Performance, Workload, and Eye Movement Activity

In this study four experiments were conducted aimed at creating an objective physiologic metric of operator workload by comparing subjective and objective measures of performance. Thirty-four participants completed a series of computer-based tasks and the NASA-TLX workload metric. Neuroelectric eye movement indices (e.g., blink, velocity) were then collected using a subset of these tasks. In general, the results were very good. Eye movement indices during performance on the computer-based tasks showed some statistical significance. A current study is underway to further examine eye movement indices as an objective physiologic metric.