Smart People Really Do Think Faster

The smarter the person, the faster information zips around the brain, a UCLA study finds. And this ability to think quickly apparently is inherited.

The study, published in the Journal of Neuroscience, looked at the brains and intelligence of 92 people. All the participants took standard IQ tests. Then the researchers studied their brains using a technique called diffusion tensor imaging, or DTI.

Capturing Mental Speed

DTI is a variant of magnetic resonance imaging (MRI) that can measure the structural integrity of the brain’s white matter, which is made up of cells that carry nerve impulses from one part of the brain to another. The greater the structural integrity, the faster nerve impulses travel.

Filed under: Science

Japanese gadget controls iPod in blink of an eye

A wink, a smile or a raised eyebrow could soon change the music on your iPod or start up the washing machine, thanks to a new Japanese gadget. The device looks like a normal set of headphones but is fitted with a set of infrared sensors that measure tiny movements inside the ear that result from different facial expressions.

Filed under: Technology