"A portable, plugless, brain-to-computer interface using electroencephalography (EEG) electrodes strapped to the scalp has been developed by a team in the US. The device may allow paraplegics and others who have lost control of their limbs to control prosthetic devices and other equipment using their thoughts alone."

A paralyzed patient implanted with a brain-computer interface device has allowed scientists to determine the relationship between brain waves and attention.

What's being study in this article are amputees having the capability to control a robotic arm by rearranging the nerves where the lost limb was. The patients were capable of mimicking hand movements, motions, and picking up different items like a glass, cracker, and a checker rolling on a table. The results were described in Journal of the American Medical Association.

Touch Bionics' i-LIMB was considered one of the top 50 inventions of 2008 in Time Magazine. The i-LIMB has five separately powered digits control by myoelectrics and powered by a lithium-ion battery.

The ProDigits is a bionic fingers prosthetic developed by Touch Bionics out of Livingston, West Lothian. The device fits over the palm of a person's hand where loss fingers are.

Researchers have successfully reconstructed 3-D hand motions from brain signals recorded in a non-invasive way, according to a study in the March 3 issue of The Journal of Neuroscience. This finding uses a technique that may open new doors for portable brain-computer interface systems that can be an advantage for people with disabilities or paralysis.

Research on placing microelectrodes on top of the brain instead of being implanted. Useful for people with paralysis.

Controversy over Olympian Oscar Pistorius advantage with bionic lower limbs over the other racers.

Medical products company Second Sight developed an optical prosthetic, the Argus II, to be used for those who loss their vision due to injuries or diseases. It's a wireless communication system that's implanted into the eye that will capture images and transmit it to the brain. Second Sight has received funding from the U.S federal government.