- Researchers reprogram brain cells in mice with thin beam of light demonstrating that a set of neurons trained to fire in unison could be reactivated as much as a day later if just one neuron was stimulated. Their findings suggest that groups neurons may form the basic building blocks of learning http://healthmedicinet.com/i/researchers-reprogram-network-of-brain-cells-in-mice-with-thin-beam-of-light/ 12 comments science