The aim of this study was to clarify which cognitive mechanisms underlie Trail Making Test (TMT)
direct and derived scores. A comprehensive review of the literature on the topic was …

For over four decades the Wisconsin Card Sorting Test (WCST) has been one of the most
distinctive tests of prefrontal function. Clinical research and recent brain imaging have brought …

Single neuron, evoked potential and metabolic techniques show that attention influences
visual processing in extrastriate cortex. We provide anatomical, electrophysiological and …

The specificity of the Wisconsin Card Sorting Test (WCST) as a marker of frontal lobe pathology
remains controversial. One problem is the lack of a well established correspondence …

… In turn, all attempts to fit frontal dipoles to our WCST P3b model were unsuccessful (Barceló
& Rubia, 1998). Finally, a nonfrontal three-dipole model managed to account for up to 94.6% …

The Trail Making Test (TMT) has been a useful assessment tool to investigate executive
function. Several studies have recently improved the existing TMT norms by mean of large …

Cognitive flexibility hinges on a readiness to direct attention to novel events, and on an
ability to change one's mental set to find new solutions for old problems. Human event-related …

… not differ from those in WID trials [F(1,15)=0.83, ns]… F(1,15)=105.9, P<0.0001]. Finally, error
rates in late WCST trials did not differ from those of WID trials [F(1,15)=2.1, ns], or WED trials [F…

… components separately, we used a task-switching implementation used in Barceló (2003). …
the sake of comparability with the original task (Barceló, 2003) regarding the type of stimuli. …

Past studies show that novel auditory stimuli, presented in the context of an otherwise
repeated sound, capture participants’ attention away from a focal task, resulting in measurable …