Toward Evaluation of Ship Navigator’s Stress based on Saliva

The quantitative evaluation of human skill is an important research topic in the development of autonomous ship systems, which must possess the ability and skill of an individual. Furthermore, a physiological index cannot be used for evaluation because the individual character includes their results. However, in this paper, we propose a quantitative evaluation based on saliva. The evaluation of inside response is an important factor in understanding the skills and abilities of an individual. We measured saliva cortisol, which is an ideal index for evaluating stress, and applied it in a simulator-based experiment.