Hello community, here again to share interesting information with all of you, recently I have been reading about some very interesting medical advances, which leave most people who for some reason have had quadriplegia, ie loss of sensory and motor capacity of both upper and lower limbs, usually this is due to a spinal cord injury, which is responsible for transporting motor signals from the brain to the hands and feet, and to carry the sensitive signals from the extremities to the brain for processing. # Naturally this is a very complex process, in which millions of nerve cells *(neurons)* participate, and which is carried out in a matter of milliseconds, this whole process is very fast, in which once something is perceived, this information is transported to the brain so that later it processes it and generates a reaction, which is transported by a series of nerves that will activate a determined group of muscles, it sounds simple, but it really is not. ![image.png](https://cdn.steemitimages.com/DQmarEH74HKLV7t4P5AczDQpcd6NxZpdmSB4zSUSDL2thGm/image.png) _{Edited image[Source](https://pixabay.com/es/illustrations/web-red-programaci%C3%B3n-3706562/)}

Until now, very advanced technology had been used to try to mimic this process, **for what purpose?**, in order to give back to people who have lost this natural condition. Many experiments had been carried out on monkeys and chimpanzees, but since these animals do not have the ability to transmit information as we humans do, it has been very difficult to determine more precisely the degree of progress. But, in 2004, an American citizen named Copeland had an accident and the spinal cord injury he suffered left him totally limited in movement and sensation from the neck down. He volunteered for the scientists conducting this experiment to test their prototype on him. The first step was to perform neurosurgery to implant a series of microelectrodes in the cerebral motor cortex that would allow him to carry the impulses generated there to a robotic arm and make it move. ![image.png](https://cdn.steemitimages.com/DQmb8UVXdnWj6iCfHx9d5SQsrr7dcGQ95GR8XLraw27qqWX/image.png) _{[Source](https://pixabay.com/es/illustrations/mano-robot-m%C3%A1quina-697264/)}

But the experiment does not end there, it has also incorporated electrodes in the cerebral sensory cortex, which allows it, of course, to be activated with the impulses it perceives through the electrodes and also to pass the information to the motor cortex so that it gives the order and executes the necessary movement. I particularly think this is **great news**, incorporating robotics and medicine for this purpose is a great achievement, and many will be hopeful for this great work. #### Hoping that this post is to your liking, I bid you farewell.

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