Great article Liese.
I especially liked the bit about mirror neurons and emotional contagion - which explains in infinitely more rational and logical terms than the Kleinian definitions, the notion of projective identification. It also removes the issue of intention that psychoanalysis lays on the phenomenon of PI, and that makes it more workable from my point of view.
It makes perfect sense to me that people can feel and be affected by each others emotions, it's good to have it explained via neuroscience.
LL