Evaluation of mental workload for a newly-appointed pilot using salivary NO3− concentration and LF/HF values, compared with port-coordinators

This paper aims to acknowledge the trend of mental workload of a newly-appointed marine pilot compared with that of a veteran pilot, using the physiological index, salivary NO3− and LF/HF values, and confirm the effectiveness of salivary NO3− as a physiological index. This paper also aims to confirm that the pilots and port-coordinators' trends of mental workload respond risky situations including collision with other vessels in their duty. Pilots handle vessels for the captain in a specific port or harbor and pilots contribute the safety of the sea area. That is why to verify pilots' mental workload is essential for the purpose of preventing the risky situations. On the other hand, port-coordinators play a role of sea-safe controller at a port, and their advices by wireless radio support pilot's duty. To confirm and verify port-coordinators' mental workload is also essential. From this experiment we confirm the salivary NO3− and LF/HF values are useful to evaluation pilots' mental workload, and are also useful for a newly-appointed pilot's drill on board.