The impairing effects of mental fatigue on visual sustained attention were assessed by event-related potentials (ERPs). Subjects performed a dual visual task. which includes a continuous tracking task (primary task) and a random signal detection task (secondary task). for 63 minutes nonstop in order to elicit ERPs. https://www.bekindtopets.com/mega-sale-eZall-Fly-Spray-super-grab/