c, i measured the action potentials in his motor cortex arm while nathan copeland was concentrating on the movement. the computer recorded the action potentials and compared them using artificial intelligence and machine learning algorithms. now, when nathan thinks the specific movement, the computer recognizes it and moves the prosthesis accordingly. through the 2 other chips in his summative sensory cortex. he is also able to feel with his prosthesis i brain computer interface. research has come a long way. take the example of neuro grains. these microchips are each about the size of a grain of salt and have been designed to be scattered across the brain surface or inside its tissue. their advantage is that they can detect and pass on signals from many areas of the brain. a team at brown university in the us develop the system and there are many other projects the astray, liam companies. syncron has succeeded in getting a brain computer interface into the brain through blood vessels. thus avoiding the need for brain surgery, the 1st person to be implanted with his stent rod interface

this dream has come true for nathan copeland. here we see him playing the game final fantasy just by thinking. and here is his robot hand in action. this is how his brain computer interface works. when nathan copeland suffered an accident in 2004, he was left with tetra politic paralysis. but thanks to a brain computer interface, nathan can now move a prosthetic arm. electrodes in his brain, read his brain waves and son signals to move the prosthesis. the reason why we are able to control electronic devices by the power of thought alone is because our brains use electronic signals. ah. the human brain has $86000000000.00 neurons, and each one sends signals across thousands of synopses. when we want to raise our arm, say, a region in our brain becomes active as neurons fire. if the voltage changes by a large enough amount, over a short interval, a neuron generates an all or nothing electrochemical pulse called an action potential, and a signal gets sent between the neurons. this action potential can be measured with electrodes. th