The Nexus Trilogy a treadmill in Kyoto, Japan. Later work done by Phillip Kennedy and colleagues built the first intracortical brain–computer interface by implanting neurotrophic-cone electrodes into one man, Johnny Ray, a stroke victim unable to move muscles below his face. With the connection made, the electrodes can record the electrical impulses that travel across neurons when thinking occurs. Those signals are transferred to a transmitter embedded beneath the scalp. Amplified 1,000 times, the signals go to a computer, which translates them into cursor movement, allowing him the ability to communicate simply by thinking. Other research has seen success with sensory data, including
Excitable medium brain can be modelled as excitable media. A group of spectators at a sporting event are an excitable medium, as can be observed in a Mexican wave (so-called from its initial appearance in the 1986 World Cup in Mexico). Excitable media can be modelled using both partial differential equations and cellular automata. Cellular automata provide a simple model to aid in the understanding of excitable media. Perhaps the simplest such model is in. See Greenberg-Hastings cellular automaton for this model. Each cell of the automaton is made to represent some section of the medium being modelled (for example, a patch