So to resurrect an old thread, I have been busting my chops getting the sensors working but I have now designed very discreet temperature and heart rate monitors to be used while playing the game. These should give a clear indication on how a person's body is reacting to stressful situations.
I have to do a little more construction and maybe add a couple filters but it's almost done.
Again I can't divulge exactly how it works (if you haven't already guessed that is) but I will get a video of some Amnesia testing hopefully within the next couple of weeks.
Sorry for the long delay on this but I have been largely distracted by my other little invention:
http://www.youtube.com/watch?v=dubjRZRMj4M
Excuse the expression on my face, it was dark and I was concentrating!