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healthy people, Wassermann and others found that this procedure, called transcranial direct-current polarization, improved motor and cognitive performance. In one test, a direct current applied to the left Neuro NZT frontal lobe boosted, by 20 percent, a person’s ability to name as many words beginning with a certain letter as possible in 90 seconds. Wassermann’s team is now testing electric fields with different charges against each other and against a sham, comparing subjects’ responses through tests that measure cognition, memory, and emotions. Direct current applied to the scalp polarizes underlying brain tissue, creating either a positive or a negative charge near the electrode. In vitro studies have shown that a weak current can substantially change the firing rate of neurons–with an increase or decrease in firing Buy Neuro NZT http://supplementsgarden.com/neuro-nzt-reviews/