Vigilance research is a field of study that focuses on the ability of individuals to maintain attention and alertness over prolonged periods of time. It examines factors that can impact vigilance, such as fatigue, distraction, workload, and task complexity. Researchers in this area use a variety of methods, including experimental tasks, performance measures, and neuroimaging techniques, to better understand the mechanisms underlying vigilance and develop strategies to improve sustained attention in various domains, such as driving, aviation, security, and healthcare.