Media playback is unsupported on your device

Calls to regulate electrical brain stimulation

23 August 2014 Last updated at 23:18 BST

Early research suggests that using electrical currents to stimulate your brain could improve your attention and maths ability.

It could also help alleviate symptoms of depression and Parkinson's disease.

But now similar devices (like the one shown in this clip) are sold online and marketed specifically to gamers, which has led for calls to regulate the technology.

Dr Hannah Maslen from the Oxford Martin School at the University of Oxford, explains what electrical stimulation can do and why her team wants regulation.

Read more: Warning over electrical brain stimulation

Video Journalist: Dave O'Neill

Copyright © 2015 BBC. The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.