Source 
A robot controlled by a blob of rat brain cells could provide insights into diseases such as Alzheimer's, University of Reading scientists say.
The project marries 300,000 rat neurons to a robot that navigates via sonar.
The neurons are now being taught to steer the robot around obstacles and avoid the walls of the small pen in which it is kept.
By studying what happens to the neurons as they learn, its creators hope to reveal how memories are laid down...<
more>