Abstract
Neuroimaging technologies, such as functional near- infrared spectroscopy (fNIR), could provide performance metrics directly from brain-based measures to assess safety and perfor- mance of operators in high-risk fields. In this paper, we objectively and subjectively examine the cognitive workload of air traffic con- trol specialists utilizing a next-generation conflict resolution ad- visory. Credible differences were observed between continuously increasing workload levels that were induced by increasing the number of aircraft under control. In higher aircraft counts, a pos- sible saturation in brain activity was realized in the fNIR data. A learning effect was also analyzed across a three-day/nine-session training period. The difference between Day 1 and Day 2 was cred- ible, while there was a noncredible difference between Day 2 and Day 3. The results presented in this paper indicate some advantages in objective measures of cognitive workload assessment with fNIR cortical imaging over the subjective workload assessment keypad.
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