Howdy!
I am not sure if it is the same work that you are asking about,
but I beleive that Jose Pardo in the psychiatry department here
at U of Minnesota is involved in something similar. I beleive that
his PET work has emotional components, as well.
Hope it helps!
Cheers!
Rogene M. Eichler
Neuroscience Program
U of Minnesota
Minnesota Supercomputer Institute