Headgear measures city stimulation
A company is testing out headgear that measures brain response to the stimulation of the city.
The helmet measures frustration and excitement levels to assess how people navigate urban environments.
It is the brainchild of PhD student Panos Mavros, from University College London's Bartlett Centre for Advanced Spatial Analysis (Casa).
BBC Technology reporter Jane Wakefield put it to the test.
Video Journalist: Dougal Shaw