communicate like a cat? brain wave cat ears

While we trying to use Neurosky as one of the method to understand branded ux,
I find an interesting product using the same technology on the internet, it calls Necomimi,
means cat's ears in Japanese, let's see how it works.

http://www.necomimi.com/HowNecomimiWorks.aspx

Well, don't know if the real cats express their feeling that way, a real good example of commercialization of researching equipment. However, for our research, don't know simple reading indicates that user is focused or relaxed can be interpret in to emotional engaged or not, anyway, we will try to find out.