Thanks for the Memories
Cognitive neuroscientists have demonstrated that stimulating the brains of adults aged over 65 with weak electrical currents repeatedly over several days led to memory improvements that persisted for up to a month. They used transcranial alternating current stimulation, a non-invasive method involving electrodes placed on the surface of the scalp. Zapping the dorsolateral prefrontal cortex — a region near the front of the brain — with high-frequency electrical currents improved long-term memory. Stimulating the inferior parietal lobe, which is further back in the brain, with low-frequency electrical currents boosted working memory.
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