Scientists have created a robot that uses actual brain tissue to think.

Gordon was created by scientists at the University of Reading who used cultured rat neurons to control the mechanical device.
However, the scientists say their objective is not to create some kind of Frankenstein's monster, but to understand how memories are stored in our brains.
They will observe Gordon to find out how nerve cells operate as a network when electrical impulses are triggered.
They also hope to shed some light on diseases that attack brain functioning.
Gordon's brain consists of between 50 000 and 100 000 neurons – described by his creators as "our little model brain".
The neurons, cultured from rat foetuses, are networked in an array of 60 electrodes – the MEA (mutli-electrode array) which can measure the impulses sent by the neurons.
The "brain" is housed seperately from the robot and communicates with it via Bluetooth.
Scientists are already observing brain activity, with neurons establishing links with one another, and hope it will have the ability to learn.