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Hilti, Caroline C.; Jann, Kay; Heinemann, Doerthe; Federspiel, Andrea; Dierks, Thomas; Seifritz, Erich; Cattapan-Ludewig, Katja – Brain and Cognition, 2013
The deterioration of performance over time is characteristic for sustained attention tasks. This so-called "performance decrement" is measured by the increase of reaction time (RT) over time. Some behavioural and neurobiological mechanisms of this phenomenon are not yet fully understood. Behaviourally, we examined the increase of RT over time and…
Descriptors: Brain Hemisphere Functions, Reaction Time, Attention Control, Performance
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McMorris, Terry; Hale, Beverley J. – Brain and Cognition, 2012
The primary purpose of this study was to examine, using meta-analytical techniques, the differential effects of differing intensities of acute exercise on speed and accuracy of cognition. Overall, exercise demonstrated a small, significant mean effect size (g = 0.14, p less than 0.01) on cognition. Examination of the comparison between speed and…
Descriptors: Exercise Physiology, Effect Size, Cognitive Ability, Meta Analysis
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de Fockert, Jan W.; Theeuwes, Jan – Brain and Cognition, 2012
The role of frontal cortex in selective attention to visual distractors was examined in an attentional capture task in which participants searched for a unique shape in the presence or absence of an additional colour singleton distractor. The presence of the additional singleton was associated with slower behavioural responses to the shape target,…
Descriptors: Attention Control, Short Term Memory, Role, Brain Hemisphere Functions