The experiment also shows that those under-qualified people then put in 50% more effort than the people who are more qualified.

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The experiment also shows that a new sensory input can be interpreted by a region of the brain that normally does something else (without having to "hijack" the function of that brain region).

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In one experiment that Deisseroth shows to lab visitors, a pulse of light to the right side of a mouse's motor cortex makes the animal run in circles to the left.

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But Mr Broadbent pulls together some striking evidence in support, including this wild and wacky chart (below) which looks like an electrical experiment gone wrong, but actually shows the movement of output across 81 sectors of the economy since the late 1990s.

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Another scene shows Clark using a piece of duct tape to remove lint from an experiment's air filter.

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