The power of mindHopes for greater independence for people with serious mobility problems are two monkey that managed to launch a robotic arm the strength of mind and motivation with the consumption of small delicacies!Macaques Both participated in a joint experiment at the University of Pittsburgh, the Carnegie Mellon University, where scientists examine how the movements of prosthetic limbs can be controlled directly by the brain. According to the survey, published in «Nature», the two monkeys were able to initiate the mechanical arm to carry in their mouths fruits, nuts and candies, the researchers achieved just thinking the whole process. This development is the most striking proof that the brain interconnector device - a machine can have excellent results and greatly improve the lives of those suffering from serious spinal injuries or diseases of the nervous system, such as myoatrofiki lateral sclerosis, which has blocking the wheelchair renowned astrophysicist Stephen Hawkins. As is known, scientists initially after monkeys learned how to move the mechanical arm (using a tzoistik), then tied their hands and gently put them to sit still in a chair, where he placed small electrodes in the brain that controls movements of the body. Engineers neurons Each of the 100 electrodes, connected to exactly one neuron and together result in a computer. The computer was programmed to analyze all the information sent by the 100 «engineers neurons», to convert into orders and then send them directly to the robotic arm. The Macaques learned very quickly how to drive the boom-which consisted of an artificial shoulder joint, an elbow joint and a hand that looked like a claw-and within a few days was able to handle so well to make movements demanding . Even the monkey managed to keep open the «hand» hands as close to food, to the closing as necessary to prevent falls by the delicacy and relax the «punch» when eating. Sometimes they bring hand to mouth just to clean the fingers of the artificial arm ... gleifontas them! Scientists are optimistic about the future applications of achievement, and highlights as the head of research, Andrew Schwartz, professor of neurobiology at the University of Pittsburgh, «during the normal interaction with the environment, the subject should be able to check the power exercised over the object. Such problems are intractable, but unsolved ». |
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