The act of deception is probably as old as civilization — not long after humans began communicating, they began communicating lies. Shortly after that, they probably started trying to force others to tell the truth. Modern technology has given us a few options in this arena, from dubious polygraphs to powerful drugs — and now a new study suggests brain interference can work, too.
We’ve already seen how magnets hovering close to a person’s head can affect speech, behavior and learning patterns. Now it appears zapping your brain with a 9-volt battery will make you better at video games, at least according to one researcher. Don’t try this yourself, though.
Magnetic fields applied to the brain can be used to treat ADHD, improve memory and even control your behavior and sense of morality. But unless you’re a neuroscientist, it’s hard to see the physiology of this phenomenon, other than trying to interpret colorful brain scans.
The following video accomplishes this beautifully.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.