25,000 neurons growing on a multi-electrode array form a living “brain,” which is hooked up to a flight simulator on a desktop computer. Information on the aircraft’s movements is processed by stimulating neurons with electrodes. The neurons then fire in patterns that control the aircraft’s flight path.

In depth videos by The Thought Emporium:
https://youtu.be/V2YDApNRK3g
https://youtu.be/bEXefdbQDjw