Review of the Mechanism of Vigilance Decrement and Future Research

Vigilance decrement remained a problem in spite of stuies for near a century. New researches focus on the state of vigilance, i.e., how to keep the awakening-sleep of the moderate level to prevent vigilance decrement, thus forestall work failure. By investigating work load, workload, brain EEG/ERPs activity, arousal level and vigilance performance, researchers have explored the features and mechanism of vigiliance decrement and proposed to better vigilance performance through improving the monitor's arousal level by sound alarm and sorrouding music. Future research is expected to define the sound slarming mechanisn and the arousal mechanism od sound and music; to explore methods for keeping proper monitoring awareness; to establish a arousal and precaution model based on awareness level which is suitable for multi-terminal monitoring service and feautring in automatic supervising and arousal feedback of the monitor's awareness level.