Can brain stimulation improve memory?

 

Transcranial alternating current stimulation (brain stimulation) is a non-invasive method involving electrodes placed on the surface of the scalp. Brain stimulation of adults aged over 65 with weak electrical currents repeatedly over several days leads to memory improvements lasting for up to a month. 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, an area further back in the brain, with low-frequency electrical currents boosted working memory. Future studies will have to address whether the memory improvements can persist for longer than a month.

It also remains to be seen if treatment can help people with conditions such as Alzheimer’s disease.  

Read the article: Brain stimulation leads to long-lasting improvements in memory

Image by Gerd Altmann from Pixabay 

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