When a person tries to judge whether a faint stimulus is present or absent,approximately how long does it take for his or her vigilance to diminish due to fatigue?

Question

Quizplus · Accepted Answer

Vigilance, or the ability to maintain attention and alertness over prolonged periods, tends to diminish due to fatigue approximately after 30 minutes. This is a common finding in studies of sustained attention tasks, where performance often begins to decline after this period.

When a Person Tries to Judge Whether a Faint Stimulus