Evaluation of mental fatigue using feature parameter extracted from event-related potential

Fatigue, especially mental fatigue, is inevitable for office workers and in life in general. Fatigue is usually related to a loss of efficiency and disinclination to effort. It is important to manage and cope with fatigue so that the workers do not damage their health. It is also possible that cumulative mental fatigue leads to decreased productivity in the workplace and induces critical errors in the worst cases. Therefore, the management of mental fatigue is important from the viewpoint of occupational risk management, productivity, and occupational health. This study presents a systematic approach to the evaluation of mental fatigue induced during a VDT task. The proposed method provides a useful means for evaluating the state of mental fatigue, which would be potentially applicable to the management of fatigue from the three viewpoints listed above and would lead to increased agility in an organization.