Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology
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Randomized Controlled Trial
Improving working memory: exploring the effect of transcranial random noise stimulation and transcranial direct current stimulation on the dorsolateral prefrontal cortex.
The aim of this study was to determine if working memory (WM) performance is significantly improved after the delivery of transcranial random noise stimulation (tRNS) to the left dorsolateral prefrontal cortex (DLPFC), compared to an active comparator or sham. ⋯ Anodal tDCS may have significant implications for WM remediation in psychiatric conditions, particularly schizophrenia.
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To investigate the presence of multiple spinothalamic pathways for warmth in the human spinal cord. ⋯ Warmth sensation is subserved by parallel spinothalamic pathways, one probably reaching the SII area, the other the ACC.
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Clinical Trial
Spinal associative stimulation: a non-invasive stimulation paradigm to modulate spinal excitability.
Repetitive, paired peripheral and transcranial stimulation targeting the cerebral cortex can increase cortical excitability, outlasting the stimulation period. It is unknown whether paired stimulation specifically targeting the spinal cord can modulate spinal excitability. We tested whether the H-reflex facilitation from a sub-threshold conditioning TMS pulse could modulate spinal excitability if delivered repetitively. ⋯ Spinal associative stimulation may have potential for neuromodulation in spinal cord injury patients.
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Comparative Study
EEG correlation and power during maintenance of wakefulness test after sleep-deprivation.
To investigate whether there are any objective EEG characteristics that change significantly between specific time periods during maintenance of wakefulness test (MWT) and whether such changes are associated with the ability to appropriately communicate sleepiness. ⋯ This study demonstrates that there are specific EEG characteristics associated with impending failure to communicate sleepiness.
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Randomized Controlled Trial Comparative Study
Use of swLORETA to localize the cortical sources of target- and distracter-elicited P300 components.
Cognitive event-related potentials (especially P300) have long been used to explore attentional processes. The aim of this study was to identify the cortical areas involved in P300 generation during a selective attention task. ⋯ Our data agree with the literature reports using other methods and should help to improve our knowledge of the cerebral networks underlying attentional processes.