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One of the older theories suggested that a person literally runs out of brain-fuel when they hit the wall (Baumeister et al, 1998). They called this state "ego depletion" and it refers to the kind of mental burnout you are talking about. There is currently a lot of research activity on this topic because we (psychologists) assumed for over a decade that some ...


3

A sleep study by Van Dongen et al (2003) uses three metrics to measure the effects of fatigue due to sleep loss. The first is cognitive throughput: A serial addition/subtraction task was included in the assessment battery to measure cognitive throughput. The serial addition/subtraction task is a subject-paced task requiring the completion of 50 ...


3

There are a several perspectives of mental fatigue. Here are a few starting points: There is a huge literature on burnout (see wikipedia article for a review, and Maslach et al, 2001, PDF) for their annual review of psychology article. Burnout refers to a rather chronic form of emotional and mental exhaustion. Burnout is often assessed in research using ...



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