You know if I buy that thing I'm going to take it apart and

a)  Make a bong.

b)  Find away to hook it up to a computer and make it more programmable

But holy shit I'm still impressed it actually exists!

I have seen a few of these out there.  I'm looking for something that I can easily hack into and program myself.  Certainly these fit the bill on the hacking front, but I worry that the EEG helmet itself isn't really so hot...

I have in fact looked at a few of those as well.  Honestly though I think working with EEG is going to be the most direct route.  Increase theta/delta waves and I'm pretty sure heart rate, respiratory rate and galvanic skin response are all going to drop in sync...  though I could be wrong!

The thing is I actually don't mind spending a fair amount (if I have to) to get something that will really work and that can be extendable... I don't mind writing my own device driver to hack into the thing either...in fact whatever I get I'm almost certainly going to do that anyway...  unless of course there is one that comes complete with say a python programable interface!