brain-computer interface

Mind-controlled cursor may be easier than previously thought

When scientists at the University of Washington recently drilled into the skulls of seven people with severe epilepsy and placed thin sheets of electrodes directly onto their brains, they were surprised by the brain activity they observed.

While physicians were studying neuro activity to investigate seizure signals, a separate team of bioengineers was simultaneously on the lookout for exactly how the brains of the seven volunteers behaved as they learned to move a cursor using their thoughts alone. It turns out that, in as few as 10 minutes, activity went from being centered on the prefrontal cortex, which is associated with learning new skills, to areas seen during more automatic functions, such as waving one's hand or kicking a ball.

In other words, in just a matter of minutes these brains behaved as if they had already mastered these Jedi mind tricks.… Read more

Brain implants let paralyzed woman move robot arm

Jan Scheuermann can't use her limbs to feed herself, but she's pretty good at grabbing a chocolate bar with her robot arm.

She's become the first to demonstrate that people with a long history of quadriplegia can successfully manipulate a mind-controlled robot arm with seven axes of movement. Earlier experiments had shown that robot arms work with brain implants.

Scheuerman was struck by spinocerebellar degeneration in 1996. A study on the brain-computer interface (BCI) linking Scheuermann to her prosthetic was published online in this month's issue of medical journal The Lancet.

Training on the BCI allowed her to move an arm and manipulate objects for the first time in nine years, surprising researchers.

It took her less than a year to be able to seize a chocolate bar with the arm, after which she declared, "One small nibble for a woman, one giant bite for BCI." Check it out in the video below. … Read more

Prius Project concept bike lets you shift by thinking

Powering uphill on your bicycle often comes down to mind over matter. What if, in addition to controlling your protesting thigh muscles, your mind was master of your bike's gear shifter?

That idea is being made flesh in the form of a high-performance concept bicycle that sports a thought-controlled interface.

Electrodes in the rider's helmet pick up neuro-electrical activity. Signals from the helmet are transmitted to an electronic gear shifter mounted under the seat. With training, a person can learn to shift up or shift down simply by thinking it.

Gives "Look Ma, no hands!" new meaning.… Read more