Thank you for the suggestions. I did research them, but unfortunately
your prediction came true: most of the studies are more inolved with
using the EEG as a tool rather than considering it as a subject of
research in and of itself. I don't know the state of the field, but my
guess is that perhaps it is already considered to be well understood
and everything has been worked out, so to speak.
Thank you again for your input, and I'll keep looking,