The level of concentration is calculated through the use of an EEG (electroencephalographic) chip (which sensors are located in the hat).
This one captures and decodes your brain waves.
The arduino is the element I've used to activate the dynamic characteristics of the dress
If you feel curious and want to know more you can always e-mail me at the address that you can find on my nange.co.uk . :)
(I do not own any right about the songs used in this video)