A paralyzed man regained the ability of tactile sensations


Due to the breakthrough in biocybernetics, 28-year-old paralyzed man regained the ability of tactile sensations.

This has been achieved through the integration of a set of electrodes in his brain, and by using a newly-developed prosthetic hands, which returned to the human tactile sensation. Research and clinical trials were carried out by the DARPA Agency (defense advanced research projects).

The man (whose name is withheld), thanks to two sets sewn into his brain electrodes (one located in the motor cortex — the part of the brain responsible for body movement, the second — the sensitive area of the cerebral cortex) are now able to control his new arm and feel touch.

A new artificial hand was developed by the applied physics Laboratory private Johns Hopkins University (Baltimore, USA). It uses a complex set of torque sensors that allow you to determine when the fingers of a hand pressure and trigger mechanism for the generation of electrical signals that are sent to the human brain.

The test is sensitive robotic arm was carried out “blindly”. The person blindfolded (for purity of experiment), and began to touch the fingers of a robotic arm. With “accuracy to 100 percent,” man said what finger at one time or another been touched.

More striking was the accuracy in determining the touch two fingers simultaneously, which scientists are not bad people. His brain via electrodes and a robotic arm was able to determine what is happening in this moment.

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