求和控制的组合。紧张假说和缓冲假说分别通过与任务绩效和主观反馈相关联的认知唤醒得到验证。结果表明，在高需求和低控制条件下出现了最大唤醒和最差绩效。此外，与高需求的低控制条件相比，高控制被证明能显著降低唤醒并提高绩效。
