Mind-controlled Robot for Paraplegics Unveiled

A robot that can be controlled by the brainwaves of a paraplegic person wearing an electrode-fitted cap has been unveiled by a scientist.

A paralysed man at a hospital in the town of Sion demonstrated the device, sending a mental command to a computer in his room, which transmitted it to another computer that moved a small robot 60 kilometres (37 miles) away in Lausanne.

Bell's Palsy - Anatomy, Causes, Incidence and Prevalence, Symptoms
Bell's palsy is facial nerve disorder that causes weakness of the muscles on one side of the face. Its cause is unknown but most people make a full recovery within 8 to 12 weeks.

The system was developed by Jose Millan, a professor at the Federal Polytechnic School of Lausanne who specialises in non-invasive interfaces between machines and the brain.

The same technology can be used to drive a wheelchair, Millan said.

"Once the movement has begun, the brain can relax, otherwise the person would soon be exhausted," he said.

Global First: Paraplegic Man Stands, Walks After Electrodes Implanted in Spine
In a world first, neurosurgeons in the US said on Friday electrodes implanted in the lower spine had enabled a paraplegic man to stand up unaided, move his legs voluntarily and, with

But the technology has its limits, he added. The brain signals can be scrambled if too many people are gathered around a wheelchair, for example.

Besides making paraplegics mobile, neuroprosthetics could be used to help patients recover lost senses, researchers said.

Paralysis Can Be Averted by Monitoring the Spinal Cord During Surgery: Guideline
Proposal to supervise the spinal cord during spinal surgery and certain chest surgeries to help avoid paralysis or loss of muscle function, related to the surgeries.

Professor Stephanie Lacour and her team are working on an "electric skin" for amputees, a glove fitted with tiny sensors that would send information directly to the user's nervous system.

Eventually, researchers say they hope to create mechanised prosthetics that are as mobile and sensitive as a natural hand, Lacour said.

Brain Electrodes in Rhesus Monkeys A Major Step in Paralysis Research
Monkeys implanted with brain electrodes were able to see and move a virtual object and sense the texture of what they saw, a step forward in the quest to help the severely paralysed

Other researchers at Lausanne are working on enabling paraplegics to walk again with electrodes implanted in their spinal cords.

"The goal is that after a year of training with a robotic aide, the patient will be able to walk without a robot. The electrodes would stay implanted for life," said Professor Gregoire Courtine.

He said he is currently setting up clinical trials and hopes to run tests at Zurich's university hospital within a year.

Source-AFP