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Pedersen, Scott J.; Surburg, Paul R. – Adapted Physical Activity Quarterly, 2008
This study investigated the movement preparation (reaction time) and movement execution (movement time) of children with and without ADHD by manipulating the uncertainty of occurrence. Participants performed a seated lower extremity choice response time protocol, which contained either 10% catch trials or 30% catch trials along with 27 empirical…
Descriptors: Reaction Time, Hyperactivity, Attention Deficit Disorders, Matched Groups
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Basho, Surina; Palmer, Erica D.; Rubio, Miguel A.; Wulfeck, Beverly; Muller, Ralph-Axel – Neuropsychologia, 2007
Verbal fluency is a widely used neuropsychological paradigm. In fMRI implementations, conventional unpaced (self-paced) versions are suboptimal due to uncontrolled timing of responses, and overt responses carry the risk of motion artifact. We investigated the behavioral and neurofunctional effects of response pacing and overt speech in semantic…
Descriptors: Semantics, Pacing, Inhibition, Cognitive Processes
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Sibley, Benjamin A.; Etnier, Jennifer L. – Research Quarterly for Exercise and Sport, 2004
Attention is a term that has been used to describe a broad range of topics in the sport and exercise literature (Nougier, Stein, & Bonnel, 1991). Research focusing on attention has included studies on selectivity, concentration, mental set, visual search, arousal, and information processing (Abernethy, 2001), and a variety of techniques (e.g.,…
Descriptors: Information Processing, Attention Control, Cognitive Processes, Reaction Time