How many brain cells does it take to play a video game? No, really.
No, really. That's not a joke, and there isn't a punchline. Instead, there's a real actual answer, thanks to a neural network system called DishBrain.While their slow-moving, one-sided strategy for digital table tennis won't see them win any e-sports championships in the near future, it does reflect the potential in fusing living tissues with silicon technology.
This is the first synthetic biological intelligence experiment that shows neurons can adjust their activity to perform a specific task – and, when provided with feedback, can learn to perform that task better. It's pretty amazing stuff, with potential applications in computing, as well as studying all sorts of brain stuff, from how drugs and medication impact brain activity to how intelligence develops in the first place.
. These cells were grown on arrays of microelectrodes that could be activated to stimulate the neurons, thus providing sensory input. For a game of Pong, microelectrodes on either side of the dish indicated whether the ball was to the left or right of the paddle, while the frequency of signals relayed the ball's distance.
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