You can now read 10 articles in a month for free on BostonGlobe.com. Read as much as you want anywhere and anytime for just 99¢.

The Boston Globe

National

Shocking your brain

Keeping your attention

A growing body of research suggests noninvasive brain stimulation, such as transcranial direct current stimulation (tDCS), may improve specific cognitive skills in healthy subjects. Put another way, a small intermittent shock to your brain might keep your attention from eroding throughout the day.

You have reached the limit of 10 free articles in a month

Stay informed with unlimited access to Boston’s trusted news source.

  • High-quality journalism from the region’s largest newsroom
  • Convenient access across all of your devices
  • Today’s Headlines daily newsletter
  • Subscriber-only access to exclusive offers, events, contests, eBooks, and more
  • Less than 25¢ a week