The essence of the brain is to learn. But much simpler structures, composed only of a culture of neurons, are also capable of this. This was shown in an intriguing experiment in which researchers taught neurons to play Pong.
Pong is one of the very first video games created in history. A virtual version of ping-pong, two rackets exchange a ball that bounces off the screen. A game so simple in principle that a human neural network is able to play it after only 5 minutes of learning. It is the result ofconducted by several English and Australian universities.
In this video, it is human neurons that manipulate the racket. © Brett J. Kagan and to the. BioRxiv
A bunch of neurons capable of playing Pong
The researchers placed human neurons, obtained from, on an electronic chip. form a network and can activate and communicate with each other. The chip is connected to a on which a simulation close to Pong, but with one player, is launched. If a located to the right of the chip is triggered, the neurons know that the ball is to their right. As in Pong, the goal is to move the racket to intercept the ball.
learn to play by dint of trying and when the ball is intercepted, they are informed by an electrical signal. After 5 minutes of testing, they are able to play the video game. It is faster than machines with . However, the skills to be acquired are much simpler than those required of AIs. Despite everything, this is the first time that we have observed, in real time, signs of the intelligence of a layer of neurons in a system. in vitro.