Bodala Indu P, Ke Yu, Mir Hasan, Thakor Nitish V, Al-Nashash Hasan
Annu Int Conf IEEE Eng Med Biol Soc. 2014;2014:2993-6. doi: 10.1109/EMBC.2014.6944252.
Visual perception is affected by the quality of stimulus. In this paper, we investigate the rise in cognitive workload of an individual performing visual task due to vague visual stimuli. We make use of normalized average peak saccadic velocity to estimate the cognitive workload. Results obtained from 16 human subjects show that the mean of peak saccadic velocity increases with workload indicating that faster saccades are required to obtain information as the workload increases. This technique should find application in assessment of vigilance and cognitive performance in many demanding professional, industrial and transportation situation.
视觉感知受刺激质量的影响。在本文中，我们研究了由于模糊视觉刺激导致执行视觉任务的个体认知工作量的增加。我们利用归一化平均峰值扫视速度来估计认知工作量。从16名人类受试者获得的结果表明，峰值扫视速度的平均值随着工作量的增加而增加，这表明随着工作量的增加，需要更快的扫视来获取信息。该技术应在许多要求苛刻的专业、工业和交通场景中的警觉性和认知表现评估中得到应用。
