It would be interesting to know this type of stuff for Optimal performance. But, for basic users, like me, who are just trying to get this stuff to work, it has to be kept simple. I haven't a clue what my brainwave state is during photoreading, I just feel lucky to see the blip page . If I had to worry about whether my brainwaves are 4-8 Hz or 8-14 Hz just to get it working on a basic level, I would box up the course and return ti LS for refund.

Michael