Electric_brain_math

Electric_brain_math

A light electrical current just above the right ear seems to improve numerical learning for at least six months, according to a new study. But if the current is moved to the left side, average peoples’ ability to learn basic numerical principles plummets.

The group behind the new study, led by Roi Cohen Kadosh, a cognitive neuroscientist at the University of Oxford’s Department of Experimental Psychology, found that 20 minutes of transcranial direct current stimulation (TDSC) trained on a particular place on the scalp—coupled with training sessions—boosted healthy adults’ ability to learn and use nine new numerical symbols (though it did not seem to affect manipulation of familiar numbers).

Researchers think that the electrical pulses are triggering molecular changes in the brain, such as neurotransmitters and their receptors—especially those involved in learning. Stimulation was targeted to the two parietal lobes, which are known to be involved in sensory, perceptual and numerical processing.

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