Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology
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Among the alternatives to drugs in the treatment of neurological and psychiatric disorders, neuromodulation techniques, including brain stimulation, have been used increasingly this past decade. Cortical targets are especially appealing, because they are easily accessible by noninvasive or invasive methods. Applicable techniques include repetitive transcranial magnetic stimulation (rTMS), transcranial electrical stimulation using pulsed or direct current, and epidural cortical stimulation (ECS) with surgically implanted electrodes. ⋯ In addition, various parameters of stimulation (such as stimulation frequency, intensity, or electrode polarity) and the configuration of the induced electrical field greatly influence the nature of the recruited circuits, and therefore, the overall efficacy. Finally, clinical changes may be delayed and prolonged beyond the time of stimulation, complicating programming algorithms in the case of implanted stimulation device. All these features need to be taken into account when considering cortical stimulation as a method of treatment.
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To investigate the effect of fatigue of postural and focal muscles on anticipatory postural adjustments (APAs). ⋯ The outcome of the study is important for better understanding of the effect of muscular fatigue on feedforward mechanisms of postural control with possible implications for the elderly and individuals with neurological disorders.
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Patients with complex regional pain syndrome (CRPS) suffer from continuous regional limb pain and from hyperesthesia to touch and pain. To better understand the pathophysiological mechanisms underlying the hyperesthesia of CRPS patients, we investigated their cortical processing of touch and acute pain. ⋯ Our results indicate changes of somatosensory processing at cortical level in CRPS.
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To investigate the anticipatory neural processes associated with the interruptive effects of pain anticipation on attention. ⋯ Individuals with greater anticipatory midcingulate responses may be predisposed to developing chronic pain and hypervigilance toward clinical pain symptoms.
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Case Reports
Electroencephalography burst suppression in a patient with dengue encephalopathy: A case report.
To report a rare case of dengue fever presenting with reversible encephalopathy and burst suppression in the EEG. ⋯ EEG burst suppression does not necessarily suggest a poor prognosis in patients with dengue fever.