article_snippet.sent: Devices like this where you just plonk it on your head, it's really unclear what areas of the brain are being targeted.'
article_snippet.sent: Websites like Brain Simulator advertise the simulators for $55 US and explain how to make your own electrode .
article_snippet.sent: When placed on the head, the devices stimulates the brain by applying electrical currents to a small region of the scalp.
article_snippet.sent: the devices is currently being used at Oxford University to improve speaking in those who suffer from speech production problems.
article_snippet.sent: One site even advertises how to make your own electrodes using a household sponge. '
highlights_snippet.sent: the equipment is currently being used to treat people with speech impediments but is still very much in trial stages .