Cognitive fatigability is conventionally quantified as the increase over time in either mean
reaction time (RT) or error rate from two or more time periods during sustained performance …

Studies of cognitive performance among persons with chronic fatigue syndrome (CFS) have
yielded inconsistent results. We sought to contribute to findings in this area by examining …

Prolonged continuous performance of a cognitively demanding task induces cognitive
fatigue and is associated with a time-related deterioration of objective performance, the …

What are the consequences of testing over an extended period? We report a study of 4 hr of
nearly continuous testing on two verbal tests (Cloze and Completion). Prior to the testing …

Cognitive fatigue and cognitive fatigability are distinct constructs. Cognitive fatigue reflects
perception of cognitive fatigue outside of the context of activity level and duration and can be …

There is growing evidence that fluctuations in brain activity may exhibit scale-free (“fractal”)
dynamics. Scale-free signals follow a spectral-power curve of the form P (f)∝ f− β, where …

Demanding tasks like cognitive flexibility show time-related deterioration of performance (ie
fatigability effects). Fatigability has been associated with structural and functional properties …

Recent research yielded the intriguing conclusion that, in healthy adults, higher levels of
variability in neuronal processes are beneficial for cognitive functioning. Beneficial effects of …

Research in cognitive fatigue has identified the negative impact that cognitive exertion can
have on subsequent task performance. An underexamined question is whether there are …

Cognitive fatigue is a new field of study, or, at least, an unfamiliar term in psychology. A
keyword search on the PsycINFO database for cognitive fatigue, conducted on April 6, 2009 …