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Paralysed patients move limbs after virtual reality training

Eight completely paralysed people have regained function in their limbs following virtual reality training, in an accidental result that has astonished even the scientists involved.

Using a brain-machine interface, scientists showed that people with long-term severe paralysis could retrain the few remaining connections in their damaged spines, letting their brains talk to their extremities once more. This enabled them to feel sensation, move their limbs and improved their bladder and bowel control.

The results came about as a wholly unexpected side effect of training to help people use robotic exoskeletons, which let them walk upright.

The Chimera Quandary: Is It Ethical To Create Hybrid Embryos?

In Greek mythology, the Chimera is a monster that is part lion, part goat and part snake. Far from reality, sure, but the idea of mixing and matching creatures is real — and has ethicists concerned.

That’s because last week, the National Institutes of Health proposed a new policy to allow funding for scientists who are creating chimeras — the non-mythological kind. In genetics, chimeras are organisms formed when human stem cells are combined with tissues of other animals, with the potential for creating human-animal hybrids.

Pablo Ross of the University of California, Davis, inserts human stem cells into a pig embryo as part of experiments to create chimeric embryos.

Engineers implanted tiny sensors in rats’ nerves and muscles. Are humans next?

The benefits of the technology for humans, while still largely hypothetical, are promising. The sensors could allow physicians to monitor the health of organs, create new therapies for neurological disorders, and help the physically impaired to control prosthetics.

While chips have been implanted in humans and other animals before, these sensors mark a significant improvement because they are small, wireless, batteryless, and could last in the body for years without degrading, said Michel Maharbiz, the associate professor who devised and studied the sensors alongside neuroscientist Jose Carmena.

“Hopefully the [tiny sensors] demonstrate a new direction for the field, and then you could build the consensus that’s needed to drive these forward,” Maharbiz said.

Science Explains: Power Armor

It reminds of the medieval knight armor.


Power Armor. A powered exoskeleton with a tough outer shell, coupled with twice the mobility of a normal soldier and the strength of an elephant.

For decades, media has emulated what scientists have been struggling to create for millennia. Armor strong enough to both protect the wearer, and strengthen them through mechanical support.

In recent years, researchers have nearly achieved this kind of technology, with body armor reaching durability tougher than steel, and hobbyists making exoskeletons which can lift hundreds of pounds.

Chip-enhanced political candidates coming soon

My new OpEd article for the San Francisco Chronicle on chip implants and transhumanism: http://www.sfchronicle.com/opinion/openforum/article/Chip-en…694149.php They also did a 2-minute video of my presidential campaign: http://bit.ly/2aERJxc


The implant can do all sorts of things, like unlock my electronic house door, act as my password on my computer, and even send a text message when people with the right phone and app come near me. Keys, credit cards, ID cards, medical records and passwords — these are all things that can be replaced by a tiny chip in the hand. If having technology in your bodies sounds wacky, consider the millions of people around the world who have artificial hips or dentures, or deaf people who use cochlear implants to hear sounds. […] former Vice President Dick Cheney famously asked to have the Wi-Fi on his heart valve turned off, just in case terrorists tried to hack it. A company in Sylmar (Los Angeles County) called Second Sight already has FDA approval for bionic eyes.

Researchers have made a prosthetic arm based off Luke Skywalker’s

A US Defence Advanced Research Projects Agency (DARPA)-funded prosthetic arm will be released for commercial use beginning in late 2016.

The LUKE arm, one of the world’s most advanced prosthetics, was designed by Segway creator Dean Kamen and has been under development for close to a decade.

The LUKE arm is named after Luke Skywalker’s advanced prosthetic from the Star Wars films, and its banner feature is its control system.

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