نتایج جستجو برای: direct electrical current
تعداد نتایج: 1320009 فیلتر نتایج به سال:
The field of transcranial electrical stimulation (tES) has experienced significant growth in the past 15 years. One of the tES techniques leading this increased interest is transcranial direct current stimulation (tDCS). Significant research efforts have been devoted to determining the clinical potential of tDCS in humans. Despite the promising results obtained with tDCS in basic and clinical n...
It has been proposed to assess functional and metabolic state of the brain nervous tissue in terms of bioelectrical parameters. Simultaneous recording of the DC potential level and total slow electrical activity of the nervous tissue was performed in the object of study by nonpolarizable Ag/AgCl electrodes with a DC amplifier. The functional and metabolic state of the brain was determined in te...
OBJECTIVES The objective of this study is to test the hypothesis that the immature human brain exhibits slow electrical activity that is not detected by conventional (i.e. high-pass filtered) electroencephalography (EEG). METHODS Six healthy preterm infants (conceptional age 33-37 weeks) were recorded bedside with direct current (DC) EEG during sleep. Epochs with quiet sleep were selected to ...
Perceptual learning is considered a manifestation of neural plasticity in the human brain. We investigated brain plasticity mechanisms in a learning task using noninvasive transcranial electrical stimulation (tES). We hypothesized that different types of tES would have varying actions on the nervous system, which would result in different efficacies of neural plasticity modulation. Thus, the pr...
Epidural electrical stimulation has been applied in clinics for many years. However, there is still a concern about possible injury to spinal nerves. This study investigated electrical field and current density distribution during direct epidural electrical stimulation. Field distribution models were theoretically deduced, while the distribution of potentials and current were analyzed. The curr...
A bioelectrical reactor without cation-specific membrane was designed to test effects of direct electrical current on growth of Thiobacillus ferrooxidans bacterium. The results indicated that the cell significantly enhanced the growth of T. ferrooxidans. At a current of 30 mA, the maximum cells density reached 1.39 x 10(9)cells/mL within 84 h, which was 10 times faster than under a conventional...
When Policy Topic is not covered Treatment of tinnitus with any of the following therapies is considered investigational: tinnitus maskers, customized sound therapy combined psychological and sound therapy (eg tinnitus retraining therapy) transcranial magnetic stimulation, transcranial direct current stimulation electrical transcutaneous electrical stimulation of the ear, electromagne...
objective: obsessive-compulsive disorder (ocd) is one of the greatest and debilitating disorders, which many of its patients do not respond to psychotherapy and pharmacotherapy. in this regard, paying attention to new treatments such as transcranial direct current stimulation (tdcs) is important. the purpose of the present research was to examine the effects of tdcs on the obsession-compulsion ...
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