Living brain cells grown on an electrode array learned a simple video game. In 2022 researchers stimulated the culture with feedback and watched it improve at Pong. The work probed how networks of neurons adapt to their environment.
A living network
The system is biological. Human and mouse neurons grew on a multi-electrode chip. Signals flow both ways.
Feedback loop
Learning is closed-loop. Electrical inputs told the culture where the ball was. Responses moved the paddle.
Goal-directed change
Adaptation appeared. The culture improved its play over time. Simple learning was observed.
A testbed
Utility is the point. The platform studies computation in real neurons. It bridges biology and engineering.
Modest claims
Caution is stressed. The behavior is basic, not sentient. Interpretation must stay grounded.
Ethical questions
Discussion followed. Culturing learning neural tissue raises new issues. The debate is early.
The bottom line
Cultured neurons on an electrode array learned to play Pong through closed-loop feedback in 2022. The work studies computation in living networks. It raises fresh scientific and ethical questions.
