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mhajicek writes:

Using a 30-year-old brain stimulation technique, scientists have successfully boosted memory performance in healthy adults by zapping a specific bunch of neurons. While it’s unclear at this stage whether the effects will be long-lasting, the researchers are hopeful it could one day be used to treat patients with conditions that affect memory, such as Alzheimer’s. The study has been published in Science.

Brain zapping might sound horrifying, but transcranial magnetic stimulation (TMS) is a non-invasive procedure that’s been studied as a potential treatment for various disorders since the 1990s. TMS involves using magnets that are carefully positioned on the scalp to induce weak electric fields; these transient fields then stimulate nearby neurons in the outer layer of the brain called the cortex. Although researchers aren’t exactly sure why it works, it does appear to have positive effects on some patients with depression. The possibility that this technique could affect neuronal circuits involved in memory, however, had not been previously investigated.

Here is a link to the original Northwestern University release.