PICTURES! Latest from Big Brother's Lab Rat task!

For this week’s shopping task, the Big Brother 2012 housemates have become lab rats for Big Brother.

As the most intelligent housemates, Benedict, Luke A and Lydia have become scientists, and will monitor the rest of the group from Big Brother’s new scientific research division. Or rather, the small task room with a bit of white paint on the walls.

The others must complete various experiments, whilst the scientists analyse the results.

The first task this morning saw the lab rats exercising on a giant wheel in order to win breakfast, after Big Brother emptied the cupboards of everything this morning.

The lab rats don’t know it, but when a female housemate is running on the wheel the group will get treated to nice food, but male housemates will get disgusting gruel.

Will the rats notice the connection?

> Big Brother 2012: Lab rats shopping task: All the details!

Browse the latest pictures below!