] "In his experiment, Potter places a droplet of solution
] containing thousands of rat neuron cells onto a silicon
] chip that's embedded with 60 electrodes connected to an
] amplifier. The electrical signals that the cells fire at
] one another are picked up by the electrodes which then
] send the amplified signal into a computer. The computer,
] in turn, wirelessly relays the data to the robot.

Yes, you read that correctly.

Technology Review - Rat-Brained Robot