Assistive Technologies October/November 2010

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INNOVATION FOR INDEPENDENCE

ISSUE 75 October/November 10 £6.95

‘Lightning fast connections may be within reach’ By Dominic Musgrave LIGHTNING fast connections between robotic limbs and the human brain may be within reach for injured soldiers and other amputees with the establishment of a multi-million dollar research centre. Led by scientists at Southern Methodist University and funded by a Department of Defense initiative, the $5.6million Neurophotonics Research Center will develop twoway fibre optic communication between prosthetic limbs and peripheral nerves. Marc Christensen, Center director and electrical engineering chair at the University’s Lyle School of Engineering, said the connection will be key to operating realistic robotic arms, legs and hands that not only move like the real thing, but also ‘feel’ sensations like pressure and heat. He added: “Enhancing human performance with modern digital technologies is one of the great frontiers in engineering “Providing this kind of port to the nervous system will enable not only realistic prosthetic limbs, but also can be applied to treat spinal cord injuries and an array of neurological disorders. Every movement or sensation a human being is capable of has a nerve signal at its root. The reason we feel heat is because a nerve is stimulated, telling the

brain there's heat there.” Successful completion of the fibre optic link will allow for sending signals seamlessly between the brain and artificial limbs, allowing amputees revolutionary freedom of movement and agility. The goal of the Center is to develop a link compatible with living tissue that will connect powerful computer technologies to the human nervous system through hundreds or even thousands of sensors embedded in a single fibre. Marc said that unlike experimental electronic nerve interfaces made of metal, fibre optic technology would not be rejected or destroyed by the body’s immune system. He added: “Team members have been developing the individual pieces of the solution over the past few years, but with this new funding we are able to push the technology forward into an integrated system that works at the cellular level. “The ultimate combination of advanced optical nerve stimulation and nerve-sensing technologies will create a complete, two-way interface that does not currently exist. It will revolutionise the field of brain interfaces. Science fiction writers have long imagined the day when the understanding and intuition of the human brain could be enhanced by the lightning speed of computing technologies.”

A star-studded line-up of pop singers raised more than £500,000 for Help for Heroes in a spectacular charity concert held at Twickenham Stadium. Performers included Robbie Williams, Gary Barlow, Tom Jones (pictured), Pixie Lott, Katherine Jenkins, The Saturdays, Alesha Dixon, former Army officer James Blunt and Alexandra Burke. 60,000 fans packed the stadium, including military guests from the rehabilitation centre at Headley Court. Picture: Gary Kearney


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