Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology
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Comparative Study
Do children with ADHD and/or PDD-NOS differ in reactivity of alpha/theta ERD/ERS to manipulations of cognitive load and stimulus relevance?
We examined whether the method of event-related (de-)synchronization (ERD/ERS) revealed differential effects of selective attention and working memory load in children (8-11 years) with pervasive developmental disorder - not otherwise specified (PDD-NOS) or attention-deficit/hyperactivity disorder (ADHD). ⋯ Alpha and theta ERD/ERS are sensitive to manipulations of task load, relevance and target/nontarget, but supply no additional information on possible group differences in comparison to the more frequently used method of event-related potentials.
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To assess the effect of local excitation of nociceptors at different locations of the upper trapezius muscle on the spatial distribution of upper trapezius electromyographic (EMG) amplitude during sustained contraction. ⋯ Pain-induced changes in the spatial distribution of muscle activity may induce overload of specific muscle regions in the long term.